Calcium Formate Production Process

Calcium formate yog cov tshuaj sib xyaw nrog cov mis Ca (HCOO) 2. Nws yog tsim los ntawm cov tshuaj tiv thaiv ntawm calcium hydroxide (Ca (OH) 2) thiab formic acid (HCOOH). Nov yog cov ntsiab lus dav dav ntawm cov txheej txheem tsim khoom rau calcium formate:

1. Kev npaj ntawm Calcium Hydroxide:

• Calcium hydroxide, tseem hu ua slaked txiv qaub, feem ntau yog tsim los ntawm hydration ntawm quicklime (calcium oxide).
• Quicklime yog thawj zaug rhuab rau hauv ib lub qhov cub kom kub siab kom tsav cov pa roj carbon dioxide, uas ua rau tsim cov calcium oxide.
• Calcium oxide yog tom qab ntawd tov nrog dej hauv cov txheej txheem tswj kom tsim cov calcium hydroxide.

2. Kev npaj ntawm Formic Acid:

• Formic acid feem ntau yog tsim los ntawm oxidation ntawm methanol, siv cov catalyst xws li nyiaj catalyst lossis rhodium catalyst.
• Methanol yog reacted nrog oxygen nyob rau hauv lub xub ntiag ntawm catalyst los tsim formic acid thiab dej.
• Cov tshuaj tiv thaiv tuaj yeem nqa tawm hauv lub nkoj reactor nyob rau hauv qhov ntsuas kub thiab siab.

3. Cov tshuaj tiv thaiv Calcium Hydroxide nrog Formic Acid:

• Nyob rau hauv lub nkoj reactor, calcium hydroxide tov yog tov nrog formic acid tov nyob rau hauv ib tug stoichiometric piv los tsim calcium formate.
• Cov tshuaj tiv thaiv feem ntau yog exothermic, thiab qhov kub thiab txias yuav raug tswj kom ua kom zoo dua cov tshuaj tiv thaiv thiab tawm los.
• Calcium formate precipitates tawm raws li cov khoom, thiab cov tshuaj tiv thaiv sib tov yuav raug lim kom cais cov khoom calcium formate los ntawm cov kua theem.

4. Crystallization thiab ziab:

• Cov khoom calcium uas tau txais los ntawm cov tshuaj tiv thaiv yuav dhau mus ua cov kauj ruam ntxiv xws li crystallization thiab ziab kom tau cov khoom xav tau.
• Crystallization tuaj yeem ua tiav los ntawm kev ua kom txias cov tshuaj tiv thaiv sib xyaw lossis los ntawm kev ntxiv cov kuab tshuaj los txhawb kev tsim siv lead ua.
• Cov muaju ntawm calcium formate yog ces cais los ntawm niam cawv thiab qhuav kom tshem tawm cov seem seem.

5. Purification thiab ntim:

• Cov calcium uas qhuav qhuav tuaj yeem ua cov kauj ruam ua kom huv kom tshem tawm cov impurities thiab xyuas kom cov khoom zoo.
• Cov purified calcium formate yog tom qab ntawd ntim rau hauv cov thawv tsim nyog los yog lub hnab ntim khoom, kev thauj mus los, thiab xa tawm mus rau cov neeg siv khoom kawg.
• Kev tswj xyuas kev ua tau zoo yog siv thoob plaws hauv cov txheej txheem tsim khoom kom ntseeg tau tias cov khoom kawg ua tau raws li cov lus qhia tshwj xeeb thiab cov kev cai tswj hwm.

Xaus:

Kev tsim cov calcium formate suav nrog cov tshuaj tiv thaiv ntawm calcium hydroxide thiab formic acid los tsim cov khoom xav tau. Cov txheej txheem no yuav tsum tau ua tib zoo tswj cov tshuaj tiv thaiv kab mob, stoichiometry, thiab purification cov kauj ruam kom ua tiav cov khoom purity siab thiab tawm los. Calcium formate yog siv nyob rau hauv ntau yam kev siv, xws li ua ib qho kev sib xyaw ua ke, pub additive, thiab hauv kev tsim cov tawv thiab textiles.