生产条件对碱式碳酸镁产率影响的试验研究

Study on the Impaction of Production Condition on the Basic Magnesium Carbonate Yield

用小苏打与氯化镁制备碱式碳酸镁,通过单因素分析,逐次分析了氯化镁、小苏打浓度、反应温度、氯化镁和小苏打的物质的量比对产品产率的影响。试验结果表明:氯化镁浓度为1.19 mol/L,碳酸氢钠浓度为1.28 mol/L,反应温度为68℃,小苏打与氯化镁物质的量之比为2.4∶1,产品产率为96.63%。

In order to look for the optimal technology condition of improving yield in the production of basic magnesium carbonate using magnesium chloride and sodium bicarbonate as a raw material by direct precipitation method,impaction of various factors on the product yield has been studied by orthogonal experiment in this paper,such as the concentration of magnesium chloride,the concentration of sodium bicarbonate,the ratio of magnesium chloride and sodium bicarbonate,reaction temperature.The best reaction condition is drawn:with 1.19 mol/L of magnesium chloride,1.28 mol/L of sodium bicarbonate,reaction temperature is 68℃,the ratio of sodium bicarbonate and magnesium chloride is 2.4∶1,product yield could reach more than 96.63%.