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1、第30卷第5期礦冶工程V01．3O№52010年10月MININGANDMETALLURGICALENGINEERING0ctober2010氧化錳礦泥浸出液除雜凈化和產(chǎn)品制備試驗(yàn)研究①鄭文軍，沈慧庭，郭克非(廣西大學(xué)資源與冶金學(xué)院，廣西南寧530004)摘要：選取硫鐵礦、玉米稈和廢糖蜜作為還原劑對(duì)廣西某氧化錳礦泥進(jìn)行還原浸出，在錳浸出率都達(dá)到95％以上的條件下，對(duì)3種浸出液采用部分水解針鐵礦法除鐵、硫化法除重金屬，除雜凈化后液用于制備硫酸錳或碳酸錳。結(jié)果表明，以硫鐵礦為還原劑的錳浸出液鐵離子較易除去，玉米稈次
2、之，廢糖蜜較難，3種不同還原劑的浸出液除鐵率分別為99．98％，99．91％、和99．48％；在相同凈化條件下，3種不同還原劑的浸出液除重金屬凈化效果并無(wú)明顯差異，均能達(dá)到很好的除雜效果；以硫鐵礦為還原劑的錳凈化液可制得合格的工業(yè)級(jí)硫酸錳產(chǎn)品，以玉米稈和廢蜜糖為還原劑難以制得合格的硫酸錳產(chǎn)品。3種還原劑的錳凈化液都可制成合格的碳酸錳產(chǎn)品，產(chǎn)品級(jí)別硫鐵礦還原時(shí)優(yōu)于玉米稈、廢糖蜜，最終錳的回收率分別為88。37％、82．56％和81．71％。關(guān)鍵詞：氧化錳礦泥；硫鐵礦；玉米稈；廢糖蜜；除雜凈化；硫酸錳；碳酸錳中圖分
3、類(lèi)號(hào)：TFI11文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：0253—6099(2010)05—0o9O一06ExperimentalStudyonImpurityRemovalandPurificationofLeachingLiquidofManganeseOxideSlimeandProductPreparationZHENGWen-jun，SHENHui—ting，GUOKe—fei(SchoolofResources&Metallurgy，GuangxiUniversity，Nanning530004，Guangxi，C
4、hina)Abstract：ReductionleachingforsomemanganeseoxideslimefromGuangxiwasconductedbyselectingpyrite，cornstalkandblackstrapmolassesasreductants．Undertheconditionsthattheleachingrateofmanaganesereachedabove95％，ironremovalbypaaiallyhydrolyticgeothiteprocessandhea
5、vymetalsremovalbysulphidizingprocesswereconductedforthroeleehingliquid，andtheliquidafterimpurityremovalandpurificationwasusedtopreparemanganesesulfateandmanganesecarbonate．Theresultsshowedthatironionsinmanganeseleachingliquidusingpyriteasreductantweroeasytor
6、emove，constalkwasthesecondandblackstrapmolasseswasdifficulttoremove．Theironremovalratioofleachingliquidofthreedifferentreducrnswas99．98％，99．91％and99．48％，respectively．Theleachingliquidofthreedifferentreduc—rantscanreachgoodefectsofimpurityremovalandthepurific
7、ationeffectsofremovingheavymetalshadnosignificantdifferenceunderthesamepurificationconditions．Qualifiedindustrialgradesulfatemanganeseproductscanbeproducedfrommanganesepurifiedliquidusingpyriteasreductant，butitisdifficulttoproducequalifiedsulfatemanganesepro
8、ductsusingcornstalkandblackstrapmolassesasreductant．Qualifiedmanganesecarbonatecanbepreparedusingmanganesepurificationliquidofthreereductants，andtheproductgradewasbetterthanthatofcomstalkandblac
