Phenolyog ib qho tseem ceeb heev organic tshuaj raw tshuaj, uas yog dav siv nyob rau hauv kev tsim cov tshuaj lom neeg, thiab lwm yam yog qhov tseem ceeb heev rau kev tsim cov tshuab Phenol. Hauv tsab xov xwm no, peb yuav qhia txog kev tsim cov thev naus laus zis ntawm Phenol hauv kev nthuav dav.

Qhov kev npaj ntawm Phenol feem ntau nqa tawm los ntawm kev rov ua dua Benzene nrog Propylene nyob rau hauv muaj cov catalysts. Cov txheej txheem tshuaj tiv thaiv tuaj yeem faib ua peb qib: thawj kauj ruam yog cov tshuaj tiv thaiv ntawm benzene thiab propylene los ua cumene; Qhov thib ob kauj ruam yog cov oxidation ntawm cumene los ua Cumene Hydroperoxide; Thiab kauj ruam thib peb yog qhov cumeal ntawm cumene hyderoide mus rau phenol thiab acetone.

Nyob rau hauv thawj kauj ruam, benzene thiab propelene yog refleed nyob rau hauv lub xub ntiag ntawm ib acid catalyst los ua cumene. Qhov kev tawm tsam no yog nqa tawm ntawm qhov kub txog li 80 txog 100 degrees Celsius thiab lub siab ntawm txog 10 txog 30 kg / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm). Lub catalyst siv yog feem ntau txhuas chloride lossis sulfuric acid. Cov tshuaj tiv thaiv khoom yog cumene, uas tau sib cais los ntawm cov tshuaj tiv thaiv sib xyaw los ntawm cov distillation.

Hauv kauj ruam thib ob, cumene yog oxidized nrog huab cua nyob rau hauv lub xub ntiag ntawm ib acid catalyst los tsim Cumene Hydroperoxide. This reaction is carried out at a temperature of about 70 to 90 degrees Celsius and a pressure of about 1 to 2 kg/cm2. Cov catalyst siv yog feem ntau sulfuric acid lossis phosphoric acid. Cov tshuaj tiv thaiv cov khoom lag luam yog cumeroxide, uas tau sib cais los ntawm cov tshuaj tiv thaiv sib xyaw los ntawm cov distillation.

Hauv qib peb, cumene hydroperoxide yog cleaved nyob rau hauv muaj ntawm cov acid catalyst los ua phenol thiab acetone. Qhov kev coj ua no yog nqa tawm ntawm qhov kub txog li 100 txog rau 130 degrees Celsius thiab lub siab ntawm txog 1 txog 2 kg / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm / cm). Cov catalyst siv yog feem ntau sulfuric acid lossis phosphoric acid. Cov tshuaj tiv thaiv cov khoom lag luam yog sib xyaw ntawm phenol thiab acetone, uas tau sib cais los ntawm cov tshuaj tiv thaiv sib xyaw los ntawm cov distillation.

Thaum kawg, kev sib cais thiab kev ua kom huv ntawm phenol thiab acetone tau nqa los ntawm distillation. Txhawm rau tau txais cov khoom lag luam siab, muaj cov kab distillation distillation feem ntau yog siv rau kev sib cais thiab ua kom huv. Cov khoom kawg yog Phenol, uas tuaj yeem siv rau kev tsim cov khoom siv ntau yam tshuaj lom.

Hauv cov ntsiab lus xaus, kev npaj cov phenol los ntawm Benzene thiab Propylene los ntawm cov theem saum toj no tau txais kev coj siab heev phenol. Txawm li cas los xij, cov txheej txheem no yuav tsum tau siv ntau ntawm cov acid catalysts, uas yuav ua rau muaj kuab paug loj ntawm cov khoom siv thiab ib puag ncig pa paug. Yog li ntawd, qee txoj kev npaj tshiab tau tsim los hloov cov txheej txheem no. Piv txwv li, txoj kev npaj kev npaj ntawm phenol siv biocatalalysts tau raug siv maj mam thov hauv kev lag luam.