I-Phenolibaluleke kakhulu i-organic chemical material eluhlaza, esetshenziswa kabanzi ekukhiqizeni imikhiqizo ehlukahlukene yamakhemikhali, njengama-plasticizers, ama-antioxidants, ama-ejenti okwelapha, njll. Ngakho-ke, kubaluleke kakhulu ukwazi ubuchwepheshe bokukhiqiza i-phenol.Kulesi sihloko, sizokwethula ubuchwepheshe bokukhiqiza be-phenol ngokuningiliziwe.

Ukulungiswa kwe-phenol ngokuvamile kwenziwa ngokusabela kwe-benzene nge-propylene phambi kwama-catalysts.Inqubo yokusabela ingahlukaniswa ngezinyathelo ezintathu: isinyathelo sokuqala ukusabela kwe-benzene ne-propylene ukwakha i-cumene;isinyathelo sesibili i-oxidation ye-cumene ukuze yakhe i-cumene hydroperoxide;futhi isinyathelo sesithathu ukuqhekeka kwe-cumene hydroperoxide ukuze kwakheke i-phenol ne-acetone.

Esinyathelweni sokuqala, i-benzene ne-propylene zisabela lapho kukhona i-acid catalyst ukuze kwakheke i-cumene.Lokhu kusabela kwenziwa ekushiseni okungaba ngu-80 kuya ku-100 degrees Celsius kanye nokucindezela okungaba ngu-10 kuya ku-30 ​​kg/cm2.I-catalyst esetshenziswa ngokuvamile i-aluminium chloride noma i-sulfuric acid.Umkhiqizo wokusabela yi-cumene, ehlukaniswa nengxube yokusabela ngokufakwa emanzini.

Esinyathelweni sesibili, i-cumene ixutshwa nomoya lapho kukhona i-acid catalyst ukuze yakhe i-cumene hydroperoxide.Lokhu kusabela kwenziwa ekushiseni okungaba ngu-70 kuya ku-90 degrees Celsius kanye nokucindezela okungaba ngu-1 kuya ku-2 kg/cm2.I-catalyst esetshenziswa ngokuvamile i-sulfuric acid noma i-phosphoric acid.Umkhiqizo wokusabela yi-cumene hydroperoxide, ehlukaniswa nengxube yokusabela ngokufakwa emanzini.

Esinyathelweni sesithathu, i-cumene hydroperoxide iqhekeka phambi kwe-acid catalyst ukuze yakhe i-phenol ne-acetone.Lokhu kusabela kwenziwa ekushiseni okungaba ngu-100 kuya ku-130 degrees Celsius kanye nokucindezela okungaba ngu-1 kuya ku-2 kg/cm2.I-catalyst esetshenziswa ngokuvamile i-sulfuric acid noma i-phosphoric acid.Umkhiqizo wokusabela uyingxube ye-phenol ne-acetone, ehlukaniswa nengxube yokusabela nge-distillation.

Ekugcineni, ukuhlukaniswa nokuhlanzwa kwe-phenol ne-acetone kwenziwa nge-distillation.Ukuze uthole imikhiqizo ehlanzekile, uchungechunge lwamakholomu e-distillation ngokuvamile lusetshenziselwa ukuhlukaniswa nokuhlanza.Umkhiqizo wokugcina yi-phenol, engasetshenziselwa ukukhiqizwa kwemikhiqizo ehlukahlukene yamakhemikhali.

Kafushane, ukulungiswa kwe-phenol kusuka ku-benzene ne-propylene ngokusebenzisa izinyathelo ezintathu ezingenhla kungathola i-phenol ehlanzekile kakhulu.Kodwa-ke, le nqubo idinga ukusebenzisa inani elikhulu lama-acid catalysts, okuzodala ukugqwala okukhulu kwemishini kanye nokungcoliswa kwemvelo.Ngakho-ke, ezinye izindlela zokulungiselela ezintsha zenziwa ukuze zithathele le nqubo.Isibonelo, indlela yokulungiselela i-phenol isebenzisa ama-biocatalysts isetshenziswe kancane kancane embonini.