常压水介质直接法洁净合成硬脂酸镁

通过采用新工艺，实现了在常压水介质中由硬脂酸与碱式碳酸镁直接反应合成色泽好的高质量硬脂酸镁．试验研完表明：反应温度、反应物料液-固质量比对合成反应速率有较明显的影响；合成优等品硬脂酸镁的适宜的工艺条件为：反应温度80℃，反应物料液-固质量比6：1，反应时间300min。与传统的复分解法工艺相比，该工艺生产效率明显提高，能耗、水耗显著下降、由于可沿用复分解法工艺的生产设备，该工艺特别适用于现采用复分解法工艺的硬脂酸镁生产企业的环保化升级改造。

Clean Synthesis of Magnesium Stearate by Direct Method in Aqueous Medium

By a speeific process, high quality magnesium stearate with good color and luster was cleanly synthesized by the direct reaction of basic magnesium carbanate with stearic acid in aqueous medium under atmospheric pressure without any additive. It was shown that the rate of the synthetic reaction was affected obviously by the reaction temperature and liquid-solid ratio of the feed, and the first rate product of magnesium stearate could be synthesized under the following conditions：reaction temperature is 80 ~ ,liquid-solid ratio of the feed is 6： 1, and reaction time is 300 min. Compared with that of traditional technology of double decomposition method, the productivity of this technology was raised and the consumption of energy and water reduced greatly. Since this process can make use of the production equipment in the double decomposition process, it can be adopted by the existing enterprises that originally using the double decomposition process to produce magnesium stearate to restructure in an environmentally friendly way.