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一、前言附液浓度理论曾经成功地用于“易溶产品中易溶杂质的精制方法”。解决了当时生产实践中所遇到的LiOH产品含杂质NaOH与KOH高的问题。现在又把把它应用于“盐类分离技术”,有效地解决了沉锂母液中Li_2CO_3与Na_2SO_4;Li_2SO_4与Na_2SO_4等盐类的分离问题。为1987年锂辉石硫酸法生产工艺的突破性改进提供了可靠的理论依据。实践已经证实这项理论不仅能够用于产品的精制;也可用于盐类的分离。盐类的分离,通常是利用各种盐类的溶解度不用而把它们分开。当溶解度相差很大的盐
I. Introduction Preconcentration concentration theory has been successfully used in “soluble products soluble impurities refining method.” Solve the production practice encountered LiOH products containing impurities NaOH and KOH high problem. Now it is applied to “salt separation technology”, which effectively solves the separation problem of Li_2CO_3 and Na_2SO_4; Li_2SO_4 and Na_2SO_4 salts in the mother liquors. It provides a reliable theoretical basis for the breakthrough improvement of the spodumene sulfuric acid production process in 1987. Practice has proved that this theory can not only be used for product purification; also be used for salt separation. The separation of salts is usually done using the solubility of various salts without separating them. When the solubility is very different salt