Vim li cas thiaj muaj qhov sib txawv ntawm cov khoom noj uas muaj cov kab kawm hauv kev lag luam pub tsiaj?
1. Qhov sib txawv ntawm kev thov kev lag luam
Yuav luag txhua tus neeg tsim cov khoom siv me me yog cov tuam txhab tshuaj lom neeg, thiab tib yam khoom tuaj yeem muag rau ntau lub lag luam. Piv txwv li, cov khoom siv tooj liab sulfate tuaj yeem siv rau hauv ntau lub lag luam xws li cov khoom siv pub tsiaj, chiv, tshuaj tua kab mob, tshuaj mordants, tooj liab electroplating, thiab ore dressing;
Txawm li cas los xij, cov lag luam sib txawv muaj cov kev xav tau zoo sib txawv kiag li rau cov khoom, thiab cov nqi khoom kuj sib txawv heev.
2. Cov khoom siv raw (ore) txawv
Qee cov ntsiab lus tsis tseem ceeb (tooj liab, hlau, zinc thiab cobalt) yog rho tawm los ntawm cov khib nyiab hauv kev lag luam, cov dej khib nyiab lossis cov khoom lag luam.
Cov khoom siv raw sib txawv muaj cov khoom tsis huv sib txawv, ua rau cov khoom kawg zoo sib txawv. Qee cov ntsiab lus me me (manganese, magnesium, potassium pob zeb kho mob) yog rho tawm los ntawm cov pob zeb lossis cov pas dej ntsev.
Cov khoom sib txawv ntawm cov hlau lossis cov qib sib txawv ntawm cov hlau nyoos ua rau cov khoom kawg zoo sib txawv.
3. Cov qauv hauv tebchaws tsis muaj txhij txhua
Tam sim no, tsis muaj cov qauv hauv tebchaws rau qee cov khoom lag luam uas muaj cov khoom xyaw.
Cov qauv hauv tebchaws tsuas yog teeb tsa cov kev cai rau cov ntsiab lus tseem ceeb thiab cov ntsuas kev huv (arsenic, lead, cadmium thiab mercury), tab sis tsis muaj cov kev cai meej rau cov khoom tsis huv uas cuam tshuam rau qhov zoo ntawm cov khoom.
Cov qauv hauv tebchaws tsuas yog qhov pib yooj yim rau qhov zoo ntawm cov khoom xwb. Yog li ntawd, cov tuam txhab pub tsiaj sib txawv (cov lag luam tau txais nyiaj los ntawm txawv teb chaws, cov lag luam thoob tebchaws, cov lag luam hauv zos, cov lag luam me thiab nruab nrab) tau muab cov kev cai zoo sib txawv raws li cov qauv hauv tebchaws rau cov ntsiab lus tseem ceeb.
Txawm tias qee lub lag luam me thiab nruab nrab tsuas yog saib qhov tsos xwb yam tsis tau ua kev sim thaum yuav cov khoom siv tsis muaj teeb meem.
Cov khoom noj uas muaj cov kab kawm twg hauv kev lag luam pub tsiaj muaj cov qauv hauv tebchaws?
Cov khoom lag luam uas muaj cov khoom lag luam txheem hauv tebchaws (9 yam khoom) Tooj liab sulfate, basic cupric chloride, ferrous sulfate, zinc sulfate, zinc oxide, manganese sulfate, magnesium sulfate, calcium iodate, sodium selenite
Cov qauv hauv tebchaws qhia meej meej txog cov cim qhia: cov ntsiab lus tseem ceeb thiab cov cim qhia kev noj qab haus huv (arsenic, lead, cadmium, mercury)
Cov khoom tsis muaj cov qauv hauv tebchaws (5 yam khoom) Magnesium oxide, potassium iodide, cobalt chloride, calcium formate, potassium chloride
Qhov sib txawv ntawm qhov zoo ntawm cov khoom siv kab: tooj liab sulfate
Tooj liab sulfate: rho tawm los ntawm cov kua pov tseg ntawm cov laug cam Circuit Court. Cov khoom muaj cov qauv hauv tebchaws, uas tau qhia meej meej txog cov kev cai rau cov ntsiab lus tseem ceeb thiab cov ntsuas kev huv.
Cov khoom Sustar (ntxiv rau qhov ua tau raws li cov qauv hauv tebchaws):
Kev tswj cov kua qaub ntawm cov khoom siv raw ≤0.014%: Cov khoom muaj kua qaub ntau ua rau muaj ntxhiab tsw phem, txo cov khoom ua kua, yooj yim nqus cov dej noo thiab agglomerate, ua kom cov xim ntawm cov khoom sib xyaw ua ntej ploj mus, yuav ua rau cov vitamins thiab cov enzyme npaj puas tsuaj, thiab yuav ua rau cov roj puas tsuaj.
