磷尾矿制备硫酸镁试验研究

发布时间：2018-03-05 04:36

  本文选题：高镁磷尾矿　切入点：硫酸镁　出处：《非金属矿》2017年01期 　论文类型：期刊论文

【摘要】：采用工业盐酸分解高镁磷尾矿并制备硫酸镁产品,对酸解条件、酸化条件及浓缩比例进行试验研究。结果表明,工业盐酸与磷尾矿质量比2.25、反应时间20 min、反应温度60℃时,分解率最高;当浓硫酸质量分数98%时,除钙效果更佳;将酸化滤液进行1次浓缩比例0.65、2次浓缩比例0.20,得到七水硫酸镁产品,可达到国家行业标准一等品要求。该工艺可避免环境污染,节约资源,具有潜在的经济价值。
[Abstract]:Industrial hydrochloric acid was used to decompose high magnesium phosphate tailings and to prepare magnesium sulfate products. The acid hydrolysis conditions, acidification conditions and concentration ratio were studied. The results showed that the mass ratio of industrial hydrochloric acid to phosphorus tailings was 2.25, the reaction time was 20 min, and the reaction temperature was 60 鈩，

本文编号：1568791