Izinto eziqakathekileko zokulawula ukukhiqizwa kwe-Bisphenol A
Ngokuya ngobumsulwa bezinto ezisetjenziswako, i-phenol ne-acetone, njengezinto eziqakathekileko zokukhiqiza i-bisphenol A, zitlhoga ukulawulwa okuqinileko phezu kobumsulwa bazo. Ukuhlanzeka kwe-phenol akukafaneli kube ngaphasi kwama-99.5%, begodu ukuhlanzeka kwe-acetone kufanele kufike ngaphezu kwama-99%. Iinsetjenziswa ezihlanzekileko eziphezulu zinganciphisa ukuphazamiseka kokusilaphazeka ekuphenduleni begodu ziqinisekise ukuragela phambili okubushelelezi kokuphendula.
Ukulawulwa kwezinga lokutjhisa lokusabela kuqakathekile. Izinga lokutjhisa lokunciphisa livamise ukuba hlangana kwama-40 ukuya ku-60°C. Ngaphakathi kwezinga lokutjhisa, izinga lokuphendula nokukhethwa komkhiqizo kungafinyelela ibhalansi ehle. Amazinga womtjhiso aphezulu khulu nofana aphasi khulu azokuthinta isivuno nekhwalithi ye-bisphenol A BPA. Umsebenzi nokukhetha kwe-catalyst kunquma indlela yokusabela. Iinsetjenziswa ezisetjenziswa khulu ezine-esidi ezifana ne-sulphuric acid zitlhoga ukusetjenziswa okuqondileko kwezinga lazo kanye nomthamo. Ngokuvamileko, ukugxila kwe-sulphuric acid kuyaguquguquka ngaphakathi kwebanga elithileko, begodu umthamo uyingcenye ethileko yenani elipheleleko lezinto ezisetjenziswako, ukwenzela ukuqinisekisa bona isikhuthazi sisebenza kuhle khulu. Ukugandeleleka kokuphendula nakho kuthinta ukukhiqizwa kwe-bisphenol A BPA. Ibanga elifaneleko lomtjhini ngu-0.5 ukuya ku-1.5 MPa. Ibhoduluko elizinzileko lokugandeleleka lisiza ukugcina ukuzinza kwehlelo lokuphendula begodu likhuthaza ukudluliswa kwesisindo nokuragela phambili kokuphendula. Isilinganiso sezinto eziphathekako sihlobene ngqo nokusebenza kuhle kokusabela. I-molar ratio ye-phenol ukuya ku-acetone ivamise ukulawulwa ku-2.5 – 3.5:1. Isilinganiso esifaneleko singenza bona izinto ezisetjenziswako zisabele ngokuzeleko, zikhulise isivuno se-bisphenol A BPA, begodu zinciphise imikhiqizo.

I-Bisphenol A BPA modification ikhuphula amandla womtjhini, ukuklwebheka nokuguga, ilungele ukuqalana neentjhijilo ezibudisi.

Nawufuna ukuthenga imikhiqizo yamakhemikhali ethembekileko, sibawa ufune i-Shandong Pulisi Chemical Co., Ltd., edzimelele "emakhemikhali wekhwalithi" begodu sele isebenza iminyaka ema-20.