Phenolhe mea koʻikoʻi koʻikoʻi kemika kemika, i hoʻohana nui ʻia i ka hana ʻana i nā huahana kemika like ʻole, e like me ka plasticizers, antioxidants, curing agents, etc.Ma kēia ʻatikala, e hoʻolauna mākou i ka ʻenehana hana phenol i nā kikoʻī.

 Nā hoʻohana o ka phenol

 

Hana ʻia ka hoʻomākaukau ʻana o ka phenol ma ka hana ʻana i ka benzene me ka propylene i mua o nā catalysts.Hiki ke hoʻokaʻawale ʻia ke kaʻina hana i ʻekolu mau ʻanuʻu: ʻo ka hana mua ka hopena o benzene a me propylene e hana cumene;ʻO ka lua o ka ʻanuʻu ʻo ka oxidation o cumene e hana i ka cumene hydroperoxide;a ʻo ke kolu o ka ʻanuʻu, ʻo ia ka wehe ʻana o ka cumene hydroperoxide e hana i ka phenol a me ka acetone.

 

I ka hana mua, ho'ohenehene'ia ka benzene a me ka propylene i mua o ka mea ho'ohehe'e waika e hana i ka cumene.Hana ʻia kēia hopena ma kahi mahana ma kahi o 80 a 100 degere Celsius a me ke kaomi ma kahi o 10 a 30 kg/cm2.ʻO ka mea hoʻoheheʻe i hoʻohana ʻia he alumini chloride a i ʻole sulfuric acid.ʻO ka huahana hopena he cumene, kahi i hoʻokaʻawale ʻia mai ka hui ʻana ma o ka distillation.

 

Ma ka ʻanuʻu ʻelua, ua hoʻoheheʻe ʻia ka cumene me ka ea i mua o kahi catalyst acid e hana i ka cumene hydroperoxide.Hana ʻia kēia hopena ma kahi mahana ma kahi o 70 a 90 degere Celsius a me ke kaomi ma kahi o 1 a 2 kg/cm2.ʻO ka mea hoʻoheheʻe i hoʻohana ʻia he sulfuric acid a i ʻole phosphoric acid.ʻO ka huahana hopena he cumene hydroperoxide, i hoʻokaʻawale ʻia mai ka hui ʻana e ka distillation.

 

Ma ke kolu o ka hana, ua hoʻokaʻawale ʻia ka cumene hydroperoxide i mua o kahi mea hoʻoheheʻe waika e hana i ka phenol a me ka acetone.Hana ʻia kēia hopena ma kahi mahana o 100 a 130 degere Celsius a me ke kaomi ʻana ma kahi o 1 a 2 kg/cm2.ʻO ka mea hoʻoheheʻe i hoʻohana ʻia he sulfuric acid a i ʻole phosphoric acid.ʻO ka huahana hopena he hui ia o ka phenol a me ka acetone, ka mea i hoʻokaʻawale ʻia mai ka hui ʻana e ka distillation.

 

ʻO ka hope, lawe ʻia ka hoʻokaʻawale ʻana a me ka hoʻomaʻemaʻe ʻana o ka phenol a me ka acetone e ka distillation.No ka loaʻa ʻana o nā huahana maʻemaʻe kiʻekiʻe, hoʻohana pinepine ʻia nā kolamu distillation no ka hoʻokaʻawale ʻana a me ka hoʻomaʻemaʻe.ʻO ka huahana hope loa he phenol, hiki ke hoʻohana ʻia no ka hana ʻana i nā huahana kemika.

 

I ka hōʻuluʻulu ʻana, hiki i ka hoʻomākaukau ʻana o ka phenol mai benzene a me propylene ma o nā ʻanuʻu ʻekolu i luna ke loaʻa ka phenol maʻemaʻe kiʻekiʻe.Eia nō naʻe, pono e hoʻohana i kēia kaʻina hana i ka nui o nā catalysts acid, kahi e hoʻopōʻino nui ai nā mea hana a me ka pollution kaiapuni.No laila, kūkulu ʻia kekahi mau ʻano hoʻomākaukau hou e pani i kēia kaʻina hana.No ka laʻana, ua hoʻohana ʻia ke ʻano hoʻomākaukau o ka phenol me ka hoʻohana ʻana i nā biocatalysts i ka ʻoihana.


Ka manawa hoʻouna: Dec-11-2023