【摘要】 研究了以对苯二酚生产中副产含锰废水为原料 ,生产高纯碳酸锰的除钙工艺。该工艺主要研究了物理和化学两种形式除钙技术 ,从中优选出复合除钙剂 ,使产品中钙含量达到了GB10 5 0 3- 89Ⅰ型标准更多还原

【Abstract】 The technology of calcium-removing in the production of high-purity manganese carbonate is studied in which the manganiferous waste water from the production of 1,4-dihydroxy benzene is as raw material.The calcium removed by physical and chemical method is studied and a compound calcium removing agent is selected.The calcium content in the product can reach the National Standard GB1053-89(I).更多还原