Attapulgite clay is attapulgite.
Also called palygorskite (Palygorskite) or palygorskite, is a layered structure of the hydrated magnesium silicate clay mineral. The structure of 2:1 type clay mineral. In each 2:1 unit structure layer, tetrahedral wafer angle top certain distance direction reversal, forming the layer chain. In the tetrahedral strips form and channel chain parallel to the channel cross section, about 3.7*6.3A degrees. Filled with zeolite water and crystal water channel in the. Is the main raw material for the production of bleaching powder.
Product characteristics of attapulgite:
1, thickening. The paint is full, open the tank with excellent results;
2, good suspension. Effectively prevent the paint, coating deposition, stratification;
3, good shake thaw. Easy populations, in under the action of shear thinning and thickening, static;
4, good thixotropy. Directly add, good compatibility, no need to change the process and formula;
5, good leveling. Shrinkproof hole and the fish eye, is not easy to flow;
6, weather resistance. With strong acid and alkali resistance, corrosion resistance and mildew resistance;
7, good heat insulating performance. High temperature resistant, heat insulation, insulation;
8, good environmental protection. Chemically inert, non polluting, inhibit microbial growth, absorption of toxic volatile components, green environmental protection
Technical parameters of bleaching clay:
1, appearance: white or light coloured fine powders.
2, bleaching activity of soil moisture (2hr.105 ° C): ≤ 12%
The decolorizing capacity: 3, ≥ 154
4, activity: ≥ 180mol/kg
5, size (0.076mm): 95%
6, the free acid (H2SO4): ≤ 0.20%
7, the content of heavy metal (Pb): 10mg/kg
8, the arsenic content: ≤ 3mg/kg
Scope of application of bleaching clay:
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.
Specifications and use bleaching clay:
Project rapid filtration special mineral oil special vegetable oil special decoloring% ≥ 90 ≥ 80 ≥ 85 free acid (H2SO4) analysis% ≤ 0.15 ≤ 0.12 ≤ 0.10 moisture% ≤ 8 ≤ 8 ≤ 8 size (-75 μ m)% ≥ 85 ≥ 85 ≥ 85 filtration rate of ml/min ≥ 4 ≥ 6 ≥
Bleaching clay is mainly distributed in India, Sri Lanka, France