Caustic soda Kev Lag Luam Saw Daim Ntawv Qhia

Dab tsi yog caustic dej qab zib?

Sodium hydroxide, tseem hu ua caustic dej qab zib thiab caustic dej qab zib, muaj tshuaj lom neeg Naoh. Nws yog ib tug muaj zog muaj zog muaj zog, feem ntau nyob rau hauv daim ntawv ntawm cov plaub ya dawb lossis granules. Nws tuaj yeem sib xyaw nrog dej los ua cov tshuaj alkaline, thiab tuaj yeem ua kom yaj nyob rau hauv methanol thiab ethanol. Cov tshuaj alkaline no yog Deliquescent thiab yuav nqus dej vapor hauv huab cua, nrog rau acidic roj xws li carbon dioxide. Sodium hydroxide yog ib qho ntawm cov tshuaj uas ib txwm siv. Nws muaj ntau yam kev siv thiab yog qhov tsim nyog hauv ntau cov txheej txheem muaj: nws feem ntau siv hauv kev tsim cov ntoo huv si, thiab tseem siv hauv tsev alkaline so kom huv.

Yuav ua li cas yog causric dej qab zib ua?

Qhov feem ntau siv txoj kev lag luam yog electrolysis, uas tau muab faib ua:
◆ Dia Diaphragm Electragm Electrolysis: Tom qab salting lub raw rawce, caustic dej qab zib, thiab barium chliaries xws li calcium, magnesium, thiab sulfate ions. Tom qab ntawd ntxiv sodium polyacrylate los yog causticized ua xua mus rau lub tank kom pom tseeb kom ua nrawm nag lossis daus. Tom qab cov xuab zeb xuab zeb, ntxiv hydrochloric acid rau neutralize. Lub brine yog preheated thiab xa mus rau electrolysis. Lub electrolyte yog preheated, evaporated, salted, salted, thiab txias kom tau txais kua caustic dej qab zib. Ntxiv boiling thiab concentration yuav tau txais cov khoom noj caustic soda. Ntsev maj mam tu dej yog siv rau salting. Cov mis nyuj: 2NACL + 2H₂o [electrolysis] → 2NaH + Clu + H₂↑
◆ ion sib pauv Membrane txoj kev: Tom qab cov ntsev nyoos yog ntsev, lub brine yog ua kom zoo raws li cov txheej txheem ib txwm muaj. Thawj lub npe nrov Brine yog lim los ntawm microporous sintered roj carbon tubular lim, thiab tom qab ntawd cov ntsiab lus sib pauv hauv lub brine rau hauv qab 0.002%. Qhov thib ob ua kom zoo brine yog electrolyzed los tsim chlorine hauv anode chamber. Lub Breat hauv lub brine hauv anode chamber nkag mus rau hauv lub canuraly chamber los ntawm ion membrane hydroxide nrog tus 0h nyob rau hauv Cathade Chamber. H + yog ncaj qha tawm ntawm lub Cathode los tsim kom muaj hydrogen. Thaum lub sij hawm cov txheej txheem hluav taws xob daws teeb meem, tus nqi tsim nyog ntawm hydrochloric acid tau ntxiv, thiab cov dej ntshiab yuav tsum tau ntxiv rau cathhode chamber. Cov concentration ntawm kev ua kom siab huv caustic Soda generated hauv cathode chamber yog 30% (Mass) Tshuaj mis: 2NaGn + 2H₂o → 2NaH + H₂↑ + Cl

Caustic Soda Cov Khoom Siv

Cov ntsev nyoos: feem ntau hais txog kev muaj cov zaub ntsev nyoos, uas yog ib qho khoom tseem ceeb tshaj plaws rau caustic dej qab zib thiab dej qab zib tshauv. Nws cov ntsev nyoos ntsev them nyiaj rau 70% ntawm tag nrho cov xyoo nyoos ntsev ntau lawm.

Cov Khoom Siv Hauv Zos

1. Alumina: Tshuaj mis Al2o3. Nws yog lub siab-hardness compound nrog lub ntsiab lus melting ntawm 2054 ° C thiab lub qhov cub npau npau ntawm 2980 ° C. Nws yog ib qho Ion Crystal uas tuaj yeem raug Ionized ntawm kev tsim khoom ntau thiab yog siv dav hauv kev tsim cov polyaluminium chloride, txhuas pigments, pob zeb pigments, ua pob zeb ua xim pigxtures, thiab lwm yam.
2. Corrugated Ntawv: Cov khoom siv zoo li cov khoom siv los ntawm daim ntawv ci ci thiab cov ntawv corrugated tsim los ntawm corrugating rollers. Nws yog feem ntau muab faib ua ib daim ntawv me me corrugated thiab ob chav corrugated ntawv. Nws muaj qhov zoo ntawm tus nqi qis, lub teeb yuag, kev ua tiav yooj yim, muaj zog, thiab yooj yim cia thiab tsheb thauj mus los. Caustic dej qab zib sips plays lub luag haujlwm ntawm tus neeg sawv cev ntawm tus neeg sawv cev.
3. Cov tshuaj acid: formic acid yog ib qho yooj yim organic cov ntaub ntawv raw thiab yog dav siv nyob rau hauv kev lag luam xws li tshuaj tua kab, tawv, tshuaj thiab roj hmab.

4. Sodium tsim los ntawm cov tshuaj tiv thaiv carbon monoxide thiab sodium hydroxide ntawm 150-170 ° C thiab txog 2MPA. Qhov tseeb, cov txheej txheem ntau lawm ntawm sodium tsim yog ib feem ntawm cov tshuaj oxalic hydroce siv rau cov tshuaj tiv thaiv kev nqus tau yog 25% -30%.

5. Zirconium OxyChoororide: YaChoium thiab rov qab los ntawm cov dej qab zib thiab, tshem tawm cov dej qab zib, yaj , thiab tom qab ntawd tau zirconium Dichhloride cov khoom dhau los ntawm evaporation concentration, txias crystallization thiab siv lead ua crushing.