Hunan Kaolin Resource Type And Low-quality Kaolin, Development And Utilization Of Research

Kaolin is one of the three mineral materials in the world, was widely applied due to its many excellent physical, chemical performances. On the base of analyzing systhetically the characters of main kaolin deposits types in China,ploted out and summarized the types of kaolin deposits and characters in occurences in Hunan,and researched systematically the mineralogical characters of different types of kaolin deposits. The paper also carried through the analysis of utilization approaches, obtained the corresponding using directions, and carried through finally the utilizing experiments on the coal gangue of Qianyang coal series in Qingfeng mine Changde, the main productions and conclusions have achieved as following:1 .The type of ancient Karst cave-filling was firstly discovered and investigated in the region of Changtianwan-Xianrenwan in Chenxi county,and enriched the types of kaolin deposits in Hunan.2.On the base of the main types of kaolin deposits in China,the paper researched systematically the kaolin deposits in Hunan,and compartmentalized the four main types, such as weathering residual type, ancient Karst cave- filling type , coal bearing fabricative sedimentary type, the chipping fabricative sedimentary type,and pointed out the coal bearing fabricative sedimentary type located the four coal series strata ofCeshui, Longtan, Qianyang, Shimenkou.3. The mineralogical characters of ancient Karst cave-filling type, coal bearing fabricative sedimentary type kaolin deposits in Hunan were firstly researched by the means of XRD, SEM, FTIR and TDA-TG analysis,which indicated the mineralogical characters of kaolin deposits in Hunan were mainly controlled by the terrain , strata , structure , magma activity , metamorphic processing .4.Comprehensive research suggested abroad utilization directions of kaolin resource possessed in Hunan, with low level integrating using type and high level deep processing using type,and varied with the different types.5. The paper adopted acid lixiviating and hydrothermal method to prepare and systhesis Polymeric Aluminum Chloride Flocculant and A molecular sieve by using the coal gangue of Qingfeng in Changde ,obtained preferably effect,and confimed primarily the technical flows and parameters, which provided the strongly technological sustainment for the future industrialization.