贵州省重晶石矿的矿物学特征及开发利用建议  

Mineralogical Characteristics and Application of of Barite in Guizhou Province

作　　者：余文波[1] 杨鼎忠 张曦月 孙红娟[2,3] 曾鹂 YU Wenbo;YANG Dingzhong;ZHANG Xiyue;SUN Hongjuan;ZENG Li(China Building Materials Industrial Geological Exploration Center Guizhou Group,Guiyang 550000,Guizhou,China;Education Ministry Key Laboratory of Solid Waste Treatment and Resource Recycle,Southwest University of Science and Technology,Mianyang 621010,Sichyan,China;Institute of Mineral Materials and Application,Southwest University of Science and Technology,Mianyang 621010,Sichyan,China)

机构地区：[1]中国建筑材料工业地质勘查中心贵州总队,贵州贵阳550000 [2]西南科技大学固体废物处理与资源化教育部重点实验室,四川绵阳621010 [3]西南科技大学矿物材料及应用研究所,四川绵阳621010

出　　处：《矿产保护与利用》2022年第4期143-152,共10页Conservation and Utilization of Mineral Resources

基　　金：贵州省自然资源厅项目(2021-09)。

摘　　要：贵州素有“重晶石之乡”的美誉,重晶石矿探明资源储量高达1.24亿t,占全国重晶石探明资源储量的34%,居我国首位。对贵州省重晶石矿的矿物组成、化学成分、白度、硬度、密度、热学性能和耐酸碱性能等进行了研究,探讨了各地区重晶石矿的开发利用途径。结果表明,贵州省镇宁县、天柱县、麻江县、凯里市四处的重晶石矿样品中,BaSO_(4)含量均在80%以上,矿石中的主要脉石矿物为石英、白云石、方解石等,其中,麻江县和凯里市重晶石矿白度高,酸浸—焙烧后用作精细重晶石粉和化工相关行业;麻江县重晶石矿密度大,可作为钻井用重晶石;天柱县重晶石矿纯度最高,杂质最少,可直接用于化工相关行业;镇宁县重晶石矿样品中SiO_(2)较高,需除硅后再考虑其工业应用。Guizhou is known as the“hometown of barite”,whose proven barite reserves are as high as 124 million tons,accounting for 34%of China’s proven barite reserves,ranking first in China.In this paper,the mineral composition,chemical composition,whiteness,hardness,density,thermal properties and acid and alkali resistance of barite ore in Guizhou province were studied,and the suggestions for the development and utilization of barite ore in various regions were put forward.The results showed that the content of BaSO_(4) was more than 80%in the barite ore in Zhenning County,Tianzhu County,Majang County,Guizhou Province.The main gangue minerals in the ore were quartz,dolomite,calcite,etc.Among them,the barite in Majang and Kaili had high whiteness,which was used as fine barite powder and chemical industry after acid leaching and roasting.The barites in Majiang had high density and could be used as barite for drilling.The barite in Tianzhu had the highest purity,the least impurities,could be directly used in the chemical industry.The content of SiO_(2) in Zhenning samples is high,and its industrial application should be considered after silicon removal.

关 键 词：重晶石矿 矿物学特征 开发利用 贵州省 

分 类 号：TD91[矿业工程—选矿] TD985