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Activated clay product description, chemical composition and development prospects

Activated clay is a clay (mainly bentonite) as raw material, the inorganic acid, followed by water rinsing, drying adsorbent made of, look for the milky white powder, odorless, tasteless, non-toxic, strong adsorption, can adsorb colored material, organic matter. Easy to absorb moisture in the air, place too long will reduce the adsorption properties. However, heated to 300 degrees Celsius above began to lose water of crystallization, the structure changes, effects of fading effect. Activated clay is insoluble in water, organic solvents and oils, almost completely soluble in hot caustic soda and hydrochloric acid, the relative density of 2.3 ~ 2.5, in water and oil swelling minima.

Mainly white and pink, odorless and tasteless, non-toxic, good activity, strong adsorption, easy to absorb moisture in the air, such as placing too long or moisture will reduce its adsorption function, the use of appropriate heating (80 to 100 degrees) resurrection, if heated to 300 degrees above began to lose water of crystallization, itself changes in the structure, affecting decolorization.

Performance:

1, selective adsorption ability, the decolorization rate high, with a low rate of oil, filtration speed, add less;

2, effectively remove grease total phospholipid, soap and trace metal ions, is a natural antioxidant;

3, removal of oil in aflatoxin, pesticide residues and other toxins and odor;

Acid number 4, after bleaching not rise, do not back color, clear and transparent, stable quality, long shelf life.

Refining production 5, especially suitable for mineral oil, vegetable oil, animal oil.

Animal and vegetable oil refining, for the decolorization and purification, remove harmful pigment, oil phospholipid, saponin, cotton acid, making high-grade edible oil.

In the petroleum industry for refining decolorization and purification as well as petroleum cracking of paraffin wax, oil, grease, kerosene and other minerals.

Activated Clay

In the food industry, as Wine and sugar juice clarifying agent, stabilizing, beer saccharification processing, the syrup purification etc..

In the chemical industry, as a catalyst, filler, desiccant, adsorbent, wastewater treatment.

National defense, medical health, can be made of chemical drug agents, antidote, along with the development of society and science, more and more extensive application of activated clay.

The scope of application

Activated clay than the large surface area, strong adsorption capacity, high decoloration efficiency; activity was low, do not react with grease and other chemical substances; used for filtering liquid decolorization speed fast, residual liquid rate is low, such as edible oil bleaching, sugar decolorization decolorization; after the liquid is transparent and clear, stable quality, no smell, no to color, not acid; after using the product, after proper treatment can be used for the two time, it will not cause environmental pollution and other products and the advantages of wide application in adsorption, granular clay, carbonless copy paper with chromogenic agent.

(a) adsorbent

By 1, edible oil bleaching products are widely applicable to all types of vegetable oil, animal oil and mineral oil, such as soybean oil, rapeseed oil, peanut oil, cottonseed oil, sunflower oil, palm oil, coconut oil, castor oil, tea oil, corn germ oil, refined oil, sesame oil, tung oil, red flower oil etc..

2, sugar decolorization decolorization products by the rich magnesium aluminum silicate purification refined sugar, its colour and lustre, reducing sugar content, pH, ion content, thionyl chloride ion content, protein content, sugar boiling temperature and calcium and magnesium ions content reached the current standard, save the decolorizing treatment costs about 60%. The filter cake after decolorization of mixed feed, reduce environmental pollution, to achieve comprehensive utilization.

3, environmental odor absorbing agent level product has good adsorption odor, odor can eliminate the refrigerator, pet bedroom, toilet and other places.

(two) the particulate clay

(three) no color agent with carbon paper

Economic benefit analysis of bentonite raw material price is about 250 yuan / ton, ordinary activated clay the domestic market price of about 1200 yuan 1500/ tons.

