简介:ChinesePatent:CN1118012APatentee:Mr.ShenchengTao,BeijingSubject:ProcessforHighCurieTemperatureAmorphousREMagneticMaterialAbstract:TheinventioncoversaheattreatmentprocessforhighCurietemperatureamorphousrareearthmagneticmaterialpowder.The.conventionalheattreatmentprocessforhighCurietemperaturerareearthmagneticmaterialpowderwithasizerange0.3—10micronusuallyresultsinlawefficiency,highcostandtheoxidationofthepowderwhenthetemperatureisraisedfromroomtemperaturetothephasetransitionpoint.Theinventedprocesshassolvedtheseproblemsbycontrollingthefollowing4steps:a.searchingforphasetransitionpoint,b.searchingforCuriepoint,c.
简介:ChinesePatent:CN1125652APatentee:Mr.WanxiangRenetal,AnshanIron&SteelCompanySubject:WeldingRodforMn-SteelWeldingAbstract:Theinventedweldingrodconsistsoftwoparts,oneisthecorealloywithacompositionofC=O.08-0.25%,Si=O.30-1.51%,Mn=3.0-15.0%,Cr=5.0-15.0%,Ni=O.5-2.0%,B=O.005-0.1%,P<0.03%,S<0.03%andFebalance,andtheotheristheoutercoatalloyadded
简介:ChinesePatent:CN1116193APatentee:Mr.ChenglinHongetal,Tonghua,JilinProvinceSubject:MagnetizedRareEarthCompositeFertilizerAbstract:Theinventionincludesamagnetizedrareearthcompositenutrientfertilizeranditspreparation.Themaincompositionofthefertilizerisanimalmanure,chemicalfertilizerscontainingnitrogen,phosphateandpotash,coaldustandrareearthandFe3O4dopants.Thewholemixtureismagnetized.Thefertilizerischaracterizedbycheappriceandlonglastingeffectandcanimprovethequalityofthesoilwhencontinuously
简介:ChinaRareEarth1994In1994,Chinarareearthindustryhasenteredaphaseofstronggrowthasaresultoftremendouseffortsinproductsstructurereadjustmentandqualityimprovement.Whatbroughtaboutwasthesubstantialgrowthbothintheproductionandinthesales.Therareearthproduction,domesticconsumptionandexportforgedaheadsimultaneouslyatagreatspeedandmadeanumberofrecord-highs.
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简介:WestudiedthestatesofrareearthelementsinoreoftheXianglushanrareearthdeposit.Rareearthoresamplesweretestedandexaminedbyscanningelectronmicroscope,electronprobe,andchemicalleaching.Noindependentrareearthmineralsweredetectedbyscanningelectronmicroscope.Elementsdetectedbytheelectronicprobefortheinsitumicro-zoneofthesampleincluded:O,Al,Si,Ca,Mg,Fe,Ti,K,Na,S,Cl,C,Cu,Cr,V,andPt.Rareearthelementswerenotdetectedbyelectronprobe.(NH4)2SO4,(NH4)Cl,NaCl,andH2SO4wereusedasreagentsinchemicalleachingexperimentsthateasilyleachedoutrareearthelementsundertheactionof10%reagent,indicatingthattherareearthelementsinorearemainlyintheionicstateratherthanpresentasrareearthminerals.
简介:ItislearnedfromGanzhouRareEarthAssociationthatpricesofrareearthmineralswereraisedattheendofJune.ThiswasthethirdtimethatrareearthmineralpriceswereincreasedsinceMay.Mineralpricewasadjustedlargely.Priceoftheyttriummediumandeuropiumrichorewasliftedby20,000-30,000yuan/ton,to210,000-220,000yuan/ton;priceofLongnanhighyttriummineralwasraisedby20,000yuan/ton,to220,000
简介:OrganizedandsponsoredbytheRareEarthOfficeundertheStatePlanningCommitteeandTheChineseSocietyofRareEarths,themonograph"RareEarth"wasrecentlypublishedbytheChineseMetallurgyPress.Themonographisacontributionofover100namedrareearthspecialistsfromBeijingUniversity,TsinghuaUniversity,GeneralCorpora-
简介:ThisisaphotographItookduringmytriptoSanya.Thatwasmyfirsttripbyair.Ihadbeenlookingforwardtobeingthereforalongtime.
简介:August10~20,2015Chinarareearthmarketremainedstagnantrecently.DemandfromNdFeBmagneticindustrywasweak,whichledtotheconstantpricefallingofdidymium,dysprosiumandterbiumrelatedproducts.Depressedphosphorindustryloweredthepriceofeuropiumandyttrium.Themarketoflanthanumandceriumwasflat.Exportmarketofrareearthsremainedinactiveaswell.
简介:China’srareearthindustryencoun-teredsomedefficultiesin1989afterkeepinguparapiddevelopmentinpro-ductionandmarketingathomeandabroadComparedwith1988,themineralproductoutputdecreasedslightly,buttheyieldofprocessedproductsandsalesvolumestillincreasedsomewhat.Thoughtheannualoutputofmineralproductsin1989was25220tonsREO,15%downfrom1988(29640tonsREO),yetitisstillthelargestproducerinthe