Cudbi la safeeyey—furid — alkalizing — etherifying — dhexdhexaad ka dhigaysa — kala soocida - dhaqid - kala soocida, qallajinta - miiridda - baakad - furitaanka suufka la dhammeeyey: suufka la safeeyey ayaa la furay si looga saaro birta, ka dibna la miiray. Cudbiga la safeeyey ee la miiray waa qaab budo ah, cabbirkeeduna waa mesh 80, gudbintuna waa 100%. Haddii kale, way fududahay in la isku daro inta lagu jiro habka falcelinta oo la yareeyo waxtarka etherification.
Alkalization: Ku dar suufka la safeeyey ee budada ah ka dib markaad furto dareeraha dareeraha ah, oo ku dhaqaaji alkali iyo biyo jilicsan si aad u bararto suufka la safeeyey, taas oo u sahlaysa dhexgalka molecules agent-Eterifying, waxayna wanaajisaa isku mid ahaanshaha falcelinta etherification . Alkalization-ka loo isticmaalo alkalization waa bir hydroxide ama saldhig organic. Qadarka alkali ee lagu daray (cusub, isla hoos) waa 0.1-0.6 jeer ka badan suufka la safeeyey, iyo xaddiga biyaha jilicsan waa 0.3-1.0 jeer ka badan suufka la safeeyey; dareeraha qallafsan waa isku dhafka khamriga iyo hydrocarbon, iyo qadarka dareeraha aan shaqaynayn ee lagu daray waa suuf la safeeyey. 7-15 jeer: dareeraha qallafsan wuxuu kaloo noqon karaa aalkolo leh 3-5 atamka kaarboon (sida khamriga, propanol), acetone. Waxa kale oo ay noqon kartaa hydrocarbons aliphatic iyo hydrocarbons udgoon; heerkulka waa in lagu xakameeyo gudaha 0-35 ° C inta lagu jiro alkalization; waqtiga alkalization waa ilaa 1hr. Hagaajinta heerkulka iyo waqtiga waxaa lagu go'aamin karaa iyadoo loo eegayo shuruudaha alaabta iyo alaabta.
Etherification: Daawaynta alkalization ka dib, xaaladaha faakuumka, etherification waxaa lagu fuliyaa iyadoo lagu darayo wakiilka etherifying, iyo wakiilka etherifying waa propylene oxide. Si loo yareeyo isticmaalka wakiilka etherifying, habka etherification, wakiilka etherification ayaa lagu daraa laba jeer, qadarka ugu horreeya ee lagu daro waa 1-3.5 jeer ka badan suufka la safeeyey, iyo wadarta guud ee labada lagu daray. waa 1.5-4 jeer ka badan suufka la safeeyey. waqtiyo. Ka dib markaad ku darto wakiilka etherifying markii ugu horeysay, walaaq heerkul ah ≤30 ° C 45min-90min, ka dibna kuleyli ilaa 50-100 ° C ee etherification, wakhtigu waa 1-5h, ka dibna qabooji ≤30 °C , Ku dar Jing etherified mar labaad oo walaaq, wakhtiga walaaqaya waa 30-120min, ka dibna kuleyl ilaa ? ? ? Samee etherification, wakhtigu waa 1-4saac, wakhtigan, suufka la safeeyey iyo wakiilka etherifying si buuxda uga falceliyaan si ay u dhaliyaan H-HPC.
Burburinta iyo baakaynta: badeecada la qalajiyey ee hadda jirta waa la miiray oo la miiray. Cabbirka walxaha miiray iyo shaandhayn ee ikhtiraacida hadda waa 40 mesh iyo gudbinta waa 10096, ama marka loo eego baahida isticmaale Kadibna ka soo xidho warshadda.
Waqtiga boostada: Oct-13-2022