Molybdenum Ore yam ntxwv

Molybdenum yog ib qho kev hloov pauv ferrophilic hauv kev faib cov geochemical. Thaum lub sij hawm endogenous mineralization, molybdenum ua ke feem ntau nrog sulfur los tsim pyromorphite. Lwm cov molybdenum-cov kabmob muaj xws li ferromolybdenite, calcium molybdate (CaMo), xim molybdenum-lead (PbMo), colloidal sulfur molybdenite (), thiab xiav molybdenite (-nH2O).

Pyrrhotite () yog cov pob zeb molybdenum uas muaj ntau tshaj plaws nrog cov nqi tsim khoom tiag tiag ntawm ntau tshaj 30 hom molybdenum-cov kabmob uas paub txog qhov xwm txheej. Pyromolybdenite yog cov hlau lead grey, zoo ib yam li graphite, nrog cov xim hlau ci, belongs rau lub hexagonal siv lead ua, cov muaju feem ntau nyob rau hauv daim ntawv ntawm hexagonal flakes, hauv qab nto feem ntau patterned, kev ntxhib los mos thiab nplua, thiab cov flakes yog nyias. thiab hloov tau. Lub ntiajteb txawj nqus tshwj xeeb 4.7 ~ 4.8, hardness 1 ~ 1.5, melting point ntawm 795 degree, khawb ntawm cov ceramic phaj streaks ntawm lub teeb ntsuab ntsuab grey los yog lub teeb ntsuab ntsuab dub, cua sov rau 400 ~ 500 degree thaum nws yog ib qho yooj yim rau oxidize thiab tsim, nitric acid thiab aqua regia tuaj yeem ua rau molybdenum pyroxene () decomposition. Pyromolybdenite Siv hauv kev tsim cov molybdenum ferroalloys, hlau molybdenum, calcium molybdate, ammonium molybdate, lubricants thiab lwm yam.