Cov xuab zeb tooj liab yog nyob rau hauv daim ntawv ntawm cov khoom siv xiav crystalline, thiab cov tsos ntawm cov xuab zeb tooj liab tuaj yeem siv los txiav txim siab ua ntej qhov huv ntawm cov khoom.
Silicon dioxide ntxiv rau hmoov tooj liab ua cov tshuaj tiv thaiv kev sib xyaw
Cov khoom muaj nyob rau hauv kev ua lag luam:
Qhov acidity ntawm cov khoom tooj liab sulfate tuaj yeem ncav cuag txog li 0.03%. Lub tuam txhab Sustar txhais cov khoom uas muaj acidity tshaj 0.02% ua cov khoom muaj acidity siab.
Cov kua etching ntawm cov chaw tsim khoom siv hluav taws xob me me yuav muaj ntau cov organic matter, thiab qhov kev pheej hmoo ntawm dioxin yog qhov siab heev. Xuab zeb tooj liab muaj cov hlau tsis huv, thiab cov khoom hloov daj tom qab cua sov. Cov tsos ntawm xuab zeb tooj liab zoo li ntsuab lossis dawb. Yog tias qhov kub hloov pauv ntau thaum lub sijhawm ziab, xim yuav hloov ntawm xiav mus rau dawb.
Xuab zeb tooj liab tsis muaj cov siv lead ua, koob zoo li rab koob lossis cov siv lead ua flaky thiab yooj yim rau agglomerate.
Cov hmoov tooj liab thiab cov cab kuj tsis sib xyaw ua ke, thiab cov ntsiab lus hloov pauv ntau heev; yog tias cov cab kuj ntxiv ntau dhau, cov ntsiab lus tsis tsim nyog.
Qhov loj me ntawm cov hmoov tooj liab tsis sib npaug, thiab qhov sib piv ntawm cov khoom loj ntawm 40-mesh sieve yog qhov siab.
Tom qab yaj hauv dej, cov tshuaj muaj cov khoom tsis yaj hauv dej, cov khoom dai thiab cov khoom ntab.
Qhov sib txawv ntawm qhov zoo ntawm cov khoom siv kab: Cov tshuaj tooj liab chloride yooj yim
Cov tshuaj tooj liab chloride yooj yim muaj tib qho chaw li cov tooj liab sulfate, thiab cov khoom no tau rho tawm los ntawm cov kua dej khib nyiab los ntawm cov laug cam. Cov khoom no muaj cov qauv hauv tebchaws, uas tau qhia meej txog cov kev cai rau cov ntsiab lus tseem ceeb thiab cov ntsuas kev huv.
Cov khoom Sustar (ntxiv rau qhov ua tau raws li cov qauv hauv tebchaws):
Xim sib xws, tsis muaj lumping, zoo fluidity.
Tswj cov pa roj nitrogen thiab cov pa roj chlorine dawb (0.14%; 0.1%) kom txo cov kev pheej hmoo ntawm dioxin thiab kev sib sau ua ke.
Cov khoom muaj nyob rau hauv kev ua lag luam:
Cov ntsiab lus tseem ceeb tsis muaj kev tsim nyog.
Muaj qhov sib txawv xim loj ntawm cov khoom hauv tib pawg.
Pom tseeb cov pob dawb.
Hmoov, tsis muaj zog
Nrog cov khoom tsis huv uas pom tseeb.
Muaj nitrogen thiab chlorine dawb ntau, yooj yim agglomerate.
Qhov sib txawv ntawm qhov zoo ntawm cov khoom siv kab: ferrous sulfate
Ferrous sulfate yog ib yam khoom seem ntawm titanium dioxide hauv kev lag luam tshuaj lom neeg. Cov khoom no muaj cov qauv hauv tebchaws, uas tau qhia meej txog cov kev cai rau cov ntsiab lus tseem ceeb thiab cov ntsuas kev huv.
Cov khoom Sustar (ntxiv rau qhov ua tau raws li cov qauv hauv tebchaws):
Xim sib xws, tsis muaj lumping.
Zoo kua.
Trivalent hlau yog nyob rau hauv 0.15%.
Cov khoom muaj nyob rau hauv kev ua lag luam:
Cov hlau trivalent tsis tsim nyog thiab cov ntsiab lus tseem ceeb tsis tsim nyog.
Muaj qhov sib txawv xim loj ntawm cov khoom hauv tib pawg.
Cov dej noo noo yog siab.
Qhov zoo tsis ua raws li cov qauv hauv tebchaws.
Ib qho me me ntawm cov khoom siv tshem tawm plua plav.
