石灰法制备氢氧化镁工艺研究

发布时间：2018-02-16 03:49

  本文关键词： 石灰乳 氢氧化镁 盐湖　出处：《无机盐工业》2017年09期 　论文类型：期刊论文

【摘要】：研究了石灰法制备氢氧化镁的工艺,即将石灰乳(氢氧化钙)作为沉淀剂,与盐湖副产水氯镁石配制的溶液进行反应制备氢氧化镁产品。研究了工艺条件对氢氧化镁产品纯度的影响,确定了获得高纯度氢氧化镁产品的最优工艺条件。优化条件:以浓度为1 mol/L的氯化钙溶液作为石灰消化的介质,石灰乳与水氯镁石配比(钙与镁物质的量比)为0.3,反应温度为30℃。
[Abstract]:The preparation of magnesium hydroxide by lime method was studied. The lime milk (calcium hydroxide) was used as precipitant. The magnesium hydroxide product was prepared by reaction with the solution of magnesium chloride, a by-product of salt lake, and the effect of technological conditions on the purity of magnesium hydroxide product was studied. The optimum technological conditions for obtaining high purity magnesium hydroxide were determined. The optimum conditions were as follows: calcium chloride solution with a concentration of 1 mol/L was used as the medium for lime digestion. The ratio of lime milk to magnesium chloride (the ratio of calcium to magnesium) is 0.3 and the reaction temperature is 30 鈩，

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