Izinto ezibonakalayo ze-Phenol Raw

Ipheshelweshiiyingxenye yamakhemikhali eguquguqukayo enezinhlobonhlobo zezicelo embonini kanye nocwaningo. Ukulungiswa kwayo kwezentengiso kufaka inqubo yezinyathelo eziningi eziqala nge-cycclohexane. Kule nqubo, i-cyclohexane ifakwe ochungechungeni lwabaphakathi, kufaka phakathi i-cyclohexanol ne-cyclohexanone, bese kuguqulwa kube yi-phenol. Ake sinikeze imininingwane yale nqubo. 

 

Ukulungiswa kwezentengiso kwe-phenol kuqala nge-cycclohexenane. Lokhu kusabela kwenziwa phambi kwe-ejenti ye-oxidizing, njengomoya noma umoya-mpilo omsulwa, kanye ne-catalyst. I-catalyst esetshenziswe kulokhu kusabela imvamisa imvamisa iyingxube yezinsimbi zoshintsho, njenge-cobalt, manganese, ne-bromine. Ukusabela kwenziwa emazingeni okushisa aphakeme kanye nezingcindezi, ngokujwayelekile kusuka ku-600 kuye ku-900°C no-10 kuya kwangama-200, ngokulandelana.

 

I-oxidation ye-cyclohexane iphumela ekwakhekeni kochungechunge lwabaphakathi, kufaka phakathi i-cyclohexanol ne-cyclohexanone. Lawa ma-Intermediates avele aguqulwa abe yi-phenol isinyathelo esilandelayo sokuphendula. Lokhu kusabela kwenziwa phambi kwe-catalyst ye-acid, efana ne-sulfuric acid noma i-hydrochloric acid. I-catalyst ye-acid igqugquzela ukomisa kwe-cyclohexanol ne-cyclohexanone, okuholela ekwakhekeni kwe-phenol namanzi.

 

I-phenol ebangelwayo isehlanjululwe yi-distillation namanye amasu okuhlanza ukususa ukungcola neminye imikhiqizo. Inqubo yokuhlanzwa iqinisekisa ukuthi umkhiqizo wokugcina uhlangabezana nezidingo zokuhlanza izicelo ezahlukahlukene.

 

I-Phenol isetshenziswa ezinhlobonhlobo zezicelo, kufaka phakathi ukukhiqizwa kwama-polycarbonate, iBisphenol A (BPA), ama-phenolic resins, nezinye izinhlanganisela ezahlukahlukene. AmaPolycarbonate asetshenziswa kabanzi ekukhiqizweni kweziqukathi zepulasitiki, amalensi, nezinye izinto zokubona ngenxa yokucaca kwawo okuphezulu nokumelana nomthelela. I-BPA isetshenziswa ekukhiqizweni kwama-resin e-epoxy nezinye izinamathela, ukumboza, kanye nama-composites. Ama-penolic resins asetshenziswa ekukhiqizweni kwezikhangiso, ukumboza, kanye nama-composites ngenxa yokumelana kwawo okuphezulu ekushiseni nasemakhemikhali.

 

Ekuphetheni, ukulungiswa kwezentengiso kwe-phenol kubandakanya ukuxhumana ne-cycclohexe, kulandelwe ukuguqulwa kwabaphakathi ku-phenol nokuhlanzwa komkhiqizo wokugcina. I-phenol ephumayo isetshenziswa ezinhlobonhlobo zezicelo, kufaka phakathi ukukhiqizwa kweziqukathi zepulasitiki, ukunamathela, ukumboza, kanye nama-composites.


Isikhathi sePosi: Dec-11-2023