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 rakanatswa rakanatswa mushure mekuvhura muinert solvent, woimisa nealkali nemvura yakapfava kuti zviputire latisi yedonje rakanatswa, rinobatsira kupinda kweetherifying agent agent, uye inovandudza kufanana kwe 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 kushandiswa kweiyo etherifying agent, mukugadzirisa etherification, iyo etherifying agent inowedzerwa kaviri, chiyero chekutanga chekuwedzera ndeye 1-3.5 nguva yekotoni yakanatswa, uye huwandu hwehuwandu hwemaviri ekuwedzera ndeye 1.5-4 nguva iyo yekotoni yakanatswa. nguva. Mushure mekuwedzera iyo etherifying agent kekutanga, simbisai pakushambidzika kwe ≤30 ° C ye45min-90min, wozopisa kusvika ku50-100 ° C ye etherification, nguva ndeye 1-5h, uye wozotonhora kusvika ≤30 ° C , Wedzera etherified Jing kechipiri uye 3, 0 0 0 0 0 0 kupisa kusvika 12 min uye kumutsa 30 min, uye 0-12 nguva inopisa. ? ? Ita etherification, nguva iri 1-4h, panguva ino, donje rakanatswa uye etherifying agent rinonyatsoita kuburitsa H-HPC.
Pulverization uye kurongedza: iyo yakaomeswa chigadzirwa chechigadzirwa chiripo chakapepetwa 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