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Chaizvoizvo, maitiro ekuita kweese makabhohaidhiretsi akagadzirwa naFischer ane alkyl glycosides anogona kudzikiswa kusvika kune maviri maitiro akasiyana, anoti, yakananga synthesis uye transacetalization. Muzviitiko zvese izvi, maitiro anogona kuenderera mumabhechi kana kuenderera.
Pasi pekugadzirisa kwakananga, iyo carbohydrate inopindirana zvakananga nedoro rine mafuta kuita inodiwa refu-chain alkyl polyglycoside. Iyo carbohydrate inoshandiswa inowanzoomeswa isati yaitika chaiyo (semuenzaniso kubvisa kristaro-mvura kana glucose monohydrate = dextrose). Iyi nhanho yekuomesa inoderedza kuita kwedivi kunoitika pamberi pemvura.
Mukugadzirisa kwakananga, monomer solid solid glucose type inoshandiswa sefine particulate solid.Sezvo mhinduro yacho isingaenzaniswi yakasimba / mvura inonaya, iyo yakasimba inofanira kumiswa zvachose mudoro.
Yakanyanya kuderedzwa glucose sirasi (DE> 96; DE = Dextrose yakaenzana) inogona kuita mune yakagadziridzwa yakananga synthesis. kushandiswa kwechipiri chekunyungudutsa uye / kana emulsifiers (somuenzaniso alkyl polyglycoside) inopa kugadzikana kwakagadzikana-kudonha kupararira pakati pedoro neshuga yeglucose.
Iyo miviri-nhanho transacetalization process inoda michina yakawanda kupfuura yakananga synthesis. Muchikamu chekutanga, iyo carbohydrate inopindirana neine pfupi-cheni doro (semuenzaniso n-butanol kana propylene glycol) uye nesarudzo deploy-menzes. Muchikamu chechipiri, alkyl glycoside pfupi-cheni inoshandurwa nedoro rinenge rakareba-rebe kuti riumbe alkyl polyglycoside inodiwa. Kana iyo molar ratio yecarbohydrate kune doro yakafanana, kugoverwa kweoligomer kunowanikwa mukuita transacetalization kwakangofanana neiyo inowanikwa mune yakananga synthesis.
Kana oligo-uye polyglycoses (semuenzaniso starch, syrups ine yakaderera DE value) akashandiswa, iyo transacetalization process inoshandiswa. Iyo inodiwa depolymerization yezvinhu izvi zvekutanga inoda tembiricha ye> 140 ℃. Yakavakirwa padoro rinoshandiswa, izvi zvinogona kugadzira zvinowirirana zvakakwirira izvo zvinomanikidza zvakanyanya kuomesesa pamidziyo uye zvinogona kutungamira kumutengo wechirimwa wepamusoro. MuKazhinji, panguva imwecheteyo, iyo transacetalization process yekugadzira inodhura kupfuura yakananga synthesis. pamusoro pematanho maviri ekuita, mamwe matura ekuchengetera anofanirwa kupihwa, pamwe nesarudzo yebasa zvivako zvezvinwiwa zvenguva pfupi. Nekuda kwekusachena kwakakosha mu starch (senge mapuroteni), alkyl glycosides inofanirwa kuwedzera kana kunatswa. Mune yakareruka transacetalization process, syrups ine yakakwira glucose yemukati (DE> 96%) kana yakasimba glucose marudzi anogona kuita neapfupi-chain alcohols pasi pekumanikidzwa kwakajairwa, anoenderera mberi maitiro akagadzirwa pachikonzero ichi. (Mufananidzo 3 unoratidza nzira mbiri dzekugadzira alkyl polyglycosides)
Mufananidzo 3. Alkyl polyglycoside surfactants-industrial synthesis pathways


Nguva yekutumira: Sep-29-2020