Molybdenum Concentrate Smelting txheej txheem

Molybdenum concentrate smelting tsuas yog siv cov hauv qab no:
Oxidation roasting: molybdenite yog roasted kom tau molybdenum roasted xuab zeb, ces molybdenum trioxide yog tau los ntawm sublimation txoj kev los yog ntub txoj kev, thiab ammonium molybdate yog generated rau hauv cov tshuaj thaum leaching nrog ammonia, uas yog sib cais los ntawm insoluble cov ntaub ntawv. Cov tshuaj yog concentrated thiab crystallized kom tau ammonium molybdate crystals, los yog acidified nrog acid los tsim molybdate precipitate, yog li sib cais los ntawm soluble impurities. Ob leeg yog calcined los tsim cov ntshiab molybdenum trioxide, uas yog txo los ntawm hydrogen los tsim molybdenum hlau. Nyob ntawm cov khoom siv roasting lossis cov khoom siv ntxiv, cov txheej txheem tuaj yeem muab faib ua cov txheej txheem rotary kiln roasting txheej txheem, cov txheej txheem ntawm lub tshuab hluav taws xob roasting, txheej txheem ntau chav rauv roasting, txheej txheem fluidized txaj roasting, thiab flash furnace roasting txheej txheem. Cov txheej txheem yuav tsim cov pa luam yeeb ntau, kev ua qias tuaj ntawm ib puag ncig, molybdenum rov qab tus nqi qis, cuam tshuam tsis tshua muaj cov ntsiab lus rhenium yuav luag txhua tus khiav tawm nrog cov pa luam yeeb, tsis haum rau kev ua cov ore qib qis thiab cov ore nyuaj.
Nitric acid leaching txoj kev: nyob rau hauv lub autoclave ua MOS2 oxidized rau soluble molybdate, txoj kev no mas noj pheej yig oxidant - huab cua los yog ntshiab oxygen. Cov txheej txheem no yuav tsum muaj qhov kub thiab txias siab, kev xav tau siab rau cov khoom siv tshuaj tiv thaiv, txhim khu kev qha cov tshuaj tiv thaiv, kev tsim cov cuab yeej nyuaj, cov txheej txheem leaching txheej txheem kuj tseem nyuaj rau kev tswj, muaj qee yam kev nyab xeeb ntawm cov txheej txheem tsim khoom, siv txoj kev no. tau raug ncua.

Sodium hypochlorite leaching txoj kev: Nws yog tsuas yog siv los daws cov leaching ntawm tsawg-siv nruab nrab ore thiab tailings. Nyob rau hauv tus txheej txheem ntawm oxidative leaching, sodium hypochlorite nws tus kheej yuav maj mam decompose thiab precipitate oxygen, thiab ib co lwm yam hlau sulfides kuj yuav oxidized los ntawm sodium hypochlorite, thiab ionic cargo hydroxide ntawm cov hlau yuav raug tsim nrog molybdate los tsim molybdate nag lossis daus, uas txhawb nqa. molybdenum ntawm kev daws kom rov qab mus rau lub slag. Cov txheej txheem ntawm cov tshuaj tiv thaiv yog me me, ntau lawm yog yooj yim los tswj, cov khoom yuav tsum tsis siab, tab sis cov khoom siv raw sodium hypochlorite noj yog loj thiab ua rau cov nqi ntau lawm.
Electro-oxidation leaching method: Nws yog txhim kho los ntawm sodium hypochlorite txoj kev, uas yog ntxiv cov khoom molybdenite uas tau slurried rau hauv lub tank electrolytic nruab nrog sodium chloride tov, nyob rau hauv cov txheej txheem ntawm electro-oxidation, cov khoom anode Cl2 reacts nrog dej. los tsim hypochlorite, uas tom qab ntawd oxidizes molybdenum sulfide hauv cov zaub mov, kom molybdenum nkag mus rau hauv cov tshuaj molybdenum nyob rau hauv daim ntawv ntawm molybdenum nyob rau hauv daim ntawv ntawm molybdenum acid radicals. Txoj kev no tau txais cov yam ntxwv ntawm qhov siab leaching tus nqi ntawm sodium hypochlorite, mob me me, tsis muaj kuab paug, thiab tuaj yeem yooj yim dua los tswj thiab kho cov kev taw qhia, txwv thiab tus nqi ntawm cov tshuaj tiv thaiv.
Tam sim no, tseem muaj qee txoj hauv kev tshiab, xws li molybdenum pyroxene mloog zoo yam tsis muaj oxidizing roasting, ncaj qha siv cov pa oxygen siab ua noj los yog cov kab mob leaching txoj kev los rho tawm cov ntshiab molybdenum trioxide. Rau qib qis oxidized ore leaching nrog sulfuric acid, los ntawm kev daws nrog ion txauv txoj kev los yog extraction txoj kev kom extract ntshiab molybdenum trioxide.