陕西韩城矿区11^#煤层中高岭岩矿研究

Study of kaolinite deposit within coal bed No.11 in Hancheng mining area,Shaanxi

通过野外调查和室内研究 ,查明韩城矿区 11# 煤层底板 (南区 )和煤层中、下部 (北区 )有一层厚 0 6 0～ 1 30m的高岭岩矿层。其厚度稳定 ,储量丰富 ,为一大型高岭岩矿床。矿石成分纯 ,高岭石含量在 95 %以上 ,Al2 O3 含量高 ,SiO2 含量低 ,TiO2 含量较高 ,Fe2 O3 含量低至较高。可作为生产超细煅烧高岭土及 4A分子筛等产品的原料 。

On the basis of a great deal of field investigation and indoor study,it is ascertained that a layer of kaolinite deposit in thickness of 0.60～1.30 meters occurred in floor of coal bed No.11 in southern district and in mid-lower part of coal bed No.11 in northern district in Hancheng mining area.This layer of kaolinite is characterized by stable thickness and plentiful reserves,being a large-scale kaolinite deposit with pure of ore composition,over 95% kaoline content,high Al 2O 3 content,lower SiO 2 content,higher TiO 2 content and low to high Fe 2O 3 content.The research shows that the kaolinite layer in Hancheng can be used as the raw material for producing ultra fine calcination kaolin and 4A molecular sieve,etc.