According to the 10000 tons of activated clay size estimation, equipment and infrastructure investment of about 300 – 4000000 yuan, cost 600 to 700 yuan / ton, the annual output value of 14000000 yuan, profits and taxes 6000000 yuan. If the production of white carbon black, 4A molecular sieve higher benefits. Bentonite is our advantage in resources, reserves ranking first in the world, but the development and utilization of deep processing started late, backward technology, poor product quality, production scale is small, high-quality activated clay domestic oil bleaching and other departments use still need to be imported from abroad. USA activated clay production capacity has reached 4000000 tons / year or more, and our country is only 200000 tons per year. According to statistics, in recent years in China on activated clay demand at an annual increase rate of 7-8%. After investigation and analysis of the domestic market, only the oil refining market is huge, according to industry experts predict, China’s annual output of various vegetable oil is about 8000000 tons, imported oil 500 – 6000000 tons of refined oil, which accounted for 1/2, about 6500000 tons. Therefore, the production of activated clay and broad market prospect.

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Activated bleaching clay product performance, features, overview

activated bleaching clay  appearance is grey white powder, insoluble in water, oil and organic solvent. With higher efficiency, fast filtering speed, low residual oil rate.

This product can greatly reduce the oil industry, oil production costs, compared with similar products, the amount can be reduced by about 5%, the residual oil and the filtering speed, reduce the rate of filter cake, can completely replace the activated carbon. New decolorization products is a good performance, low price.

Activated Bleaching Clay

Activated bleaching earth function:

1, selective adsorption ability, the decolorization rate high, with a low rate of oil, filtration speed, add less;

2, effectively remove grease total phospholipid, soap and trace metal ions, is a natural antioxidant;

3, after bleaching not rise, do not back color, clear and transparent, stable quality,Acid number long shelf life.

4, especially suitable for mineral oil, vegetable oil, animal oil.Refining production

Activated bleaching earth scope:

Animal and vegetable oil refining, for the decolorization and purification, remove harmful pigment, oil phospholipid, saponin, cotton acid, making high-grade edible oil.

In the petroleum industry for refining decolorization and purification as well as petroleum cracking of paraffin wax, oil, grease, kerosene and other minerals.

In the food industry, as Wine and sugar juice clarifying agent, stabilizing, beer saccharification processing, the syrup purification etc..

In the chemical industry, as a catalyst, filler, desiccant, adsorbent, wastewater treatment.

Product features:

The ion exchanged montmorillonite and acid activated the interlayer (calcium, magnesium, potassium, sodium and so on) position by small diameter ion substitution and stripping, the crystal ends pore increases, larger specific surface area. At the same time, because the substitution of hydrogen ion on eight sides or tetrahedral polyvalent ions, resulting in more negative electricity. The acid treated montmorillonite activation becomes activated clay has strong adsorption ability.

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Activated clay production technology and economic

Activated clay is a clay (mainly bentonite) as raw material, the inorganic acid, followed by water rinsing, drying adsorbent made of, look for the milky white powder, odorless, tasteless, non-toxic, strong adsorption, can adsorb colored material, organic matter. Easy to absorb moisture in the air, place too long will reduce the adsorption properties. However, heated to 300 degrees Celsius above began to lose water of crystallization, is the change in structure, effects of fading effect. Activated clay is insoluble in water, organic solvents and oils, almost completely soluble in hot caustic soda and hydrochloric acid, the relative density of 2.3 ~ 2.5, in water and oil swelling minima. Widely used in mineral oil, animal and vegetable oil, wax and organic liquid decoloration refining. Can also be used as a moisture desiccant, internal medicine alkali antidote, vitamin A, B adsorption agent, lubricating oil contact contact agent, the gasoline vapor refining agent, can also be used as a temperature of polymerization catalyst, high temperature polymerization agent and manufacturing of particulate clay raw material.

Activated Clay

Activated clay production method of bentonite as raw material of activated clay production bentonite as raw material are all wet, dry, semi wet, vapor phase method, calcination etc..

