Dab tsi yog txoj hauv kev los npaj cov poov tshuaj carbonate?

Cov txheej txheem ntau lawm ntawm cov poov tshuaj carbonate: Potassium carbonate yog tsim los ntawm cov ntoo tshauv, txoj kev Lubulan, electrolysis method, ion exchange method, thiab lwm yam. Feem ntau siv txoj kev yog electrolysis thiab ion pauv.
1. Cog tshauv txoj kev
Txoj kev cog ntoo tshauv yog txoj kev qub tshaj plaws, uas yog muab rho tawm los ntawm cov ntoo tshauv hlawv los ntawm ntau cov nroj tsuag plhaub (xws li cov noob txiv ntoo, cov tshuaj yej noob plhaub, tung noob shells, thiab sunflower noob shells). Cov ntoo tshauv muaj cov ntsev soluble xws li potassium carbonate, potassium sulfate, thiab potassium chloride, uas tuaj yeem sib cais los ntawm nag lossis daus. Cov qauv no tsis tshua muaj siv vim cov khoom tsis zoo, tsis muaj nyiaj txiag, thiab cov khoom siv raw khoom tsawg. Txoj kev Lubulan yog sib tov cov poov tshuaj sulfate nrog pulverized thee thiab txiv qaub, thiab tom qab ntawd txo thiab ci kom tau cov hmoov tshauv dub (muaj cov poov tshuaj carbonate, calcium sulfide thiab lwm yam khoom hlawv). Tom qab leaching, filtering, evaporation, thiab carbonization, poov tshuaj bicarbonate yog tau, thiab ces cov khoom yog tau los ntawm filtering thiab calcining. Txoj kev no tau raug hloov los ntawm lwm txoj hauv kev vim cov txheej txheem ntev ntws thiab lwm yam laj thawj.
2. Electrolysis txoj kev
Cov tshuaj potassium hydroxide tau los ntawm electrolysis ntawm poov tshuaj chloride yog carbonized nrog carbon dioxide nyob rau hauv lub carbonization ntauwd. evaporate thiab lim los ntawm ntau qhov cuam tshuam evaporator kom tau txais cov poov tshuaj bicarbonate, uas yog tom qab ntawd calcined kom tau txais cov khoom. Txoj kev no tau siv dav heev vim tias nws yooj yim muaj cov khoom siv raw, siv cov poov tshuaj siab, thiab tsis muaj peb qhov pov tseg, tab sis nws siv hluav taws xob ntau dua.
3. Ion txauv txoj kev
Sib pauv nrog potassium chloride siv cation txauv resin. Tom qab ntawd siv ammonium bicarbonate los elute mus rau hauv dilute tov ntawm poov tshuaj bicarbonate, thiab tom qab ntawd mus rau ntau yam nyhuv evaporation, carbonization, crystallization, sib cais thiab calcination kom tau cov khoom. Cov qauv no muaj cov khoom zoo, cov txheej txheem luv luv, thiab tsim nyog rau cov khoom me me.