• Kev tsim cov fluoropgypsum:

• Fluoropgypsum yog ib yam khoom ntawm hydrofluoric acid uas ua los ntawm fluorite thiab concentrated sulfuric acid. Rau txhua 1 tuj ntawm hydrofluoric acid tsim, 3.6 tons ntawm anhydrous fluoropgypsum yog tsim.Cov kev sib npaug ntawm cov tshuaj tiv thaiv tshwj xeeb yog qhia hauv Equation 2.1:

• H2S04 plus CaF2-2 HFT plus CaS04 (21 1)

• Thaum cov fluogypsum tawm ntawm lub reactor, qhov kub pub yog 180 ~ 230 degree thiab cov roj kub yog 800 ~ 1000C. Cov gypsum tso tawm yog anhydrous calcium sulfate, belongs rau II CaS04.Thaum pib ntawm lub qhov cub, fluoropgypsum muaj cov fluorite residual thiab sulfuric acid, thiab cov ntsiab lus ntawm fluorine thiab sulfuric acid nyob rau hauv cov tshuaj leaching yog kuj siab, uas tshaj qhov txwv tus nqi teev tseg nyob rau hauv "Hazardous Waste Identification Standard". Nws yog ib qho corrosive heev thiab muaj teeb meem cov khoom pov tseg, yog li nws tsis tuaj yeem muab tso rau.Feem ntau muaj ob txoj hauv kev los daws qhov no hauv peb lub tebchaws:Ib qho yog cov txheej txheem ua kua txiv qaub, uas suav nrog kev ntxiv dej rau cov gypsum tshiab,Thaum cov txiv qaub ntxiv thiab neutralized rau pH =7 los yog li ntawd, nws yuav raug tso tawm.Cov txiv qaub yog ntxiv rau neutralize sulfuric acid thiab nkag mus rau hauv calcium sulfate.Thaum cov txiv qaub ntxiv, tsuas yog ib qho me me ntawm Mgo coj los rau hauv. Yog li, nrog rau txoj kev kho no, purity ntawm fluoropgypsum siab dua, mus txog 80 feem pua ​​'--' 90 feem pua, hu ua txiv qaub-fluoropgypsum.

• Qhov thib ob yog txoj kev ntawm bauxite neutralization, uas yog, ntxiv bauxite rau neutralize cov seem sulfuric acid tuaj yeem rov qab tau cov khoom siv tau zoo aluminium sulfate, ua kom nws acidic me ntsis, thiab tom qab ntawd ntxiv cov txiv qaub neutralization rau pH =7, thiab tom qab ntawd tso tawm stacking.Bauxite muaj li ntawm 40 feem pua ​​​​Si02 thiab lwm yam impurities, kom qhov kawg tso tawm fluoropgypsum qib txo mus rau 70 feem pua ​​-- 80 feem pua, qhov gypsum no hu ua bauxite-fluorspar split.

2. sim cov ntaub ntawv ntawm Additive rau cement

Cov hauv qab no qhia txog kev sib raug zoo ntawm pob zeb's compressing zog thiab ntxiv tus nqi thiabchaw ntau pob tom qab ntxiv cov khoom ntawm cement additive. 

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