Caustic cov dej qab zib, cov npe hu ua Sodium hydroxide (Naoh), feem ntau hu ua ley, caustic alkali, lossis sodium hydrate. Nws los hauv ob daim ntawv loj: khoom thiab kua. Khoom noj khoom haus ruaj khov yog ib tus dawb, ib nrab pob tshab crystalline cov khoom, feem ntau nyob rau hauv daim tawv flake lossis granular daim ntawv. Ua kua Caustic Soda yog cov tshuaj ntawm NAOHYS.
Caustic Soda yog ib qho tseem ceeb siv tshuaj lom neeg dav siv tshuaj lom neeg, Textile thiab Dyeap thiab dyam kev tsim khoom, thiab kev lag luam metap thiab xab npum, thiab kev lag luam uas muaj xab npum.
1. Taw qhia rau Caustic Soda
1.1 lub tswvyim ntawm caustic dej qab zib
Caustic soda muaj tshuaj mis mis Naoh. Nws yog tus cwj pwm los ntawm:
1. Muaj zog corrosiveness: Naoh kiag li distrociates rau sodium thiab hydroxide ions hauv dej, nthuav qhia muaj zog heev.
2. Lub solubility siab hauv dej: nws yaj yooj yim hauv dej nrog kev tso tawm tseem ceeb ntawm tshav kub, ua ib qho kev daws teeb meem alkaline. Nws kuj yog soluble hauv ethanol thiab glycerin.
3. Deliquescence: Tau tawm Capustic Soda txaus kom muaj kev nqus dej noo thiab cov pa roj carbon dioxide los ntawm huab cua, ua rau nws hloov pauv.
4. Hygroscopicity: Cov khoom siv Naoh yog cov huab cua heev thiab, thaum raug rau huab cua, nqus dej noo kom txog thaum nws yaj ua tiav. Ua kua Ceustric dej qab zib tsis muaj cov cuab yeej no.
1.2 Kev faib tawm Caustic dej qab zib
• Los ntawm daim ntawv cev nqaij daim tawv:
• Cov Khoom Noj Khoom Haus Caustic: Flake Caus Npab Dej qab zib, thiab nruas-pob khoom caustic soda.
• Ua kua rau causal: Ntau cov ntau ntau suav nrog 30%, 32%, 45%, nrog rau 32% thiab 50% yog qhov sib tw tshaj plaws hauv kev ua lag luam.
• Qhia tawm cov lag luam:
• Ua kua caustic dej qab zib nyiaj rau 80% ntawm tag nrho cov khoom lag luam.
• Cov dej ntshiab caustic, feem ntau yog flake caustic dej qab zib, ua li txog 14%.
1.3 kev siv ntawm caustic dej qab zib
1. Metallurgy: Cov Hloov Pauv Cov Hluav Taws Xob ntawm cov ores rau hauv soluble salium ntsev, cia cov kev tshem tawm ntawm insoluble impurities.
2. Textile thiab Dyeing: Siv ua tus neeg saib xyuas muag khoom, thiab cov neeg sawv cev sib zog los txhim kho cov ntaub ntawv thiab zas.
3. Tshuaj Kev Lag Luam: Ib qho tseem ceeb cov khoom siv hauv kev tsim polycarbonate, superabsorbent polymers, epoxy resins, phosphy, thiab ntsev ntau si.
4. Pulp thiab ntawv: Tshem tawm lignin thiab lwm yam impurities los ntawm ntoo pulp, txhim kho ntawv zoo.
5.
6. Kev tiv thaiv ib puag ncig: neutralizes acidic dej khib nyiab thiab tshem tawm cov hlau hnyav.
1.4 Ntim, cia, thiab tsheb thauj mus los
• Ntim: cais raws li chav kawm 8 cov khoom siv xeb hauv GB 13690-92 thiab yuav tsum nqa cov khoom "xeb" ntawm GB190-2009.
• Tsheb thauj mus los:
• Ua kua caustic dej qab zib: thauj hauv cov pa roj carbon hlau; High-purity lossis> 45% conventer conventer yuav tsum muaj Nickel Alloy Steel Rankers.
• Cov dej qab zib ruaj khov: feem ntau ntim hauv 25kg triple-txheej woven hnab lossis nruas.
2. Kev lag luam khoom lag luam ntau lawm
Caustic soda yog feem ntau tsim los ntawm ob txoj kev:
1. Causicization Txheej Txheem: cuam tshuam cov sodium carbonate (na₂cate) nrog txiv qaub mis nyuj (Ca (Oh) los tsim sodium hydroxide.
2. Electrolytic txoj kev: electrolysis ntawm lub sodium chloride (NACL) daws cov roj qab zib, nrog cov tshuaj chlorine (clotogen roj (h₂) raws li cov khoom.
• Ion pauv cov txheej txheem Membrane yog cov txheej txheem electrolytic feem ntau.
Ntau lawm piv:
• 1 tuj ntawm Naoh tsim 0.886 tons ntawm cov tshuaj cholorine thiab 0.025 tons ntawm hydrogen roj.
Caustic Soda yog ib daim ntawv thov kev lag luam dav dav thoob plaws ntau yam kev lag luam thiab ua lub luag haujlwm tseem ceeb hauv kev ua ntau yam khoom.
Lub Sijhawm Post: Kaum-24-2024
