Ukuvulwa kwekotini okucwengezelayo - kokuqothuka - ukuhlukaniswa kokuhlukaniswa komkhiqizo okuhlukaniswa okuqediwe okuqediwe okuqediwe okuqediwe: ukotini okuphoqelekile: ukotini ocwengekile kuvulwa ukususa insimbi bese kuchotshozwa. Ukotini ocwengekile ocwengekile usesimweni se-powder, ngosayizi wezinhlayiyana we-80 mesh kanye nokudluliselwa kwe-100%. Ngaphandle kwalokho, kulula ukuhlanganisa ndawonye ngesikhathi senqubo yokusabela futhi unciphise ukusebenza kahle kokuthezeka.
I-Alkalization: engeza ukotini ocwengekile ocwengekile ngemuva kokuvulwa ukotini ku-solvent ye-inert, bese uyisebenzisa nge-alkali namanzi athambile ukudonsa ithawula lokotini ocwengekile ukwenza lula ukungena kwama-ajenti ajela futhi uthuthukise ukufana kokuphendula kwe-ejele. I-Alkali esetshenziselwa i-alkalization yi-metal hydroxide noma i-organic alkali. Inani le-alkali elingeziwe (ngesisindo, okufanayo noma ngaphansi) liyi-0.1-0.6 izikhathi ezihlatshwe ukotini, inani lamanzi athambile angezwe kakotini ocwengekile; I-solvent ye-inert iyingxube yotshwala ne-hydrocarbon, kanye nenani le-solvent ye-inert solvent elingezwe yi-0.3-1.0 times enokotini ecwengekile. Izikhathi eziyi-7 -15 zalokho: I-solvent ye-inert nayo ingaba utshwala ngama-athomu wekhabhoni angama-3-5 (anjenge-alcohol, i-propapol), i-acetone. Kungaba futhi nama-hydrocarbon a-aliphatic kanye nama-hydrocarbons amnandi; Izinga lokushisa kufanele lilawulwe ngaphakathi kwe-0-35 ° C ngesikhathi sokuhlangana; Isikhathi se-alkalization sicishe nge-1hr. Ukulungiswa kwamazinga okushisa nesikhathi kunganqunywa ngokuya ngezidingo ezibonakalayo kanye nemikhiqizo.
Ukuthezwa: Ngemuva kokwelashwa kwe-alkalization, ngaphansi kwezimo ze-vacuum, i-ejenti ye-ethershise yengezwa ngokuthezeka, futhi i-ejenti yokusheshisa i-oxide. Ukuze kuncishiswe ukusetshenziswa kwe-ejenti ye-etherification, ngesikhathi sokuthezeka, i-ejenti yokusheshisa ingezwa kaningi, inani lokungezwa kokuqala likotini elicwengekileyo, kanye nenani lezengezo ezimbili elihlanganisiwe. izikhathi. Ngemuva kokungeza i-ejenti etheriphueng okokuqala, vusa ku- ≤30 ° C nge-45min-90min, bese uphakamisa amazinga okushisa kuya ku-50-5 ° ? ? Yenza ukusheshisa, isikhathi singu-1-4h, ngalesi sikhathi, ukotini ocwengiwe uphendula ngokuphelele nge-ejenti yokusheshisa ukukhiqiza i-H-HPC.
Ukuchotshozwa nokupakisha: Ukuchoboza nokuqhakambisa umkhiqizo omisiwe we-Desivent yamanje, usayizi wezinhlayiyana womkhiqizo we-Desintion yamanje ngemuva kokuchithwa nokudluliselwa kungu-4096, noma ngokuya ngezidingo zomsebenzisi, noma ngokuya ngezidingo zomsebenzisi. Bese upakisha ifektri
Isikhathi sePosi: Feb-21-2025