Acid ntxuav quartz xuab zeb

Quartz xuab zeb pickling thiab pickling txheej txheem ntxaws

Nyob rau hauv kev xaiv ntawm purified quartz xuab zeb thiab siab purity quartz xuab zeb, nws yog ib qhov nyuaj rau ua tau raws li qhov yuav tsum tau ntawm cov pa pa txoj kev, tshwj xeeb tshaj yog rau cov hlau oxide zaj duab xis nyob rau saum npoo ntawm quartz xuab zeb thiab cov hlau impurities nyob rau hauv cov kab nrib pleb.Txhawm rau txhim kho qhov zoo thiab cov txiaj ntsig ntawm quartz xuab zeb purification, ua ke nrog cov yam ntxwv ntawm quartz xuab zeb insoluble nyob rau hauv acid thiab me ntsis soluble hauv KOH tov, cov kua qaub leaching txoj kev tau dhau los ua ib qho tsim nyog txhais tau tias kho quartz xuab zeb.

Quartz xuab zeb pickling kev kho mob yog kho quartz xuab zeb nrog hydrochloric acid, sulfuric acid, oxalic acid los yog hydrofluoric acid kom yaj hlau.

Basic txheej txheem ntawm quartz xuab zeb pickling

Kuv proportioning acid lotion

Tons ntawm xuab zeb yuav tsum tau ua los ntawm 7-9% oxalic acid, 1-3% hydrofluoric acid thiab 90% dej sib tov;Yuav tsum tau 2-3.5 tons ntawm dej, yog hais tias cov dej yog recycled, ces tsuas yog 0.1 tons ntawm cov dej yog xav tau los ntxuav ib tuj ntawm xuab zeb, nyob rau hauv cov xuab zeb tu, yuav inevitably nqa feem ntau ntawm cov xuab zeb;Quartz xuab zeb pickling kev kho mob yog kho quartz xuab zeb nrog hydrochloric acid, sulfuric acid, oxalic acid los yog hydrofluoric acid kom yaj hlau.

Ⅱ Pickling mix

Cov tshuaj pickling yog txhaj rau hauv lub tank pickling thiab ntxiv raws li kev faib ua feem ntawm hydrochloric acid cov ntsiab lus li ntawm 5% ntawm cov xuab zeb hnyav los xyuas kom meej tias cov xuab zeb quartz yog soaked nyob rau hauv cov tshuaj pickling thiab cov ntsiab lus hydrochloric acid yog li 5% ntawm cov xuab zeb. xuab zeb hnyav.

Ⅲ Acid-ntxuav quartz xuab zeb
① Lub sij hawm rau quartz xuab zeb los ntub cov tshuaj pickling feem ntau yog 3-5 teev, qhov tshwj xeeb yuav tsum tau nce los yog txo lub sij hawm soaking raws li cov tawv nqaij daj ntawm quartz xuab zeb, los yog cov kua txiv hmab txiv ntoo thiab quartz xuab zeb tuaj yeem sib tov rau ib lub sij hawm. ntawm lub sijhawm, ua raws li kev siv cov khoom siv cua sov los ua kom sov cov kev daws teeb meem rau qee qhov kub, tuaj yeem txo lub sijhawm pickling.

② Kev siv cov oxalic acid thiab ntsuab alum raws li kev txo tus neeg sawv cev pickling kev kho mob tuaj yeem txhim kho cov solubility ntawm hlau, tig, dej, oxalic acid, ntsuab alum raws li qhov kev faib ua feem ntawm cov tshuaj ntawm qhov kub thiab txias, quartz xuab zeb thiab kev daws teeb meem raws li kev faib ua feem. nrog rau ib qho kev faib ua feem ntawm kev sib tov, nplawm, kev kho mob rau ob peb feeb, cov tshuaj yog lim tawm thiab kho tom qab rov zoo.

③ Hydrofluoric acid kev kho mob: Cov nyhuv yog zoo thaum kho hydrofluoric acid yog siv ib leeg, tab sis cov concentration siab dua.Thaum sib koom nrog sodium dithionite, txo qis ntawm hydrofluoric acid tuaj yeem siv tau.

Ib qho concentration ntawm hydrochloric acid thiab hydrofluoric acid tov tau tov rau hauv quartz xuab zeb slurry tib lub sijhawm raws li qhov kev faib ua feem;Nws tseem tuaj yeem kho nrog hydrochloric acid tov ua ntej, ntxuav thiab tom qab ntawd kho nrog hydrofluoric acid, kho ntawm qhov kub thiab txias rau 2-3 teev, thiab tom qab ntawd lim thiab ntxuav.

Nco tseg:

Yog tias hydrofluoric acid siv rau cov kua qaub quartz xuab zeb, cov tshuaj tiv thaiv yuav nyuaj dua.Ntxiv nrog rau kev sib cais ntawm cov hlau hauv cov kua qaub, HF kuj tuaj yeem cuam tshuam nrog quartz nws tus kheej kom yaj SiO2 thiab lwm yam silicates ntawm qee qhov tuab ntawm qhov chaw.

Txawm li cas los xij, qhov no zoo dua rau kev ntxuav ntawm quartz xuab zeb thiab tshem tawm cov hlau thiab lwm yam impurity, yog li hydrofluoric acid yog qhov zoo rau cov kua qaub leaching ntawm quartz.Txawm li cas los xij, HF yog tshuaj lom thiab corrosive heev, yog li cov kua qaub leaching cov dej khib nyiab xav tau kev kho tshwj xeeb.

Iv Acid rov qab thiab deacidification

Yaug cov kua qaub-ntxuav quartz xuab zeb nrog dej 2-3 zaug, thiab tom qab ntawd neutralize nrog 0.05% -0.5% ntawm sodium hydroxide (caustic soda) alkaline tov, thiab lub sij hawm neutralization yog li 30-60 feeb, thiab xyuas kom meej tias tag nrho cov quartz. xuab zeb yog neutralized nyob rau hauv qhov chaw.Thaum pH nce mus txog alkaline, koj tuaj yeem tso cov lye thiab yaug 1-2 zaug kom txog thaum pH nruab nrab.

Ⅴ Qhuav quartz xuab zeb

Cov xuab zeb quartz yuav tsum tau ntws dej tom qab tshem tawm cov kua qaub, thiab tom qab ntawd cov xuab zeb quartz yuav tsum tau qhuav hauv cov khoom siv ziab.

Ⅵ kev tshuaj ntsuam, xim xaiv thiab ntim, thiab lwm yam.

Cov saum toj no yog cov txheej txheem yooj yim ntawm quartz xuab zeb pickling thiab leaching txheej txheem, quartz xuab zeb ore muaj ib tug kuj dav faib nyob rau hauv peb lub teb chaws, yog li muaj qhov sib txawv ntawm quartz xuab zeb, nyob rau hauv lub purification ntawm quartz xuab zeb kuj yuav tsum tau tshwj xeeb cov teeb meem. tsom xam, txhim kho cov txheej txheem tsim quartz xuab zeb purification.