The conventional wet is bentonite, sulfuric acid, water after mixing in the case of mixing heated to 100 ℃ activation for a period of time after washing, drying, crushing to obtain the product. Disadvantages of this method is the largest consumption of acid, resulting in washing water consumption, serious environmental pollution, high cost. The following steps: processing; the original soil beating, purification and emission sand and water; adding acid and water, in the range of 80 ~ 100 ℃ activation of 10 – 30min, and at the same time, 1000r/min and stirring; filtering, filtrate recycling and refining purification step, the filter residue to the next step; drying, crushing; finished product testing, packaging. Dry the traditional production process is a small amount of sulfuric acid and water and bentonite mixture and stir well, for a period of time, then drying, grinding to obtain the product. Although this method reduces the consumption of acid, no waste water discharge, the pollution of the environment, but the quality of the products is low, which greatly limits its use. The following steps: processing; adding acid and water extrusion method at room temperature solid phase activation; drying and crushing; finished product testing, packaging. The production process and semi wet is a small amount of sulfuric acid and water and bentonite mixture and stir well, activated under certain temperature (placed) for a period of time, then adding acid and water and then a second step activation. The following steps: processing; adding acid and water at room temperature solid state extrusion method activation; adding acid and water activation; rinsing; filtering; drying, crushing; finished product testing, packaging. The production process and semi wet it can solve some problems of the wet and dry, simple process, low cost, high product quality.

Generally speaking, the production technology of semi wet than the traditional process of acid consumption reduced by half to 2/3 (1/2 ~ 2/3), water use reduced 1/2 ~ 2/3, less waste water, a treatment that is no environmental pollution, low cost, under the same conditions, the quality of the products. 30% than the traditional method of decoloring capacity. Vapor phase technique in pressure thermal vapor to water, acids, soil and dry mix granular mixture, between static by vapor phase, liquid phase, solid phase was acidified reacted furiously to form semi dry granular acidification, a kind of new technologies by rinsing processes for the preparation of active clay. The technology to technology as one of the advantages of the existing legal system of dry and wet clay and calcination method of activated white clay production technology, has a good practical value, provides a new technology for China clay production. The technology and traditional wet preparation of activated clay process compared with the following advantages:

The consumption of acid and water consumption were reduced by about 50%, the production period is shortened by 1/2 ~ 1/3; the light pollution, and easy to control; it covers an area of small, high utilization rate of equipment, less investment, quick effect and close connection with the existing wet process and equipment. According to different processes, activated clay can be aluminum, silicon and aluminum sulfate white sodium sulfate, gypsum etc..

Economic benefit analysis of bentonite raw material price is about 250 yuan / ton, ordinary activated clay the domestic market price of about 1200 yuan 1500/ tons.

According to the 10000 tons of activated clay size estimation, equipment and infrastructure investment of about 300 – 4000000 yuan, cost 600 to 700 yuan / ton, the annual output value of 14000000 yuan, profits and taxes 6000000 yuan. If the production of white carbon black, 4A molecular sieve higher benefits. Bentonite is our advantage in resources, reserves ranking first in the world, but the development and utilization of deep processing started late, backward technology, poor product quality, production scale is small, high-quality activated clay domestic oil bleaching and other departments use still need to be imported from abroad. USA activated clay production capacity has reached 4000000 tons / year or more, and our country is only 200000 tons per year. According to statistics, in recent years in China on activated clay demand at an annual increase rate of 7-8%. After investigation and analysis of the domestic market, only the oil refining market is huge, according to industry experts predict, China’s annual output of various vegetable oil is about 8000000 tons, imported oil 500 – 6000000 tons of refined oil, which accounted for 1/2, about 6500000 tons. Therefore, the production of activated clay and broad market prospect.

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Bentonite encyclopedic knowledge

Bentonite (Bentonite) is an aqueous clay mineral montmorillonite based. The chemical composition of montmorillonite as: (Al2, Mg3) Si4O10 OH2 · nH2O, because of its special properties. Such as swelling, adhesion, adsorption, catalysis, thixotropy, suspension and cation exchange. It is widely used in various industrial fields.

