Ukuqalisa
UPhenoxyethanol, okusetshenziswa kabanzi kwezimonyo kwezimonyo, unikeze ukuvelela ngenxa yokusebenza kwayo ngokumelene nokukhula kwe-microbial kanye nokuhambisana nokwakheka kwezikhumba. Ngokwesiko okwenziwe nge-williamson ether syntoxide usebenzisa i-sodium hydroxide njenge-catalyst, inqubo ivame ukubhekana nezinselelo ezifana nokwakheka kwe-byproduct, kanye nokukhathazeka kwemvelo. Intuthuko yakamuva eCatalytic Chemistry kanye nobunjiniyela obuluhlaza bavule indlela yenoveli: Ukusabela okuqondile kwe-Ethylene oxide nge-phenol ukukhiqiza ubumsulwa obukhulu, ukukhiqiza izimonyo - i-phenoxyethanol. Lokhu okusha kuthembisa ukuchaza kabusha amazinga okukhiqiza izimboni ngokuthuthukisa ukusimama, ukuqina, kanye nokusebenza kwezindleko.
Izinselelo Ezindleleni Ezivamile
I-classical synthesis yePhenoxyethanol ifaka ukusabela kwe-phenol nge-2-chloroethanol ezimeni ze-alkaline. Ngenkathi esebenza ngempumelelo, le ndlela yakha i-sodium chloride njenge-byproduct, edinga izinyathelo ezibanzi zokuhlanzwa. Ngaphezu kwalokho, ukusetshenziswa kwe-Conlorinated Intermediates kuphakamisa ukukhathazeka kwemvelo nokuphepha, ikakhulukazi ngokuhambisana nokushintshwa komkhakha wezimonyo kwizimiso ze "Green Chemistry". Ngaphezu kwalokho, ukulawulwa kokusabela okungahambisani kuvame ukuholela ekungcoleni okufana ne-polyethylene glycol derivativeves, eshintsha umzimba wekhwalithi yomkhiqizo kanye nokulandela umthetho wokulawula.
Ubuchwepheshe obusha
Impumelelo ilele kwinqubo yezinyathelo ezimbili ze-catalytic esusa ama-reagents ahlangene futhi anciphise imfucuza:
I-Epoxide activation:I-Ethyle oxide, i-epoxide esebenzayo kakhulu, ithola ukuvulwa kwendandatho phambi kwe-phenol. Inoveli ye-heterogeneous acid carlyst (isib. Isidumbu esisekelwa i-salfonic) sisiza lesi sinyathelo ngaphansi kwamazinga okushisa anobunzima (60-80 ° C), ukugwema izimo ezinamandla kakhulu.
Ukukhetha Ukukhetha:I-Catalyst iqondisa ukusabela ekuvukeni kwe-Phenoxyethanol ngenkathi icindezela ukusabela eceleni kwe-polymerization. Izinhlelo Zokulawula Inqubo Ethuthukile, kufaka phakathi ubuchwepheshe be-microreactor, qinisekisa izinga lokushisa eliqondile nokuphathwa kwamaStochiechiometric, ukufeza> Amanani wokuguqula ama-95%.
Izinzuzo ezibalulekile zendlela entsha
Ukusimama:Ngokufaka esikhundleni sangaphambi kokukhohlakala nge-ethylene oxide, inqubo isusa imifudlana enobungozi imfucumfucu. Ukuhlaziywa kwe-catalyst kunciphisa ukusetshenziswa kwezinto ezibonakalayo, ukuqondanisa nezinhloso zezomnotho eziyindilinga.
Ukumsulwa nokuphepha:Ukungabikho kwama-ion we-chloride kuqinisekisa ukuhambisana nemigomo yezimonyo eqinile (isib. Ukulawulwa kwezimonyo ze-EU No. 1223/2009). Imikhiqizo yokugcina ihlangana> Ubumsulwa abangama-99,5%, obucayi bezinhlelo zokusebenza ezibucayi ze-skincare.
Ukusebenza Kwezomnotho:Izinyathelo ezenziwe lula zokuhlanza kanye nezimfuno eziphansi zamandla Cut Izindleko zokukhiqiza ngo ~ 30%, okunikeza izinzuzo zokuncintisana kubakhiqizi.
Imiphumela Yezimboni
Lokhu okusha kufika ngesikhathi esifanele. Ngesidingo se-Phenoxyethanol kulindeleke ukuthi sikhule ku-5.2% CAGR (2023-2030), siqhutshwa yimikhuba yezimonyo yemvelo neyabakhiqizi, abakhiqizi babhekana nengcindezi yokusebenzisa imikhuba ye-eco-friendly. Izinkampani ezinjenge-BASF kanye ne-Classial sezivele zifanelwe izinhlelo ezifanayo ze-catalytic, zibika ukuncipha kwezinyawo zekhabhoni kanye nezinto ezisheshayo kuze kube semakethe. Ngaphezu kwalokho, ukonakala kwendlela kusekela ukukhiqizwa okuminyene, okunika amandla amaketanga okunikezwa kwezifunda kanye nokunciphisa ukuphuma okuhlobene nokungena.
Amathemba esikhathi esizayo
Ucwaningo oluqhubekayo lugxile ku-bio-based e-oxide ethathwe kwizisetshenziswa ezingavuseleleka (isib Ukuhlanganiswa ne-AI-Driven Reaction actimization platform ingathuthukisa ukubikezela kokubikezela kokubikezela nokuphila kwempilo ye-catalyst. Isikhundla esinjalo sesikhundla i-phenoxyethanol synthenas njengemodeli yokukhiqiza amakhemikhali ememezele emkhakheni wezimonyo.
Ukugcina
Ukuhlanganiswa kwe-catalytic kwePhenoxyethanol kusuka ku-Ethylene oxide kanye no-phenol kusibonelo ukuthi ubuchwepheshe buvumela kanjani ukusebenza kahle kwezimboni ngobuphathi bezemvelo. Ngokubhekana nemikhawulo yezindlela zefa, le ndlela ayihlangene kuphela nezidingo ezivelayo zemakethe yezimonyo kodwa futhi isetha uphawu lokumamakhemikhali oluhlaza ekukhiqizweni okukhethekile kwamakhemikhali. Njengoba izintandokazi zomthengi nemithethonqubo iyaqhubeka nokubeka phambili ukusimama, ukuhlukana okunjalo kuzohlala kubaluleke kakhulu ekuthuthukisweni kwezimboni.
Le ndatshana igqamisa ukuhlangana kwamakhemikhali, ubunjiniyela, kanye nokusimama, okunikeza ithempulethi yokuthola izinto ezizayo ekukhiqizweni kwezitholizwe.
Isikhathi sePosi: Mar-28-2025