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1708834 
Journal Article 
Preparation of lead sulfate powder directly from galena concentrates 
Qin Wen-qing; Liu Hui; Tang Shuang-hua; Sun Wei 
2009 
1 
Transactions of Nonferrous Metals Society of China
ISSN: 1003-6326 
19 
2 
479-483 
WOS:000265073000037 
A new approach to prepare PbSO(4) powder is studied. Using the methods of the leaching of galena concentrates in the ferric chloride media, selective purification and chemical sedimentation, PbS concentrate can be converted into PbSO(4). The conversion recovery is 97.39%, the purity of PbSO(4) powder is above 99% and its average crystallite size is about 42 nm. In this process, emission of lead vapour and SO(2) cannot occur. The experimental results demonstrate the feasibility of realizing a green route to prepare the lead sulfate powder. 
lead sulfate; galena; preparation; leaching; purification