Ikotoni yakanatswa-kuvhura-alkalizing-etherifying-neutralizing-kuparadzanisa-kusuka-kuparadzanisa, kuomesa-pulverizing-kurongedza-yakapedza kuvhura donje: donje rakanatswa rinovhurwa kuti ribvise simbi, uye ipapo pulverized. Iyo donje yakacheneswa yakacheneswa iri muchimiro chehupfu, uye saizi yaro ye80 mesh uye transmittance i100%. Zvikasadaro, zviri nyore kuunganidza pamwe chete panguva yekuita maitiro uye kuderedza etherification kunyatsoita.
Alkalization: Wedzera donje rehupfu rakanatswa mushure mekuvhura muinert solvent, uye woimisa nealkali nemvura yakapfava kuti zviputire latisi yedonje rakanatswa, rinobatsira kupinda kweetherifying ejenti mamorekuru, uye inovandudza kufanana kweiyo etherification reaction. . Iyo alkali inoshandiswa mu alkalization isimbi hydroxide kana organic base. Nhamba yealkali yakawedzerwa (kuburikidza nehukuru, yakafanana pasi) ndeye 0.1-0.6 nguva yekotoni yakanatswa, uye huwandu hwemvura yakapfava ndeye 0.3-1.0 nguva yekotoni yakanatswa; iyo inert solvent isanganiswa yedoro uye hydrocarbon, uye chiyero cheinert solvent chakawedzerwa ikotoni yakanatswa. 7-15 nguva: iyo inert solvent inogonawo kuva doro ne 3-5 carbon atomu (zvakadai sedoro, propanol), acetone. Inogonawo kuva aliphatic hydrocarbons uye anonhuwirira hydrocarbons; tembiricha inofanira kudzorwa mukati 0-35 ° C panguva alkalization; nguva ye alkalization inenge 1hr. Kugadziriswa kwekushisa uye nguva kunogona kugadziriswa maererano nezvinodiwa zvezvinhu uye chigadzirwa.
Etherification: Mushure mekurapa kwe alkalization, pasi pemamiriro ekutsvaira, etherification inoitwa nekuwedzera etherifying agent, uye etherifying agent inonzi propylene oxide. Kuti uderedze kudyiwa kweiyo etherifying agent, mune etherification process, iyo etherifying agent inowedzerwa kaviri, huwandu hwekutanga kuwedzera ndeye 1-3.5 nguva yedonje rakanatswa, uye huwandu hwese hwemaviri ekuwedzera. iri 1.5-4 nguva yedonje rakanatswa. nguva. Mushure mekuwedzera iyo etherifying agent kekutanga, simbisai pane tembiricha ye ≤30 ° C ye45min-90min, wozopisa kusvika 50-100 ° C ye etherification, nguva yacho 1-5h, uye wozotonhora kusvika ≤30. °C , Wedzera etherified Jing kechipiri uye kumutsa, kubvongodza nguva iri 30-120min, wozopisa kusvika? ? ? Ita etherification, nguva iri 1-4h, panguva ino, donje rakanatswa uye etherifying agent rinonyatsoita kuburitsa H-HPC.
Pulverization uye kurongedza: iyo yakaomeswa chigadzirwa chezvino chigadzirwa chinoputswa uye kupepetwa. Saizi yechikamu cheyakaomeswa uye kusefa chigadzirwa chezvino kugadzirwa ndeye 40 mesh uye transmittance ndeye 10096, kana zvinoenderana nezvinodiwa nemushandisi. Woirongedza kunze kwefekitari.
Nguva yekutumira: Oct-13-2022