Bentonite is non-metallic mineral montmorillonite as the main mineral composition, the structure of montmorillonite is 2:1 type crystal structure consists of two silicon oxygen tetrahedron sandwiching a layer of alumina in eight face bentonite composition, due to the layered structure of montmorillonite crystal formation in the presence of some cations, such as Cu, Mg, Na, K, and these cationic and montmorillonite lattice effect is very unstable, easily by other cation exchange, it has good ion exchange. Abroad has been in the industry and agriculture production more than 100 departments in 24 fields of application, there are more than 300 products, so people called the “universal soil”.

Bentonite is also called bentonite, bentonite and bentonite. History of China’s development of the use of bentonite is long, just as a detergent. (Sichuan Renshou area hundreds of years ago in open-pit mine, the locals of bentonite clay powder). Really is widely used but only a hundred years of history. USA was first discovered in the ancient stratigraphic Wyoming, green yellow clay, the water after the expansion into paste, then people will take all the properties of bentonite clay, collectively referred to as. In fact, the main mineral component of bentonite is montmorillonite, content of 85-90%, some properties of bentonite are also determined by the montmorillonite. Montmorillonite can be a variety of colors such as yellow green, Huang Bai, gray, white and so on. Can a dense block, but also loose earth sometimes, when you rub it with your fingers with smooth feel, small body after adding water volume swell several times to 20-30 times, is suspended in the water, when water is little mushy. The properties of montmorillonite and the chemical composition and its internal structure.

Bentonite

The bentonite interlayer cations depends on the type of bentonite type, interlayer cation is Na+ called sodium bentonite; interlayer cation is Ca2+ called calcium base bentonite; interlayer cation is H+ called hydrogen bentonite (activated clay, natural bleaching soil acid clay); interlayer cation organic cation organic bentonite.

Bentonite is a kind of clay, montmorillonite clay rock or rock, often containing a small amount of illite, kaolinite, halloysite, chlorite, quartz, feldspar, zeolite, calcite; usually white, pale yellow, due to changes in iron content is light gray, light green, pink, brown red, brick red, black etc.; with wax, earthy or oil sheen; bentonite some loose soil, there are dense and hard. The main chemical composition is three silica, two aluminum oxide and water, also contain iron, magnesium, calcium, sodium, potassium and other elements, Na2O and CaO content on properties of physical and chemical properties of bentonite and technology influence. Montmorillonite belongs to monoclinic system, usually it is earthy block, white, sometimes reddish, greenish, yellowish color. Luster dim. Hardness of 1 ~ 2, density of 2 ~ 3g/cm3. Type, content and layer charge of montmorillonite according to the size of the exchangeable cation, bentonite can be divided into Na bentonite (alkaline soil), calcium base bentonite (alkaline soil), natural bleaching earth (acidic soil or clay acid), in which calcium bentonite and sodium calcium base and calcium and magnesium based etc.. Bentonite has strong hygroscopic and expansion, water adsorption can be 8 to 15 times their size, the volume expansion of up to two to 30 times; can be dispersed into gelatinous and suspended in water medium, the medium solution with viscosity, degeneration and some lubrication; strong cation exchange capacity; for various gases, liquids, organic matter has certain adsorption capacity, the maximum adsorption capacity of up to 5 times its own weight; it with water, mud or sand blends with plasticity and cohesiveness; acid bleaching soil with surface activity (active white soil, natural bleaching soil acidity clay can adsorb colored ion).

Bentonite has strong moisture absorption, can absorb the equivalent volume 8 20 times of water and swells to 30 times; can be dispersed colloidal suspensions in water medium, and has a certain viscosity, thixotropy and lubrication, the admixture of bentonite and silt has plasticity and cohesiveness, strong cation exchange capacity and adsorption capacity.

