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.
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.