电解二氧化锰中硫的化学物相分析

A Chemical Phase Analysis of Sulfur in Electrolytic Manganese Dioxide

对某电解二氧化锰产品中硫的化学物相分析方法研究,采用四氯化碳法来分离电解二氧化锰产品中的单质硫;弱酸性的氯化钠—盐酸溶液或碱性的碳酸钠作为溶剂分离电解二氧化锰产品中的硫酸盐;乙酸—过氧化氢浸取分离电解二氧化锰产品中的硫化物。某电解二氧化锰产品中各价态硫含量总和与总硫量吻合,试验证明无单质硫存在,以硫酸盐存在的硫和以硫化物存在的硫分别为13%~15%和85%~87%。

The chemical phase analysis method of sulfur in an electrolytic manganese dioxide product was discussed in this paper.Carbon tetrachloride method was used to separate elemental sulfur in the electrolytic manganese dioxide product.Weak acid sodium chloride——hydrochloric acid solution or basic sodium carbonate is used as solvent to separate sulfate in electrolytic manganese dioxide product.The separation of sulfide is from electrolytic manganese dioxide by acetic acid hydrogen peroxide leaching.The results show that there is no elemental sulfur.The sulfur in sulfate and sulfide are 13%~15%and 85%~87%respectively.