Qhov fluidity tsis zoo, qhov fineness zoo, thiab nws yooj yim rau clump.
Muaj ib txoj kev qhuav rau kev tsim cov hlau ferrous, thiab cov khoom muaj acidity siab heev.
Cov hlau uas muaj ntau muaj feem cuam tshuam loj heev rau qhov zoo ntawm cov khoom noj premix.
Qhov sib txawv ntawm qhov zoo ntawm cov khoom siv kab: zinc sulfate
Cov khoom siv raw ntawm zinc sulfate yog zinc oxide theem nrab (rho tawm ntawm cov tshauv flue, lead-zinc ore, tooj liab-cadmium slag, thiab lwm yam). Muaj ob hom khoom: cov khoom muaj thiab tsis muaj cov txheej txheem tshem tawm hlau, ob qho tib si tuaj yeem siv rau hauv kev tsim cov khoom noj premix. Cov khoom muaj cov qauv hauv tebchaws, uas tau qhia meej meej txog cov kev cai rau cov ntsiab lus tseem ceeb thiab cov ntsuas kev huv.
Cov khoom Sustar (ntxiv rau qhov ua tau raws li cov qauv hauv tebchaws):
Tswj cov chloride ions kom qeeb qeeb qhov xim ntawm cov khoom noj ua ntej sib tov. Thaum siv zinc sulfate ua cov khoom noj ua ntej sib tov, cov chloride ion yuav tsum tsis pub dhau 0.5% thaum lub caij ntuj sov thiab tsis pub dhau 1% thaum lub caij ntuj no.
Cov chloride ion uas muaj nyob hauv zinc sulfate tuaj yeem siab txog 3%. Cov khoom uas muaj chloride ntau feem ntau yuav nqus cov dej noo thiab ua rau muaj pob, thiab cov khoom sib xyaw ua ntej feem ntau yuav hloov xim.
Cov khoom muaj xim liab thiab muaj ntau cov cobalt thiab manganese, uas cuam tshuam rau cov mis pub mis.
Cov khoom muaj xim grey thiab muaj calcium thiab magnesium, uas cuam tshuam rau kev txiav txim siab ntawm qhov kawg ntawm titration.
Cov khoom muaj cov leej faj, uas qhia tau tias nws yog xim khoom ib txwm muaj, tab sis lub ntim khoom hloov daj tom qab cov leej faj qhuav.
Cov txheej txheem tsim khoom tsis zoo thiab cov khoom muaj cov xim dub tsis huv.
Cov peroxide seem hauv zinc sulfate ua rau cov khoom premix kub sai tom qab premix sib xyaw thiab cov khoom noj premix yooj yim hloov xim (cov khoom tsis huv xws li zinc oxide, sulfur trioxide, hlau oxide thiab manganese dioxide).
Cov xim ntawm qhov kawg ntawm titration ntawm qhov kev tshawb pom cov ntsiab lus tseem ceeb raug ncua thiab rov qab mus rau liab sai sai.
Qhov sib txawv ntawm qhov zoo ntawm cov khoom siv kab: zinc oxide
Zinc oxide: cov zinc oxide uas muaj purity siab (99 zinc oxide) thiab cov zinc oxide ib txwm (95 zinc oxide), 95 zinc oxide muaj feem lag luam loj.
Cov txheej txheem tsim khoom: Muaj ntau cov txheej txheem tsim khoom rau zinc oxide. Cov txheej txheem tsim khoom sib txawv, cov khoom siv raw sib txawv, qhov kub calcination sib txawv, thiab lwm yam yuav ua rau cov xim hloov pauv ntawm cov khoom.
Txoj kev tsis ncaj qha
99 zinc oxide Nws yog tsim los ntawm calcining zinc ingots Lub teeb zinc oxide Qhov ceev ntawm 200-500g / L Dawb.
Txoj kev ncaj qha
Nws yog tsim los ntawm calcining zinc suboxide ntawm qhov kub siab Zinc oxide hnyav Qhov ceev ntawm 1200-2000g / L Xim av tsaus Cov hlau hnyav ua tau dhau qhov qauv
Txoj kev ua kua qaub
Nws yog tsim los ntawm kev siv tshuaj lom neeg ntawm zinc suboxide ntawm txoj kev acid Nruab nrab zinc oxide Qhov ceev ntawm 700-1000g / L Me ntsis daj rau daj
Txoj kev siv tshuaj ammonia
Nws yog tsim los ntawm kev siv tshuaj lom neeg ntawm zinc suboxide ntawm txoj kev ammonia Nruab nrab zinc oxide Qhov ceev ntawm qhov ntau 700-1000g / L Dawb rau me ntsis daj
Lub sijhawm tshaj tawm: Lub Kaum Ob Hlis-24-2025
