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Sepiolite is a silicate clay mineral in fibre which is rich in mangnesium, and it is also called mangnesiumand silicate mineral in moisture chain layers.lt can be divided into soil sepiolite(stereoplasm sepiolite) comingfrom deposition and massiveness seoiolite (light sepiolite) coming from hydrothermai deposit. The specific gravity of the lightness is 2-2.3,hardness is 2-2.5.poisonless and odourless, it is harmless topeople. lts melting point is 1500-1700, so it’s heat resistant. It is low in contraction,but high in placticity. lt dis-solves in hedrochloric acid. lt is insulant and salt resistant,etc.
Chemical composition:
Composition
Al2sub>O3(%)
Fe2O3(%)
Ca2sub>O (%)
Mn2O (%)
Gap (%)
pulp (%)
Decoloration (%)
Activated decoloration
(%)
40-45
0.2-2.2
0.3-2
2.5-20
17-25
32-48
60-105 m3/t
10-15
35-55
Main Uses:
lt can be used to purify oils, to make medical casing, to make organic coolant in refining atomic reactor, to absorbradioactive waste.The processed sepiolite mixed with some active carbon is an ideal material in making filtertip of cigaretes. Mixed with cement, it helps to reduce contraction and leaves no gaps and leaks no water.Added to painter,the painter can form a sediment to improve its quality. lt can be used as the fine mud material in well drilling for terrestrial heat,for petroleum and halite. lt is particularly applicable for deep well drilling. lt can be used to make soap and detergent in the place of fatty acid,to improve quality and clearance. Used as additives of cosmetics ,it can absorb bacteria. Mixed with glass fibre, sepiolite can be made into inorganic noncombustible paper. lt can be used to improve the soil as suspeded agent in fertilizers and carrier of farm chemicals.lt can also be used as additive of fodder, coherent agent, improving agenr for animals,oil-clearing agentin fodder sites,etc. lt can be used to produce original device of special pottery, atomic radiation-resistant apparatus in making atomic enerhy,rockets and satellite. lt is the raw material for fire-resisting apparatus and clothing.
