Ukuvulwa kwekotini okucwengezelayo kokuhlanza ukotini - okuhlukanisayo okuhlukanisayo, ukomisa - ukupakisha ukotini okuqediwe: ukotini ocwengile kuvulwa ukususa i-iron, bese kudilizwa. Ukotini ocwengekile ophukile usesimweni se-powder, futhi usayizi wawo wezinhlayiyana yi-80 mesh kanye nokudlulisela kungu-100%. Ngaphandle kwalokho, kulula ukuhlanganisa ndawonye ngesikhathi senqubo yokusabela futhi kunciphise ukusebenza kahle kokuthezeka.
I-Alkalization: engeza ukotini ocwengekile ocwengekile ngemuva kokuvula i-solvent ye-inert, bese uyisebenzisa nge-alkali namanzi athambile ukudonsa umugqa wekotini ocwengekile, futhi uthuthukise ukufana kokuphendula okuthe xaxa . I-alkali esetshenziswe ku-alkalization yi-metal hydroxide noma isisekelo se-organic. Inani le-alkali elingeziwe (ngesisindo, okufanayo ngezansi) liyi-0.1-0.6 izikhathi zekotini ezicwengiwe, kanye nenani lamanzi athambile alokhokhokho ka-0.3-1.0 elokotini elicwengekile; I-solvent ye-inert iyingxube yotshwala ne-hydrocarbon, futhi inani le-solvent ye-inert solvent elengeziwe likotini. Izikhathi eziyi-7-15: I-solvent ye-inert nayo ingaba utshwala ngama-athomu wekhabhoni angama-3-5 (njengotshwala, 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 zezinto ezibonakalayo nomkhiqizo.
Ukuthembela: Ngemuva kokwelashwa kwe-alkalization, ngaphansi kwezimo ze-vacuum, ukusheshisa kwenziwa ngokungeza umenzeli othembisayo, futhi umenzeli otherizayo yi-propenene oxide. Ukuze unciphise ukusetshenziswa kwe-ejenti etheriphuess, kwinqubo yokusheshisa, i-ejenti yokuphenya ingeziwe ngezikhathi ezimbili, inani lokungezwa kokuqala likotini elicwengekile, kanye nenani lezengezo ezimbili yi-1.5-4 izikhathi zekotini ecwengekile. izikhathi. Ngemuva kokungeza i-ejenti yokuphenya okokuqala, vusa ekushiseni kwe-≤30 ° C.-90min, bese kushisa kuze kube ngu-50-5h, bese kupholisa phansi ≤30 ° C, engeza i-Jing ethethelwe okwesibili bese uvuse, isikhathi esivusa ama-30-10min, bese sishisa? ? ? Yenza ukusheshisa, isikhathi ngu-1
Ukuphambanisa nokupakisha: Umkhiqizo omisiwe wokusungulwa kwamanje udilizwa futhi uboniswe. Ubukhulu bezinhlayiyana zomkhiqizo ohleliwe futhi obuhlanzekile we-Desiven yamanje yi-40 Mesh kanye nokudlulisela kungu-10096, noma ngokwezidingo zomsebenzisi. Bese uyipakisha efektri.
Isikhathi Sokuthumela: Oct-13-2022