The naked eye identification, high-quality bentonite was pure white, generally have gray or no yellow white, often due to water or containing impurities are pale green, pale green, rose red color. After drying is pure white, gray or pale yellow white. In section is not smooth hand after the break, but a jelly. There are oil sheen, hand touch with smooth feel. Can water swelling, good can become colloid. If long-term dry moisture loss, and can become loose. Bentonite has strong ion exchange capacity, so it can be adsorbed or absorbed a variety of colors. It can make the oil and oil mixed, more smooth. Suspension of fine powder of its water, dispersion (divergence) is very good, not easy to precipitate. The natural bentonite type, mainly by the relative content of montmorillonite cation species divided into calcium, sodium, hydrogen, Lithium Montmorillonite, such as the calcium montmorillonite based clay called calcium base bentonite. Most of bentonite ore in China in the production of calcium base bentonite, calcium base bentonite sodium bentonite is cheap, and easily, so we in the broiler and layer test, are calcium base bentonite. With the addition of bentonite feeding chickens, because good palatability, chicken to eat.

But only by the naked eye, sensory evaluation is not accurate. There is no uniform identification of bentonite in China National standard. The majority of mine to execute a machine on the “casting bentonite, a clay ministerial standard” (1997) and enterprise standards. The main absorption of blue, water, colloid medium, pass rate, wet strength, expansion coefficient, pH value, determination methods and standards here omitted.

The county more than bentonite plant has more than 20, and do the bentonite plant has more than 100, the vast majority of provinces (autonomous regions) are. Most of the county (city) building materials company or goods shopping malls have bentonite. Market town where the foundry factory usually with bentonite, less dosage can contact them, but must pay attention to quality.

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The performance of applications and products about Decolourising earth

Performance description Decolourising earth

This product is made of attapulgite clay special activation process, is an important auxiliary oil industry, daily chemical industry, petrochemical industry, has a high chemical activity and high adsorption Kong Rong, can be used as adsorbents, catalysts, bleaching agent, commonly used in the decolorization of animal and vegetable oils, oil, resin, wax, natural soda purification; separating olefins aromatics and alkanes; industrial waste oil recycling, petroleum cracking, olefin polymerization catalyst, carbonless paper color and monosodium glutamate, beverage, glucose, vitamins, all kinds of oil adsorption. Also can be used as a desiccant, sewage treatment agent, cleaning detergents etc..

Product features: high removal rate, low rate of oil, filtration speed, low content of free acid. Can completely remove oil in aflatoxin, phospholipids, soap and odor. The main technical indicators have reached and exceeded the standard of HG/T2569-94, close to the international advanced level.

Performance characteristics:

This product is the use of non metallic mineral resources of rare &#65533 China; D� D composite clay as raw material, through special processing is made. The appearance of grey white powder, insoluble in water, oil and organic solvent. With higher efficiency, fast filtration velocity, residual oil rate is low.

The product can greatly reduce oil production costs, compared with similar products, the amount can be reduced by about 5%, the residual oil and the filtering speed, reduce the rate of filter cake. Can completely replace the activated carbon and activated clay. New decolorization products is a good performance, low price.

Product use

1, for the removal of animal and vegetable oil in a variety of colors, phospholipids, glial, soap and other substances. Bleached oil clean, transparent and stable quality.

2, with specific adsorption, adsorption to 100% vegetable oil in the strong carcinogen, aflatoxin B1 (AFTB1), 3, 4 – benzene Rui pyrene, ensure the health and safety indicators of edible oil.

3, water purification and sewage treatment

Product features

1, have a wide range of decolorization, adsorption and purification capacity, strong stability in application. Have a strong adsorption of pigments and impurities, the decolor pigments in plant oil rate of more than 95%.

2, the use of this product is simple, no need to change the original production process of oil production enterprises. Oil acid value and decoloring and low, not rise, saves the dehydration process.

The cake 3, filtered (vegetable oil, animal fat) can be renewable, no pollution to the environment.

