膨润土无机凝胶制备的实验研究  

Experimental Study on Producing Inorganic Gel with Bentonite

作　　者：侯云丹[1] 孙红娟[1] 张宝述[1] 彭同江[1,2] 李真强 

机构地区：[1]西南科技大学矿物材料及应用研究所,四川绵阳621010 [2]西南科技大学分析测试中心,四川绵阳621010

出　　处：《非金属矿》2016年第1期71-74,共4页Non-Metallic Mines

基　　金：国家自然科学基金(41372052);四川省创新团队(14TD0012)

摘　　要：以广西田东提纯膨润土为原料制备无机凝胶,探索钠化及胶化条件对无机凝胶性能的影响。结果表明,钠化改性的优化条件为:以Na2CO3作为钠化剂,用量是膨润土质量的5%;胶化的优化条件:3%Ca O作为胶化剂,矿浆悬浮液质量分数5%,p H值为9,胶化时间20 min。在最佳实验条件下制备出性能优良的膨润土无机矿物凝胶。Tiandong purified bentonite was used as the raw material to prepare the inorganic gel. The sodium modification conditions and gelatinizing conditions were studied in this experiment. The experiment results showed as follows： the optimal sodium modification condition was that the conversion agent was Na2CO3 and its dosage was 5% compared to the bentonite; and the optimal gel conditions were that the gelling agent was Ca O and its dosage was 3% compared to the bentonite; the pulp density was 5%, the initial p H value was 9 and the reaction time was 20 min. The inorganic gel of bentonite with excellent performance can be prepared at the best experimental conditions.

关 键 词：膨润土 钠化 胶化 无机凝胶 

分 类 号：TD985[矿业工程—选矿]