膨润土的改性及吸湿性能研究  

Modification and Humidity Adsorption Property of Bentonite

作　　者：苏成政 SU Cheng-zheng(Qipanjing Coal Preparation Plant,Guoneng Mengxi Coal Chemical Co.,Ltd.,Eerduosi 016100,China)

机构地区：[1]国能蒙西煤化工股份有限公司棋盘井选煤厂,内蒙古鄂尔多斯016100

出　　处：《中国非金属矿工业导刊》2023年第3期55-57,60,共4页China Non-Metallic Minerals industry

摘　　要：本文总结了潍坊、莱西、寿光三地的钙基膨润土吸湿性能的研究结果,并分析了三者分别进行钠化、酸化改性后,在不同相对湿度下吸湿率的变化情况,最终得出钠化改性会降低膨润土的吸湿率,并在低湿度条件下作用明显,而酸化改性会提高其吸湿率,并在高湿度条件下作用明显,且最佳改性酸度为15%。The results of humidity adsorption of calcium basis bentonite from Weifang,Laixi and Shouguang were summarized and the variation of humidity adsorption rate at different relative humidity after sodium and acid modification were analyzed.It is found that sodium modification would reduce the humidity adsorption rate of bentonite especially at low relative humidity,whereas acid modification could improve humidity adsorption rate of bentonite and the improvement was more significant at high humidity.Additionally,the optimum acid concentration for acid modification was 15%.

关 键 词：膨润土 干燥剂 吸湿率 钠化改性 酸化改性 

分 类 号：P619.255[天文地球—矿床学] TQ330.38[天文地球—地质学]