Process conditions when using

Decolorization temperature: 115 ~ 120 ℃ decolorization time: 20 ~ 30 minutes product index

The decolorization rate: 85 ~ 90% (AOCS): < 0.2% free acid

Moisture: < 10% fine degree: -200 >90%

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The formation and properties of bleaching clay

The performance of adsorption and by bleaching clay has large surface area, high, from bentonite by activating (acidification) made after processing. Bleaching clay world market sales of about 860000 t/a, of which 70% ~ 80% for edible oils and fats industry. The development of bleaching clay by effects of edible oil industry development the biggest.

Clay is mainly composed of aluminous rocks, such as feldspar, pegmatite granite, porphyry, gneiss through long-term weathering, and often through the water transport and deposition, is a variety of fine mineral mixed body, its main chemical composition is SiO2, Al2O3 and crystal water. With the geological formation conditions are different, also contain a small amount of alkali metal oxide, alkaline earth metal oxide and metal oxides.

More types of main minerals in clay, kaolin clay can be divided into Tu, illite and smectite clay and clay. According to the production conditions, the clay can be divided into primary clay (Primary clay) and secondary (Secondary clay), a native of clay is feldspar weathering generated kaolin and other aqueous silicate minerals, quartz and other debris, not completely weathered residual in situ, and soluble salts are dissolved; secondary clay is composed of primary clay transfer to other places again crystalline clay in the natural dynamic conditions. According to the plasticity of the clay can be divided into soft clay (high plasticity clay), semi soft clay (plasticity clay) and hard clay (low plasticity clay), soft clay are secondary clay, because of its fine particle size, large dispersion, the plasticity; the hard clay the diagenesis, the free water is not easy to enter and the lack of leaching dispersion, poor plasticity. Use of refractory book called clay, it is divided according to the clay image, and the corresponding: ceramic clay, bleaching clay, paper clay and cement clay.

Nature

The crystal structure and crystal chemistry characteristics determine the nature of some of their. The ion exchange. Some characteristics of cation and anion adsorption and keep the exchange state. General cation is Ca2+, Mg2+, H+, K+, (NH4) +, Na+, exchangeable anion is common (SO4) 2-, Cl-, (PO4) 3-, (NO3) -. Kaolinite cation exchange capacity was lowest, 5 to 15 mEq /100 g; cation exchange capacity of montmorillonite, vermiculite, 100 to 150 mEq /100 G. The cation exchange is the cause of the broken bond and lattice isomorphous substitution caused by unsaturated charge need to have balanced by adsorption of cationic. Anion exchange is the metasomatism lattice exposed hydroxyl ions. The characteristics of the clay water system. The presence of clay minerals in the water to absorb water, interlayer water and structural water in the form of. Structure of water losing only in the destruction of high temperature structure, but the adsorbed water, interlayer water and the structure of sepiolite porous zeolite in water is low, the low temperature (100 ~ 150 ℃) after heating can emerge, at the same time as the smectite mineral water can also be water recovery, this is an important the characteristics of. The clay minerals and the role of water swelling, dispersing and condensation characteristics, viscosity, thixotropy and plasticity is widely used in the industry. The reaction characteristics of the clay minerals and organic matter. Some clay minerals and organic reaction for the formation of organic complexes, improved its performance, expanded the scope of application, and also can be used as a basis for analysis and identification of minerals. Such as montmorillonite in exchangeable calcium or sodium is organic ion replacement after the formation of organic complexes, which increases the distance between layers, from the transformation of the original hydrophilic oleophobic as dear oil hydrophobic, the complex can be prepared by grease, paint additives, anti settling agent and petrochemical products. Other such as vermiculite, kaolinite, halloysite etc. can also form complexes with organic matter. In addition, clay mineral Lattice Ion Replacement and interlayer water changes often affect the change of optical properties. Iron, magnesium ion replacement eight octahedral smectite mineral in aluminum, lose or interlayer water molecules, the refractive index increases and birefringence.

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The performance of application and applicable scope Bleaching earth

Bleaching earth refers to any fine, natural output, high adsorption rate of soil like material, has the ability to absorb impurity from fat, grease or oil or colored substance. Bleaching clay is also called activated clay, activated attapulgite clay soil, adsorption, decolorization, adsorbent, decolor etc.. Bleaching clay is mainly distributed in India, Sri Lanka, france.

