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cov txheej txheem ntau lawm ntawm cov hlau oxide liab

Muaj ob txoj haujlwm tseem ceeb ntawm cov hlau oxide liab: qhuav thiab ntub. Hnub no peb yuav los saib txog ob txoj kev taug no.

 

1. Ntawm cov txheej txheem qhuav

Cov txheej txheem qhuav yog qhov ib txwm muaj thiab qub hlau oxide liab ntau lawm txheej txheem hauv Suav teb. Nws qhov zoo yog cov txheej txheem tsim khoom yooj yim, cov txheej txheem luv ntws thiab cov khoom siv qis dua khoom siv me me. Qhov tsis zoo yog tias cov khoom lag luam zoo yog me ntsis tsis zoo, thiab cov roj tsis zoo yog tsim thaum lub sijhawm cov txheej txheem calcination, uas muaj kev cuam tshuam pom meej rau ib puag ncig. Xws li cov txheej txheem jarosite calcination, ntau ntawm cov leej faj uas muaj cov roj roj yog tsim thaum lub sijhawm cov txheej txheem calcination.

 

Nyob rau hauv xyoo tas los no, raws li kev siv cov hlau uas muaj cov khoom siv pov tseg, cov txheej txheem thev naus laus zis xws li sulfuric acid cinder method thiab hlau ore hmoov acidification ci ci tau tshwm sim hauv peb lub tebchaws. Qhov zoo ntawm cov txheej txheem no yog cov txheej txheem yooj yim thiab nqis peev tsawg, thiab qhov tsis zoo yog tias cov khoom lag luam qib tsis tshua muaj, uas tsuas yog siv tau rau hauv cov teb qis, thiab cov pa roj ntau qhov tsis zoo yog tsim nyob rau hauv cov txheej txheem ntau lawm, uas muaj kev cuam tshuam zoo ntawm ib puag ncig.

 

2. Ntawm cov txheej txheem ntub dej

 

Cov txheej txheem ntub dej yog siv cov roj lim los yog cov roj lim, ferric sulfate, ferric nitrate raws li cov ntaub ntawv raw, siv thawj npaj ntawm cov noob siv lead ua, tom qab ntawd oxidation los npaj hlau liab hlau oxide liab ntau lawm txheej txheem. Cov ntaub ntawv siv raw khoom tuaj yeem yog ferrous sulfate lossis ferrous nitrate cov khoom nyoos, lossis cov tshuaj tov muaj cov roj tov nrog cov roj lim, ferrous nitrate, ferric sulfate thiab ferric nitrate. Qhov nruab nrab siv tau tuaj yeem yog cov ntawv hlau, ua cov ntawv hlau, alkali lossis ammonia.

 

Qhov zoo ntawm cov txheej txheem ntub dej nyob ntawm kev ua haujlwm zoo thiab ua tau zoo ntawm cov khoom. Txawv ntawm cov hlau cov hlau oxide pigments tuaj yeem npaj. Qhov tsis zoo yog nyob rau hauv cov txheej txheem ntev, kev siv hluav taws xob ntau hauv cov txheej txheem ntau lawm, thiab coob leej muaj cov roj thiab cov khib nyiab tau tsim tawm. Nyob rau tam sim no, tsis muaj qhov zoo ntawm kev siv ntau txoj hauv kev, uas muaj kev cuam tshuam zoo rau ib puag ncig.

 

Txhawm rau suav, muaj ntau yam hlau oxide liab ntau lawm txheej txheem, cov txheej txheem ntau lawm nrog lawv tus kheej zoo txuas ntxiv mus txhawb txoj kev txhim kho hlau oxide pigment kev lag luam, kom coj tau yooj yim rau tib neeg cov khoom lag luam.


Lub sij hawm tshaj tawm: Jul-29-2020