MANUFACTURING METHOD OF PARTICLE-SIZE HIGH GRADE ALUMINIUM SILICATE FROM KAOLINITE BY REDUCTION SINTERING METHOD

摘要

The present invention is to separate the fine kaolin and plagioclase (calcite feldspar) and quartz, such as mined domestic kaolinite, dry and crushed mined kaolinite, and separated through a sieve, the granulated product of more than 150 mesh By refining and pulverizing, powders of 300 mesh or more and 150 mesh or less are used for glass raw materials and feeds, and powders of 325 mesh or less are manufactured as industrial powders, which can be used for rubber, plastic atstyle and general plastic fillers. The fine-grained product of 150 mesh or less among the products for which the product is manufactured and the ore is pulverized is finely pulverized after magnetic screening and manufactured into fine powder having an average particle size of d ₉₀ = 6.2 μm and d ₅₀ = 2.0 μm. It is characterized in that it is made of a hiding rate improving filler for paint by improving the physical properties of the powder by reducing firing at ℃.