Selelekela
Phenoxyethanol, setlolo se sebelisoang haholo ho litlolo, se fumane botumo ka lebaka la ho sebetsa ha eona khahlanong le kholo ea likokoana-hloko le ho lumellana le metsoako ea letlalo. Ka tloaelo e entsoe ka Williamson ether synthesis e sebelisa sodium hydroxide e le sesosa, hangata ts'ebetso e tobana le liphephetso tse joalo ka tlhahiso ea lihlahisoa, ho se sebetse hantle ha matla le mathata a tikoloho. Likhatelo-pele tsa morao-rao tsa k'hemistri e matlafatsang le boenjiniere ba botala li butse tsela e ncha: karabelo e tobileng ea ethylene oxide le phenol ho hlahisa phenoxyethanol ea boleng bo holimo, bohloeki ba maemo a holimo. Moqapi ona o ts'episa ho hlalosa bocha maemo a tlhahiso ea indasteri ka ho matlafatsa ts'ebetso, sekhahla, le ho baballa litšenyehelo.
Mathata ka Mekhoa e Tloaelehileng
The classical synthesis ea phenoxyethanol e kenyelletsa karabelo ea phenol le 2-chloroethanol maemong a alkaline. Le hoja mokhoa ona o sebetsa, o hlahisa sodium chloride e le sehlahisoa, se hlokang mehato e mengata ea tlhoekiso. Ho feta moo, ts'ebeliso ea li-intermediate tse nang le chlorine e phahamisa matšoenyeho a tikoloho le polokeho, haholo-holo tumellanong le phetoho ea indasteri ea litlolo ho ea ho melao-motheo ea "chemistri e tala". Ho feta moo, taolo e sa tsitsang ea karabelo hangata e lebisa lits'ilang tse joalo ka lintho tse tsoang ho polyethylene glycol, tse senyang boleng ba sehlahisoa le ho latela melao.
Moqapi oa Theknoloji
Katleho e ka har'a mehato e 'meli e thusang e felisang li-reagents tsa chlorinated le ho fokotsa litšila:
Ts'ebetso ea Epoxide:Ethylene oxide, epoxide e sebetsang haholo, e bula lesale ka pel'a phenol. Novel heterogeneous acid catalyst (mohlala, zeolite-supported sulfonic acid) e thusa mohato ona tlas'a mocheso o fokolang (60-80 ° C), ho qoba maemo a matla a matla.
Selective Etherification:The Catalyst e lebisa karabelo ho sebopeho sa phenoxyethanol ha e ntse e hatella karabelo ea lehlakore la polymerization. Mekhoa e tsoetseng pele ea tsamaiso ea ts'ebetso, ho kenyeletsa theknoloji ea microreactor, ho netefatsa mocheso o nepahetseng le tsamaiso ea stoichiometric, ho finyella> 95% ea litekanyetso tsa phetoho.
Melemo ea Bohlokoa ea Mokhoa o Mocha
Moshoelella:Ka ho nkela li-precursors tsa chlorinated sebaka ka ethylene oxide, mokhoa ona o felisa melapo ea litšila e kotsi. Ts'ebeliso ea ts'ebetso ea catalyst e fokotsa tšebeliso ea thepa, e ikamahanya le lipakane tsa moruo tse chitja.
Bohloeki le Polokeho:Ho ba sieo ha li-ion tsa chloride ho tiisa hore ho latela melao e thata ea litlolo (mohlala, EU Cosmetics Regulation No. 1223/2009). Lihlahisoa tsa ho qetela li kopana> bohloeki ba 99.5%, bo bohlokoa bakeng sa lits'ebetso tse hlokolosi tsa letlalo.
Katleho ea Moruo:Mehato e nolofalitsoeng ea tlhoekiso le litlhoko tse tlase tsa matla li fokotsa litšenyehelo tsa tlhahiso ka ~ 30%, li fana ka melemo ea tlholisano ho bahlahisi.
Liphello tsa Indasteri
Popontshwa ena e fihla motsotsong wa bohlokwa. Ka tlhoko ea lefats'e ea phenoxyethanol e lebelletsoeng ho hola ho 5.2% CAGR (2023–2030), e susumetsoang ke mekhoa ea tlhaho ea tlhaho le ea tlhaho, bahlahisi ba tobane le khatello ea ho amohela mekhoa e metle ea tikoloho. Likhamphani tse kang BASF le Clariant li se li lekile lits'ebetso tse ts'oanang tsa ho thusa, ho tlaleha mehato e fokotsehileng ea khabone le nako e potlakileng ea ho ea 'marakeng. Ho feta moo, mokhoa oa scalability o tšehetsa tlhahiso e arolelanoang, e nolofalletsang liketane tsa phepelo ea libaka le ho fokotsa likhase tse amanang le thepa.
Ditebello Tsa Bokamoso
Patlisiso e tsoelang pele e tsepamisitse maikutlo holim'a bio-based ethylene oxide e nkiloeng mehloling e ka nchafatsoang (mohlala, ethanol ea 'moba) ho tsoela pele ho tlosa khabone. Ho hokahana le li-platform tsa ntlafatso ea karabelo e tsamaisoang ke AI ho ka ntlafatsa ponelopele ea kotulo le bophelo bohle ba bophelo. Lintlafatso tse joalo li beha motsoako oa phenoxyethanol e le mohlala bakeng sa tlhahiso ea lik'hemik'hale e tsitsitseng lekaleng la litlolo.
Qetello
The catalytic synthesis ea phenoxyethanol ho tloha ethylene oxide le phenol e fana ka mohlala oa kamoo boqapi ba theknoloji bo ka hokahanyang katleho ea indasteri le tlhokomelo ea tikoloho. Ka ho sebetsana le mefokolo ea mekhoa ea lefa, mokhoa ona ha o finyelle litlhoko tse tsoelang pele tsa 'maraka oa litlolo feela empa o boetse o beha letšoao bakeng sa k'hemistri e tala tlhahisong e khethehileng ea lik'hemik'hale. Ha likhetho le melaoana ea bareki e ntse e tsoela pele ho beha ts'ebetso e tlang pele, likhatelopele tse joalo li tla lula li le bohlokoa tsoelopeleng ea indasteri.
Sengoliloeng sena se totobatsa mateano a k'hemistri, boenjiniere le botsitso, se fana ka template bakeng sa lits'ebetso tsa nako e tlang tsa tlhahiso ea metsoako ea litlolo.
Nako ea poso: Mar-28-2025