Molybdenum Tube

Milling mined ore los ntawm kev sib tsoo thiab sib tsoo
Pob lossis Qws Mills tsoo thiab zom mined ore kom zoo nkauj, tso molybdenite los ntawm ganguage (pob zeb tsis muaj nqi).
Cov mills sib tsoo qhia ntawm no txo ​​cov pob zeb los ntawm qhov loj ntawm cov pob ncaws pob rau qhov loj me ntawm gravel. Cov pob ntxiv milling txo cov khoom siv rau kev sib xws ntawm cov hmoov.

Kev ua plawv
Lub milled ore / gangue hmoov yog sib xyaw nrog kua thiab aerated los ntawm cov pa npuas hauv cov kauj ruam flotation. Qhov tsawg dua cov ore nce siab nyob rau hauv cov froth tau sau, thaum cov neeg loj leeb laib loj hlob los pov tseg. Flotation cais cov mackall cov zaub mov los ntawm Gangue txoj kev no thiab tus tooj liab / molybdenum ores, cais molybdenite los ntawm tooj liab sulfide.
Lub txiaj ntsig Mos2 Merande muaj ntawm 85 thiab 92% Mos2. Ntxiv kev kho mob los ntawm cov kua qaub qaub ua kom qias neeg zoo li tooj liab thiab cov hmoov txhuas, yog tias tsim nyog.

Ci ntsa iab
Ci hauv huab cua ntawm 500 thiab 650 degree hloov tshiab MolyBdenite (tseem hu ua kev siv tshuaj moated) los ntawm cov tshuaj yej cov tshuaj tiv thaiv:
2mos {{2 + 7} → 2moo 3 + 4}} noj mov}
Mos 2 + 6 mOO3 → 7moo 2 + 2 so2
2moo 2 +} → 2moo3
Tsas muaj ntau qib rurnaces, nyob rau hauv uas molybdenite concentrates txav ntawm qhov tam sim no ntawm cua sov thiab gases tshuab los ntawm hauv qab. Daim duab qhia txog ib theem hauv ib qho roaster raug. Cov regary loj rakes txav lub molybdenite mloog los txhawb kev siv tshuaj lom neeg. Cov tshuab desulfurization, xws li sulfuric nroj tsuag lossis txiv qaub Scrubbers, tshem cov sulphur dioxide los ntawm effluent roaster gases.
Lub resased roasted molybdenite mloog zoo li muaj tsawg kawg yog 57% molybdenum, thiab tsawg dua 0. 1% leej faj.

Rhenium rov qab
Qee cov khoom lag luam molybdenite concentrates los ntawm tooj liab mines muaj cov khoom me me (<0.10%) of rhenium. Molybdenum roasters equipped to recover rhenium are one of the principal commercial sources for this rare metal.

Smelting ferromolybdenum
Nruab nrab ntawm 30 thiab 40% ntawm kev ua tshuaj m m mo oxide kev tsim khoom yog txuas ntxiv ua rau hauv ferromolybdenum (femo). Cov pa oxide tau sib xyaw nrog hlau oxide thiab txo los ntawm txhuas hauv cov tshuaj tiv thaiv kub, ua cov ferromolybdenum ingot uas muaj ntau ntau pua kilograms hnyav. Cov khoom muaj nyob nruab nrab ntawm 60 thiab 75% Molybdenum, thiab qhov sib npaug yog qhov tseem ceeb hlau. Tom qab cua txias, lub ingot yog crushed thiab tshuaj ntsuam kom tau raws li cov lus teev tseg ntawm Ferromolybdenum loj me me.

Kev Tsim Ntau Lawm Los Ntawm Cov Tshuaj Mu Oxide
Txog 20% ​​ntawm lub roasted molybdenite tsim tawm tsim thoob ntiaj teb yog ua tiav rau hauv ntau cov khoom siv tshuaj lom. Kev hloov kho tau yog:

Los ntawm sublimation los tsim cov tshuaj ntsuab ntshiab molybdic oxide (moo3)
Los ntawm cov txheej txheem ntub dej los ua ntau hom tshuaj molybdenum tshuaj (mas Molybdic oxides thiab molybdates)
Cov tom ntej muaj kev tshem tawm ntawm lub roasted tsom rau hauv nruab nrab alkaline (ua raws li kev tshem tawm ntawm impurities los ntawm nag lossis los yog cov kuab tshuaj thiab cov kuab tshuaj ntxiv. Lub resulting ammonium molybdate daws yog ces hloov mus rau ib qho ntawm cov khoom molybdate los ntawm crystallization lossis cov kua qaub. Cov no tuaj yeem txuas ntxiv ua los ntawm kev xam pom rau cov molybdenum trioxide.

Molybdenum Hlau Ntau Lawm
Molybdenum hlau yog tsim los ntawm hydrogen txo ntawm cov ntshiab Molybdic oxide lossis ammonium molybdate.
Cov tshuaj txo ntawm cov ntshiab molybdenum trioxide lossis ammonium Dimolybdate rau cov hlau yuav tsum tau ob theem vim hais txog cov hlau ntsuas kom sov uas txwv tus txheej txheem.

Thawj theem ntawm kev txo rau MOO2 tau ua tiav nyob rau hauv qhov kub ntawm 450-650 degree. Qhov thib ob theem, qhov twg Molybdenum Dioxide yog txo rau Molybdenum hlau ua tiav hauv qhov kub ntawm 1, 000-1, 100 degree. Keeb kwm, ob theem tau nqa tawm los ntawm thawb "nkoj" thauj nrog hmoov los ntawm cov cua sov dej muaj huab cua sov.