Izici Eziyinhloko Zokulawula Ekukhiqizweni kwe-Bisphenol A
Ngokuphathelene nobumsulwa bezinto zokusetshenziswa, i-phenol ne-acetone, njengezinto zokusetshenziswa eziyinhloko zokukhiqizwa kwe-bisphenol A, zidinga ukulawulwa okuqinile kokuhlanzeka kwazo. Ubumsulwa be-phenol akufanele bube ngaphansi kuka-99.5%, kanti ubumsulwa be-acetone kufanele bufinyelele ngaphezu kuka-99%. Izinto zokusetshenziswa ezihlanzekile kakhulu zinganciphisa ukuphazamiseka kokungcola ekusabeleni futhi ziqinisekise inqubekela phambili ebushelelezi yokusabela.
Ukulawulwa kwezinga lokushisa lokusabela kubalulekile. Izinga lokushisa lokusabela kokujiya ngokuvamile liphakathi kuka-40 - 60°C. Ngaphakathi kwaleli banga lokushisa, izinga lokusabela kanye nokukhetha komkhiqizo kungafinyelela ibhalansi enhle. Izinga lokushisa eliphakeme kakhulu noma eliphansi kakhulu lizothinta isivuno kanye nekhwalithi ye-bisphenol A BPA. Umsebenzi kanye nokukhetha kwe-catalyst kunquma indlela yokusabela. Ama-catalyst e-acid asetshenziswa kakhulu njenge-sulfuric acid adinga ukufakwa okunembile kokuhlushwa kwawo kanye nomthamo. Ngokuvamile, ukuhlushwa kwe-sulfuric acid kuyashintshashintsha ngaphakathi kobubanzi obuthile, futhi umthamo uyisilinganiso esithile senani eliphelele lezinto zokusetshenziswa, ukuze kuqinisekiswe ukuthi i-catalyst isebenza kahle kakhulu. Ukucindezela kokusabela kuthinta nokukhiqizwa kwe-bisphenol A BPA. Ububanzi bokucindezela obufanele bungu-0.5 - 1.5 MPa. Indawo yokucindezela ezinzile isiza ukugcina ukuzinza kohlelo lokusabela futhi ikhuthaza ukudluliselwa kwesisindo kanye nenqubekela phambili yokusabela. Isilinganiso sezinto sihlobene ngqo nokusebenza kahle kokusabela. Isilinganiso se-molar se-phenol ne-acetone ngokuvamile silawulwa ku-2.5 - 3.5:1. Isilinganiso esifanele singenza izinto zokusetshenziswa zisabele ngokugcwele, sandise isivuno se-bisphenol A BPA, futhi sinciphise imikhiqizo engaphansi kwaleyo.

Ukuguqulwa kwe-Bisphenol A BPA kuthuthukisa amandla okusebenza, ukuklwebheka kanye nokumelana nokuguguleka, kulungele ukubhekana nezinselele ezinzima.

Uma ufuna ukuthenga imikhiqizo yamakhemikhali ethembekile, sicela ubheke iShandong Pulisi Chemical Co., Ltd., egxile “kumakhemikhali asezingeni eliphezulu” futhi esisebenze iminyaka engama-20.