Isabela njani iPhenol kunye neAcetone Condensation kwiMveliso yeBPA?

I-Phenol kunye ne-acetone zifumana i-condensation reaction phantsi kwe-catalysis ye-acidic medium ukuvelisa i-Bisphenol A BPA. I-reaction ephambili ayinzima, kwaye iimeko ze-reaction zincinci. Ngokuqhelekileyo ingaqhubeka kakuhle kuxinzelelo oluqhelekileyo kunye ne-60 - 90 °C. Inkqubo yemveliso ye-BPA ayinde, ikakhulu iquka iinxalenye ezine: i-condensation reaction, i-adduct crystallization, i-phenol removal kunye ne-purification, kunye ne-mother liquor recovery. Nangona kunjalo, i-polycarbonate - grade BPA ineemfuno zomgangatho ophezulu kakhulu, ezifuna ubumsulwa obungaphezulu kwe-99.5%, i-phenol mass fraction engaphantsi kwe-5 × 10⁻⁵, umbala we-APHA ongaphantsi kwe-20, kunye nemiqathango kwi-freezing point, uthuthu, i-iron ions, njl. Ekubeni i-Bisphenol A BPA yinto enovakalelo lobushushu kunye ne-oxygen enendawo yokubilisa ephezulu kakhulu (360.5 °C), ezi mpawu zizisa iingxaki ezininzi zobunjineli beekhemikhali kwimveliso ye-Bisphenol A BPA esemgangathweni ophezulu.