Sib txawv ntawm cov dej qab zib tshauv (sodium carbonate, Na2CO3) txawm tias hu ua "alkali", tab sis qhov tseeb yog cov tshuaj muaj pes tsawg leeg ntawm ntsev, thiab cov dej qab zib caustic (sodium hydroxide, NaOH) yog cov soluble tiag tiag hauv dej muaj zog alkali, muaj zog corrosive thiab hygroscopic. vaj tse.Soda tshauv thiab caustic soda tseem hu ua "ob qho kev lag luam alkalis", ob qho tib si ntawm cov ntsev thiab tshuaj lom neeg kev lag luam.Txawm hais tias lawv sib txawv heev ntawm cov txheej txheem tsim khoom thiab cov khoom tsim, lawv qhov zoo sib xws hauv cov khoom siv tshuaj ua rau lawv hloov mus rau qee qhov hauv qee qhov chaw qis qis, thiab lawv cov nqi sib txawv kuj qhia pom kev sib raug zoo.
1. Cov txheej txheem ntau lawm
Caustic soda belongs rau nruab nrab ncav cuag ntawm chlor-alkali kev lag luam saw.Nws txoj kev lag luam tsim tau maj mam hloov los ntawm electrolysis los ntawm txoj kev caustic thaum pib, thiab thaum kawg hloov mus rau hauv txoj kev ionic membrane electrolysis tam sim no.Nws tau dhau los ua txoj hauv kev tseem ceeb ntawm caustic soda ntau lawm hauv Suav teb, suav txog ntau dua 99% ntawm tag nrho, thiab cov txheej txheem tsim khoom yog sib koom ua ke.Cov txheej txheem ntawm cov hmoov tshauv yog muab faib ua ammonia alkali txoj kev, ua ke alkali txoj kev thiab ntuj alkali txoj kev, nyob rau hauv uas ammonia alkali txoj kev account rau 49%, ua ke alkali txoj kev account rau 46% thiab natural alkali txoj kev suav txog li 5%.Nrog rau kev tsim khoom ntawm Trona project ntawm Yuanxing Zog rau xyoo tom ntej, qhov kev faib ua feem ntawm trona yuav nce ntxiv.Tus nqi thiab cov txiaj ntsig ntawm cov txheej txheem ntau lawm ntawm dej qab zib tshauv sib txawv heev, ntawm cov nqi ntawm trona yog qhov qis tshaj.
2. Cov khoom sib txawv
Muaj ob hom caustic soda feem ntau nyob rau hauv kev ua lag luam: kua dej qab zib thiab dej qab zib.Cov kua dej qab zib tuaj yeem muab faib ua 30% kua hauv paus, 32% kua hauv paus, 42% kua hauv paus, 45% kua hauv paus thiab 50% kua hauv paus raws li qhov loj ntawm sodium hydroxide.Cov ntsiab lus tseem ceeb yog 32% thiab 50%.Tam sim no, cov zis ntawm cov kua alkali tso nyiaj ntau dua 80% ntawm tag nrho, thiab 99% caustic soda suav txog li 14%.Cov dej qab zib tshauv nyob rau hauv kev ua lag luam tau muab faib ua lub teeb alkali thiab hnyav alkali, ob qho tib si nyob rau hauv ib lub xeev ruaj khov thiab txawv raws li qhov ceev.Qhov ntom ntom ntawm lub teeb alkali yog 500-600kg / m3 thiab qhov hnyav ntawm alkali hnyav yog 900-1000kg / m3.Hnyav alkali suav txog li 50-60%, raws li tus nqi sib txawv ntawm ob muaj 10% hloov chaw.
3. Ntau hom thiab kev thauj mus los
Cov ntaub ntawv sib txawv ntawm lub cev ua rau caustic soda thiab soda tshauv sib txawv hauv hom kev thauj mus los thiab txoj kev.Kev thauj cov kua alkali feem ntau yog ua los ntawm cov pa roj carbon steel tank tsheb, cov kua alkali concentration ntau dua 45% lossis cov kev cai tshwj xeeb yuav tsum tau ua los ntawm cov nickel stainless hlau tank tsheb, alkali feem ntau yog siv 25kg peb-txheej yas woven hnab lossis lub thoob hlau.Kev ntim khoom thiab khaws cia ntawm cov dej qab zib tshauv yog qhov yooj yim, thiab tuaj yeem ntim rau hauv ob thiab ib txheej yas woven hnab.Raws li cov tshuaj lom neeg muaj kuab lom, kua alkali muaj zog hauv cheeb tsam ntau lawm thiab cov chaw muag khoom yog concentrated nyob rau hauv North thiab East Tuam Tshoj, thaum cov khoom alkali ntau lawm yog concentrated nyob rau sab qaum teb Tuam Tshoj.Qhov chaw tsim khoom ntawm soda tshauv yog cov concentrated, tab sis thaj chaw muag tau tawg.Piv nrog rau cov dej qab zib, cov kua alkali thauj yog txwv tsis pub, ntau tshaj 300 kilometers hauv lub tsheb.
Lub sij hawm xa tuaj: Nov-30-2022