%0 Journal Article
%T DeepPurificationofZincAmmoniacalLeachingSolution
%A 李建
%A 陈启元
%A 胡慧萍
%A 王为振
%J 过程工程学报
%D 2010
%X Deeppurificationofzincammoniacalleachingsolutionbycementationusingzincdustwasstudied.Theeffectsofrelativeamountofmetallicimpurities,dosageofzincdust,purificationtime,temperature,pHvalueandtotalammoniaconcentrationinthesolutiononthepurificationofthesolutionwereinvestigated.Theresultsindicatethattotalammoniaconcentrationinthesolutionhadnoeffectonthepurification,butrelativeamountofmetallicimpurities,dosageofzincdust,purificationtime,temperatureandpHvalueofthesolutionwerethemainfactorsinfluencingthepurification.Keepingappropriatemolarratioofcoppertocadmiumornickeltocadmiumwasbeneficialtothecementationofcadmium.Nevertheless,thepresenceofcobaltwentagainstthecementationofcadmiumandcobalt.Allmetallicimpuritiescouldbedecreasedtoacceptablelevelsundertheoptimizedconditionsof2g/Lofzincdustdosage,1hofpurificationtime,35℃,pHvalue9.03ofzincammoniacalleachingsolution.Thedeeplypurifiedzincammoniacalsolutionobtainedbyone-stagepurificationmeetstherequirementsofzincelectrowinning.
%K zincammoniacalleachingsolution
%K zincdust
%K deeppurification
%K relativeamountofmetallicimpurities
%U http://www.jproeng.com/qikan/Cpaper/zhaiyao.asp?bsid=15868