CAJ | 학술논문

钛白粉生产过程中硫酸亚铁是其主要的副产品,硫酸亚铁的产生量大,回收利用率低成了制约钛白粉生产的＂瓶颈＂。文章目的通过采用投加一定量的氯化钙然后调节pH来回收铁的方法对钛白粉生产过程中的副产品硫酸亚铁进行综合利用的实验分析。通过研究发现：氯化钙与硫酸亚铁反应过程中在一定的搅拌强度反应一段时间后,氯化钙的最佳投加量为Ca2＋与SO42-的摩尔比1.3;氢氧化钙的最佳投加量OH-与Fe2＋物质的量之比2.4,能够将硫酸亚铁中的铁全部转化成氢氧化铁,其中氯化钙溶液在整个系统中循环利用。
태백분생산과정중류산아철시기주요적부산품,류산아철적산생량대,회수이용솔저성료제약태백분생산적＂병경＂。문장목적통과채용투가일정량적록화개연후조절pH래회수철적방법대태백분생산과정중적부산품류산아철진행종합이용적실험분석。통과연구발현：록화개여류산아철반응과정중재일정적교반강도반응일단시간후,록화개적최가투가량위Ca2＋여SO42-적마이비1.3;경양화개적최가투가량OH-여Fe2＋물질적량지비2.4,능구장류산아철중적철전부전화성경양화철,기중록화개용액재정개계통중순배이용。
Titanium dioxide prod ＂bottleneck＂ problem.The purpose of the paper by adding a certain amount of calcium chloride and adjusting the pH to recover iron of titanium dioxide in the production process for comprehensive utilization of by-product ferrous sulfate experimental analysis.Through the study found： calcium chloride and ferrous sulfate reaction process in certain stirring intensity after a period of reaction,calcium chloride is the best dosage is Ca2＋and SO42-1.3 mole ratio;calcium hydroxide optimum dosage of the OH-and Fe2＋molar ratio of 2.4,will be able to sulfate in the ferrous iron into ferric hydroxide,calcium chloride solution in the whole system of recycling.