Phenolndi zofunika kwambiri organic mankhwala yaiwisi yaiwisi, amene chimagwiritsidwa ntchito popanga zosiyanasiyana mankhwala mankhwala, monga plasticizers, antioxidants, machiritso wothandizira, etc. Choncho, n'kofunika kwambiri kudziwa luso kupanga phenol.M'nkhaniyi, tidzafotokozera mwatsatanetsatane teknoloji yopanga phenol.

Kukonzekera kwa phenol kumachitika pochita benzene ndi propylene pamaso pa zolimbikitsa.Zomwe zimachitika zitha kugawidwa m'magawo atatu: gawo loyamba ndikuchita kwa benzene ndi propylene kupanga cumene;sitepe yachiwiri ndi makutidwe ndi okosijeni wa cumene kupanga cumene hydroperoxide;ndipo sitepe yachitatu ndi kung'ambika kwa cumene hydroperoxide kupanga phenol ndi acetone.

Mu sitepe yoyamba, benzene ndi propylene amachitidwa pamaso pa asidi catalyst kupanga cumene.Izi zimachitika pa kutentha kwa pafupifupi 80 mpaka 100 madigiri Celsius ndi kuthamanga kwa 10 mpaka 30 kg / cm2.Chothandizira chomwe chimagwiritsidwa ntchito nthawi zambiri ndi aluminium chloride kapena sulfuric acid.Zomwe zimapangidwira ndi cumene, zomwe zimasiyanitsidwa ndi zomwe zimasakanikirana ndi distillation.

Mu sitepe yachiwiri, cumene ndi okosijeni ndi mpweya pamaso pa asidi catalyst kupanga cumene hydroperoxide.Izi zimachitika pa kutentha kwa pafupifupi 70 mpaka 90 digiri Celsius ndi kuthamanga kwa 1 mpaka 2 kg / cm2.Chothandizira chomwe chimagwiritsidwa ntchito nthawi zambiri ndi sulfuric acid kapena phosphoric acid.Zomwe zimapangidwira ndi cumene hydroperoxide, yomwe imasiyanitsidwa ndi zomwe zimasakanikirana ndi distillation.

Mu sitepe yachitatu, cumene hydroperoxide imang'ambika pamaso pa asidi chothandizira kupanga phenol ndi acetone.Izi zimachitika pa kutentha kwa pafupifupi 100 mpaka 130 madigiri Celsius ndi kuthamanga kwa 1 mpaka 2 kg / cm2.Chothandizira chomwe chimagwiritsidwa ntchito nthawi zambiri ndi sulfuric acid kapena phosphoric acid.Zomwe zimapangidwira ndi chisakanizo cha phenol ndi acetone, chomwe chimasiyanitsidwa ndi zomwe zimasakanikirana ndi distillation.

Pomaliza, kulekanitsa ndi kuyeretsa phenol ndi acetone kumachitika ndi distillation.Pofuna kupeza zinthu zoyeretsedwa kwambiri, mizati yambiri ya distillation imagwiritsidwa ntchito kupatukana ndi kuyeretsa.Chomaliza ndi phenol, yomwe ingagwiritsidwe ntchito popanga mankhwala osiyanasiyana.

Mwachidule, kukonzekera kwa phenol kuchokera ku benzene ndi propylene kudzera pamasitepe atatu omwe ali pamwambawa kutha kupeza phenol yoyera kwambiri.Komabe, njirayi ikuyenera kugwiritsa ntchito zida zambiri za asidi, zomwe zingayambitse kuwonongeka kwa zida ndi kuwononga chilengedwe.Choncho, njira zina zokonzekera zatsopano zimapangidwira kuti zilowe m'malo mwa njirayi.Mwachitsanzo, njira yokonzekera phenol pogwiritsa ntchito biocatalysts yakhala ikugwiritsidwa ntchito pang'onopang'ono m'makampani.