Abstract:
研究了以蛇纹石为原料制取碱式碳酸镁的工艺.通过L16(44)正交试验法对酸浸过程进行研究,结果表明:在浸取温度100℃、浸取时间4h、硫酸浓度40%、液固比为4时,镁的浸取率达到98.16%.考察了以氨水和碳酸氢铵为沉淀剂制取碱式碳酸镁的工艺条件,最佳工艺条件为:预氨pH值为9.6~9.7、反应温度为40℃、镁离子与总铵(NH3+NH4+)摩尔比为0.46、氨与碳酸氢铵摩尔比为1.4.在最佳工艺条件下,镁的沉淀率达到最大值89%.
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Year: 2010
Page: 1-6
Language: Chinese
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WanFang Cited Count: -1
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30 Days PV: 12
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