Tizatfu Letibalulekile Tekulawula Ekukhiciteni I-Bisphenol A
Ngekuya kwekuhlanteka kwetintfo letiluhlata, iphenol kanye ne acetone, njengetintfo letiluhlata letiyinhloko tekukhicita iBisphenol A, tidzinga kulawulwa lokucinile ngekuhlanteka kwato. Kuhlanteka kwe phenol akukafaneli kube ngaphansi kwa 99.5%, futsi kuhlanteka kwe acetone kumele kufike ngetulu kwa 99%. Tintfo letiluhlata letihlantekile letisetulu tinganciphisa kuphazamiseka kwekungcola ekuphendvuleni futsi ticinisekise inchubekelembili lebushelelezi yekuphendvula.
Kulawula lizinga lekushisa lekuphendvula kubaluleke kakhulu. Lokushisa kwekuphendvula kwekuhlanganiswa kuvame kuba emkhatsini wa 40 – 60°C. Ngaphakatsi kwalelibanga lekushisa, lizinga lekuphendvula kanye nekukhetsa umkhicito kungafinyelela ebhalansini lenhle. Emazinga ekushisa laphakeme kakhulu noma laphansi kakhulu atawutsintsa umkhicito kanye nelizinga le bisphenol A BPA. Umsebenti kanye nekukhetsa kwe-catalyst kuncuma indlela yekuphendvula. Tintfo letivame kusetjentiswa letine esidi letifana ne sulfuric acid tidzinga kusetjentiswa lokucondzile kwekugcila kwato kanye nemthamo. Ngalokuvamile, lokucuketfwe kwe sulfuric acid kuyagucugucuka ngaphakatsi kwelibanga lelitsite, futsi umthamo uyincenye letsite yelinani leliphelele letintfo letiluhlata, kwentela kucinisekisa kutsi le catalyst isebenta kahle kakhulu. Kucindzeteleka kwekuphendvula kuphindze kuthinte kukhicitwa kwe bisphenol A BPA. Libanga lekucindzeteleka lelifanele ngu 0.5 – 1.5 MPa. Indzawo yekucindzeteleka lecinile isita ekugcineni kusimama kweluhlelo lwekuphendvula futsi igcugcutela kudluliselwa kwebuningi kanye nenchubekelembili yekuphendvula. I ratio yempahla ihlobene ngco nekusebenta kahle kwekusabela. Silinganiso se molar se phenol kuya ku acetone sivame kulawulwa ku 2.5 – 3.5:1. Silinganiso lesifanele singenta kutsi letintfo letiluhlata tisabele ngalokugcwele, tikhulise umkhicito we bisphenol A BPA, futsi tinciphise imikhicito lehambisanako.

Bisphenol A kuguculwa kwe BPA kwenta ncono emandla emishini, kumelana nekuklwebheka kanye nekugcoka, kulungele kubhekana netinsayeya letifunako.

Uma ufuna kutsenga imikhicito yemakhemikhali letsembekile, sicela ubuke iShandong Pulisi Chemical Co., Ltd., legcila “kumakhemikhali lasesigabeni” futsi seyisebente iminyaka lengemashumi lamabili.