重晶石熟料水浸过程的研究  

Study on the Water Leaching Process of Barite Black Ash

作　　者：廖裕辉 张煜[1] 陈琨[1] 王艳书 林小化 LIAO Yuhui;ZHANG Yu;CHEN Kun;WANG Yanshu;LIN Xiaohua(College of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, China;Guizhou Tianwei Building Materials Technology co., LTD, Guiyang 550009, China)

机构地区：[1]贵州大学化学与化工学院,贵州贵阳550025 [2]贵州天威建材科技有限责任公司,贵州贵阳550009

出　　处：《矿产保护与利用》2018年第6期55-59,共5页Conservation and Utilization of Mineral Resources

摘　　要：对水浸过程中影响Ba S溶出的可能反应进行热力学分析,考察了浸取温度、浸取时间、液固比对水溶性钡存在形式的影响。结果表明:增加液固比、浸取温度可有效提高Ba S的浸取率;浸取过程中部分溶出的钡会生成水不溶性钡,水不溶性钡总生成率随着浸取温度、时间的增加而增加,随着液固比的增加而降低水。当浸取温度为55℃、浸取时间为60 min、液固比为60时,Ba S的浸取率为90. 13%,Ba S的残留率为4. 27%,Ba Si O3的生成率为3. 14%,Ba CO3的生成率为1. 24%,在该工艺条件下Ba S有较高的浸取率、较低的残留率及较低的水不溶性钡生成率。Thermodynamic analysis of reactions affecting the dissolution of BaS during water leaching,and the effects of leaching temperature,leaching time,and liquid-solid ratio on the presence of water-soluble barium were investigated.The results show that increasing the liquid-solid ratio and leaching temperature can effectively increase the leaching rate of BaS.Part of the dissolved barium will generate water-insoluble barium,and the total formation rate of water-insoluble barium increases with the increase of the leach temperature and time,and decreases with the increase of the liquid-solid ratio.When the leaching temperature is 55℃,the leaching time is 60min,and the liquid-solid ratio is60,the leaching rate of BaS was 90.13%,the residual rate of BaS was 4.27%,formation rate of BaSiO3 was 3.14%,formation rate of BaCO3was3.14%,BaS has higher leaching rate,lower residual rate and lower water-insoluble helium formation rate under the process conditions.

关 键 词：硫化钡 水浸 热力学 浸取率 重晶石 

分 类 号：TQ132.3[化学工程—无机化工]