Bleaching earth refers to any fine, natural output, high adsorption rate of soil like material, has the ability to absorb impurity from fat, grease or oil or colored substance. Bleaching clay is also called activated clay, activated attapulgite clay soil, adsorption, decolorization, adsorbent, decolor etc.

Bleaching earth using high-quality natural nonmetallic minerals — attapulgite clay as the main raw material, supplemented by scientific formula, through special processing technology from refining, apparent greyish white or light yellow powder, is the ideal substitute of activated carbon.

Bleaching earth with decolorization performance widely, decolorizing capacity greatly, has strong adsorption and purification capacity, has the strong sorption on pigment, impurity.

Bleaching clay has strong stability in the application, and the application is convenient, safe, no change of the original production process production enterprise.

Bleaching earth filter cake after the use of renewable, no pollution to the environment.

Bleaching earth decolorization rate is high, the low rate of oil, filtration speed, low content of free acid

Properties of bleached soil

1, strong adsorption capacity, the decolorization rate high, with a low rate of oil, filtration speed, add less;

2, can effectively remove oil total phospholipid, soap and trace metal ions, can be used as natural antioxidants;

3, to remove the oil in aflatoxin, pesticide residues and other toxins and odor;

4, after bleaching not rise, do not back color, clear and transparent, stable quality, long shelf life.

5, especially suitable for mineral oil, vegetable oil, animal oil.

Scope of application of bleaching clay

The vegetable oil, mineral oil, animal oil, enzyme, monosodium glutamate, sugar, alcohol, polyether, adsorption. In the chemical industry, environmental protection and other industries for filtering agent, catalyst, adsorbent, desiccant, deodorant agent, water treatment agent, water treatment agent, bleaching agent.

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Introduction of products, performance of Activated bleaching earth

Activated bleaching earth is a clay (mainly bentonite) as raw material, the inorganic acid, followed by water rinsing, drying adsorbent made of, look for the milky white powder, odorless, tasteless, non-toxic, strong adsorption, can adsorb colored material, organic matter. Easy to absorb moisture in the air, place too long will reduce the adsorption properties. However, heated to 300 degrees Celsius above began to lose water of crystallization, the structure changes, effects of fading effect. Activated clay is insoluble in water, organic solvents and oils, almost completely soluble in hot caustic soda and hydrochloric acid, the relative density of 2.3 ~ 2.5, in water and oil swelling minima.

Mainly white and pink, odorless and tasteless, non-toxic, good activity, strong adsorption, easy to absorb moisture in the air, such as placing too long or moisture will reduce its adsorption function, the use of appropriate heating (80 to 100 degrees) resurrection, if heated to 300 degrees above began to lose water of crystallization, itself changes in the structure, affecting decolorization.

Performance

1, selective adsorption ability, the decolorization rate high, with a low rate of oil, filtration speed, add less;

2, effectively remove grease total phospholipid, soap and trace metal ions, is a natural antioxidant;

3, removal of oil in aflatoxin, pesticide residues and other toxins and odor;

Acid number 4, after bleaching not rise, do not back color, clear and transparent, stable quality, long shelf life.

Refining production 5, especially suitable for mineral oil, vegetable oil, animal oil.

Range of use

Animal and vegetable oil refining, for the decolorization and purification, remove harmful pigment, oil phospholipid, saponin, cotton acid, making high-grade edible oil.

In the petroleum industry for refining decolorization and purification as well as petroleum cracking of paraffin wax, oil, grease, kerosene and other minerals.

In the food industry, as Wine and sugar juice clarifying agent, stabilizing, beer saccharification processing, the syrup purification etc..

In the chemical industry, as a catalyst, filler, desiccant, adsorbent, wastewater treatment.

National defense, medical health, can be made of chemical drug agents, antidote, along with the development of society and science, more and more extensive application of activated clay.

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