某含锌铅锡矿粉灰元素分离及其产品制备工艺研究

发布时间：2018-04-09 15:54

  本文选题：含锌铅锡矿粉灰　切入点：硫酸锌　出处：《矿产综合利用》2017年02期

【摘要】：硫酸锌和硫酸铅均是用途广泛的化工产品。本文以含锌铅锡矿粉灰为原料,提出了一条由含锌铅锡矿粉灰制备硫酸锌、硫酸铅的工艺路线。分别研究了碱溶、酸溶及先碱溶后酸溶的处理方法,重点研究了碱溶的最佳工艺条件,具体为6 mol/L氢氧化钠体积为20 m L、反应温度为65℃、反应时间为30 min、沉淀铅离子的硫酸浓度为3 mol/L,结果表明:采用碱溶工艺,实现锌、钡与锡的有效分离,产品外观好,品质好,成本低廉。该工艺具有工艺简单、生产成本低、附加值高、三废少等优点,对类似矿粉灰分离及其产品制备具有一定的借鉴作用。
[Abstract]:Zinc sulfate and lead sulfate are widely used chemical products.In this paper, a technological route for the preparation of zinc sulfate and lead sulfate from zinc lead-tin powder ash is proposed.The treatment methods of alkali dissolution, acid dissolution and first alkali dissolution were studied, and the optimum technological conditions of alkali dissolution were studied. The specific conditions were as follows: the volume of sodium hydroxide for 6 mol/L was 20 mL, and the reaction temperature was 65 鈩，

本文编号：1727104