鮞狀赤鐵礦鋁鐵分離試驗與機理研究.pdf

1、武漢科技大學碩士學位論文鮞狀赤鐵礦鋁鐵分離試驗與機理研究姓名：沈進杰申請學位級別：碩士專業(yè)：礦物加工工程指導教師：楊大兵20120604第1I頁武漢科技大學碩士學位論文AbstractThelligha1眥1i11a001itichematitebelongte行acto巧iron，itisdimculttoachieVeA1FeefjEeCtiveseparationbyconventio蹦beneficiationprocessOn

2、thebasisofp11ysicoche芏11icalpropertiesandmineraJogycharactersarestudied，tl啪u曲depmreductiond巧ma朗eticseparationprocessdeal、訪mhjgllalu】[11inaoolitichematiteofGuiZ：houHezhang，acllieveA1Feeffecdveseparation，detectionmemodssuc

3、haSⅪ己Da11dSEMiIⅣestigatcmeAl—Fes印arationmecbanismSiI培1e行actortestresultsshowthat：whenadditivesYS1鋤oumof566％，reducingagentamountof150％，reductiontemperatureat1350℃，reductiontimeat40min，Ⅱleroastedorecmsherto一2mm，世erdr)rmagn

4、eticseparationofacoarseaulda1eanWhichma弘eticfieldintens時are1194kA／ln，reducedironproduct目adeof9316％，recoVer)rof8845％，wllichA1203contemof202％，highaluminaslagA1203gradeof1860％andironcomentof1225％舢FeseparationmechaIlismisfol

5、lowiIlg：RoastedoreismairdycomposedofFeandCaOm2032Si02，alsoasmallanlomtofMgO她03，F(xiàn)e2Si04，CaSi408Them曲reductiontelnperal=ureisbenefitfor也egenerationofFe，Ca0A12032Si02aIldCaSi408，alldⅡleironprecipitationaIldgro、)l，ingupWhenr

6、educingagenteXcessiVe，F(xiàn)e0A1203a11dCaOA1203‘2Si02appearinreducedironproductsist量lerootcauseofits掣adealldalumilmmcontemThem血phaSeofaluminl】mint11elli曲aluminaslagisCaOA12032Si02，inadditiont02CaOm203Si02，3Cao舢2033Si02，3CaOA1