闪锌矿一步法生产活性氧化锌的研究

PREPARATION OF ACTIVE ZnO BY ONE-STEP PROCESS FROM ZnS

本文研究了闪锌矿一步法生产活性氧化锌的工艺。通过添加一定量的MnO2 (或贫锰矿 )作氧化剂 ,在酸性介质中可实现闪锌矿的常压直接浸出 ,锌、锰、硫的回收率为 95 7%、 95 %和 86 9%。产品性能检测结果表明该工艺得到的活性氧化锌比表面积≥ 10 0m2 ·g-1,活性Vco+H2 ≥ 3L·g-1·h-1,且样品的比表面积与活性正比 ,与结晶度成反比。

In this paper,the technique of preparation of active ZnO by one step process from ZnS is studied.It is possible for ZnS to be directly leached in acidity condition by adding a certain amount of oxidative agent,the recovery of zinc、manganese and sulfur are 95 7%、95%and 86 9%.The properties determination shown that the samples specific surface area is proportional to its activity and disproportional to its crystallization.