Cov Txheej Txheem Tsim Khoom ntawm Formic Acid

Formic acid yog ib qho organic compound nrog cov tshuaj formula HCOOH. Nws tuaj yeem tsim tau los ntawm ntau txoj kev, suav nrog methanol oxidation, carbon monoxide-water reduction, thiab cov txheej txheem gas-phase.

Txoj Kev Oxidation Methanol

Txoj kev oxidation methanol yog ib qho ntawm cov txheej txheem kev lag luam siv dav tshaj plaws rau kev tsim cov kua qaub formic. Cov txheej txheem ntws yog raws li nram no:

(1) Kev Npaj Khoom Siv Raw:
Methanol thiab cua yog npaj ua cov khoom siv raw. Methanol raug ntxuav thiab ziab kom zoo dua qub.

(2) Kev Tshuaj Xyuas Oxidation Catalytic:
Methanol ua rau cov pa oxygen sib xyaws ua ke nyob rau hauv qhov kub thiab txias tshwj xeeb, feem ntau yog siv cov hlau catalyst. Methanol raug oxidized ua ntej rau formaldehyde, uas tom qab ntawd raug oxidized ua formic acid.

(3) Kev Sib Cais thiab Kev Ntxuav:
Cov khoom tsim tawm yog sib cais thiab purified, feem ntau yog los ntawm distillation los yog crystallization.

(4) Kev Kho Mob Roj Tom Qab:
Cov tshuaj tiv thaiv tsim cov pa roj uas muaj CO, CO₂, N₂, thiab lwm yam khoom, uas xav tau kev kho mob los ntawm kev nqus, ziab, lossis kev ntxuav.

Txo nqi rau cov kua qaub formic txij lub Yim Hli mus txog rau lub Kaum Hli, nyem qhov no kom tau txais nws.