Iyiphi indlela ye-acetylene yokulungiselela i-anhydride yama-maleic evela ku-1,4-butanediol?
2025-12-08
Indlela ye-Acetylene ye-1,4-ukulungiswa kwe-butanediol ye-anhydride yama-maleic.
Okokuqala, i-acetylene isabela ne-formaldehyde lapho kukhona i-Cu-Bi catalyst ku-98kPa kanye no-80-95°C ukuze ikhiqize i-1,4-butynediol. Ngemuva kwalokho, i-1,4-butynediol ifakwa i-hydrogen ibe yi-1,4-butenediol ngaphansi kwe-catalysis ye-skeletal nickel ku-1.372-2.06MPa kanye no-50-60°C. Okulandelayo, kwenziwa i-catalytic hydrogenation eyengeziwe (13.7-20.6MPa, 120-140°C) ukuze kwakheke i-1,4-butanediol. Ngemva kokususa ama-ion ensimbi nge-ion exchange resin, i-1,4-butanediol emsulwa itholakala ngokuhluzwa nokuhlanzwa.