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1、第25卷第3期中國礦業(yè)Vo1.25,No.32016年3月CHINAMININGMAGAZlNEMar.2016青海夏日哈木銅鎳礦石工藝礦物學(xué)研究劉長征,楊啟安,吳樹寬,謝海林,徐修生。,于傳兵。,王治安(1.青海省第五地質(zhì)礦產(chǎn)勘查院,青海西寧810028;2.青海省地質(zhì)礦產(chǎn)勘查開發(fā)局,青海西寧810001;3.北京礦冶研究總院,北京102600)摘要:青海夏日哈木銅鎳礦石屬硫化鎳礦石,含鎳0.63~0.80,銅0.14~0.20,鈷0.025~O.028,是主要回收對象。礦石礦物組成復(fù)雜,銅礦物以黃銅礦為主,少量的墨銅礦和微量的方黃銅礦及銅藍(lán);鎳
2、礦物以鎳黃鐵礦為主,有微量的紫硫鎳礦、砷鎳礦、輝砷鎳礦及含鈷的輝砷鎳礦等}鐵礦物主要為磁鐵礦,微量赤鐵礦及菱鐵礦。銅、鎳礦物嵌布特征復(fù)雜、嵌布粒度細(xì)微,普遍被脈石礦物包裹,同時(shí)銅、鎳礦物自身相互緊密連生;礦石中含鎂脈石礦物較多,具有質(zhì)地柔軟,容易泥化,自然可浮性好,吸附能力強(qiáng)的特點(diǎn),將給銅、鎳礦物的分選帶來不利的影響。關(guān)鍵詞:銅鎳礦石;工藝礦物學(xué);礦物組成;有用礦物嵌布特征;脈石礦物中圖分類號:P616.4文獻(xiàn)標(biāo)識碼:A文章編號:1004—4051(2016)03—0136—06StudyontheprocessmineralogyofXiarih
3、amucopper-nickeloreinQinghaiLIUChang—zheng,YANGQi—an,WUShu—kuan,XIEHal—lin。,XUXiu-sheng。,YUChuan—bing。,WANGZhi—an(1.No.5InstituteofGeologicalandMineralResourcesofQinghaiProvince,Xining810028,China;2.BureauofGeologicalExplorationandMineralDevelopmentofQinghaiProvince,Xining8100
4、01,China;3.BeijingGeneralResearchInstituteofMiningandMetallurgy,Beijing102600,China)Abstract:QinghaiXiarihamudepositcopper-nickelorebelongstothenickelsulfideore,nickel0.63~0.80,copper0.14~O.2O%,cobaltcontaining0.025%~0.028,isthemainobjectofrecycling.Thedepositofcopper-nicke1or
5、eminera1compositioncomplex。coppercontentisgivenprioritytowithchalcopyrite,asmallamountoftheinkcopperandPartychalcopyriteandcopperblue;NickelmineraliSgivenprioritytOwithnickelpyrite,therearetracesofpurplesulfurnickel,nickelarsenic,faiarsenicnickelandfaiarseniccontainingcobaitni
6、ckelore,etc.Ironorearemainlymagnetite,tracehematiteandsiderite.Thedisseminatedcharacteristicsofcopperandnickelmineralsarecomplicatedwhichembeddedinsuperfineparticleandaregenerallypackedbythegangueminerals.Meanwhilethecopperandnickelmineralsarecloselyassociated.Thereareamountso
7、fmagnesiumganguemineralsinoreswithcharacteristicsofsofttexture,easilysliming,goodfloatabilityhighadsorptionability.Thesewillbringseriouslybadimpacttotheseparationofcopperandnickelore.Keywords:copperandnickelore;proscessmineralogy;mineralcomposition;mineraldisseminationcharacte
8、ristics;gangueminerals夏日哈木銅鎳礦區(qū)位于青海省西部東昆侖山出露主要為古元古代金水口巖群白沙河巖組地