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

摘要: 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≥ 100m² ·g^-1,活性V_co+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。

Abstract: 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.