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Tsev > Xov xwm > Ntsiab lus

Ua txoj kev Sulphate Aluminium

Ua los ntawm cov bauxite muaj sulfuric acid Pressor teb. Los yog siv sulfuric acid tom alunite, kaolinite thiab cov uas muaj alumina thiab Silicon raw cov ntaub ntawv yuav tau ua.

Sulfate hauv bauxite los crushing rau ib yam me me, ntxiv cov tshwm sim uas sulfuric acid, hais sib haum ua kua, du kua thiab ntxiv sulfuric acid tsis los sis ib nyuag alkaline, thiab concentrated li 115 degrees, txias thiab solidified, reacts crushed nrhiav tau qhov khoom lawm.

Tshuaj lom neeg, cov tshuaj tiv thaiv kab zauv:

1. sulfuric acid txujci: bauxite, crushed los ib yam loj. Hwj kais hnov mob nrog sulfuric acid. Aluminium hydroxide (los yog ntshiab si kaolin thiab bauxite) tom qab cov tshwm sim uas sulfuric acid, hom ua tus insoluble recrystallization.

2. crystallization ntawm sulfate txhuas hydrate muaju los acidic lub ntsiab kom cua sov, lawv kuj qhuav, thaum kawg, kub txog 350 ° c, yog dehydrate ib sulfate tsis pub.


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