Kev tsom xam ntawm polyacrylamide ntau lawm technology

Polyacrylamide txheej txheem ntau lawmmuaj xws li batching, polymerization, granulation, ziab, txias, crushing thiab ntim. Cov khoom siv raw nkag mus rau hauv lub raj xa dej los ntawm lub raj xa dej, ntxiv cov khoom sib xyaw ua ke kom sib xyaw ua ke, txias rau 0-5 ℃, cov khoom siv raw raug xa mus rau lub tshuab hluav taws xob polymerization los ntawm nitrogen deoxygenation, cov ntsiab lus oxygen txo mus txog 1%, ntxiv rau pib rau polymerization, tom qab polymerization, cov roj hmab thaiv yog tws, xa mus rau lub pelletizer rau granulation, granulated pellets xa mus rau lub txaj qhuav kom qhuav. Cov khoom qhuav yog xa mus rau qhov crushing thiab tshuaj ntsuam xyuas qhov system rau crushing. Tom qab crushing, cov khoom nkag mus rau hauv lub ntim system rau ntim thiab tsim cov khoom tiav.

Polyacrylamidetxheej txheem ntau lawm muaj ob kauj ruam

Monomer cov txheej txheem tsim khoom

Kev tsim cov acrylamide monomer yog raws li acrylonitrile li raw khoom, nyob rau hauv qhov kev txiav txim ntawm lub catalyst hydration los tsim cov khoom crude ntawm acrylamide monomer, tom qab flash distillation, refined acrylamide monomer, no monomer yog raw khoom rau zus tau tej cov poly444 acrylamide.

Acrylonitrile + (dej catalyst / dej) → ua ke → crude acrylamide → flash → refined → refined acrylamide.

polymerization technology

Polyacrylamide aqueous tov yog siv los ua raw khoom rau ntau lawm. Nyob rau hauv qhov kev txiav txim ntawm tus pib, cov tshuaj tiv thaiv polymerization yog nqa tawm. Tom qab cov tshuaj tiv thaiv ua tiav, cov pos hniav polyacrylamide tsim yog txiav, granulated, qhuav thiab crushed, thiab thaum kawg cov khoom polyacrylamide yog npaj. Cov txheej txheem tseem ceeb yog polymerization. Hauv cov txheej txheem kev kho mob tom ntej, yuav tsum tau them nyiaj rau cov tshuab cua txias, thermal degradation thiab crosslinking, thiaj li ua kom cov txheeb ze molecular hnyav thiab dej solubility ntawm polyacrylamide.

Acrylamide+ dej (initiator/polymerization) → polyacrylamide cov pos hniav thaiv → granulation → ziab → crushing → polyacrylamide khoom