Mokhoa oa acetylene oa ho lokisa maleic anhydride ho tsoa ho 1,4-butanediol ke ofe?

Mokhoa oa Acetylene bakeng sa 1,4-butanediol e lokisitsoeng ka anhydride ea maleic.

Taba ea pele, acetylene e arabela le formaldehyde boteng ba Cu-Bi catalyst ho 98kPa le 80-95°C ho hlahisa 1,4-butynediol. Ebe, 1,4-butynediol e kenngoa haedrojene ho 1,4-butenediol tlas'a catalysis ea skeletal nickel ho 1.372-2.06MPa le 50-60°C. Ka mor'a moo, catalytic hydrogenation e 'ngoe (13.7-20.6MPa, 120-140°C) e etsoa ka Ni-Cu-Mn/Al₂O₃ ho theha 1,4-butanediol. Kamora ho tlosa li-ion tsa tšepe ka resin ea phapanyetsano ea ion, 1,4-butanediol e hloekileng e fumanoa ka ho qhibilihisa le ho hloekisa.

Hobaneng o lokela ho kgetha Maleic Anhydride? Ke motheo wa di-resin tsa polyester tse sa tlalang tse maemong a hodimo, mme e bula dikhemikhale tse fapaneng tse theohelang tlase (BDO, THF, jj.). Re romelle molaetsa hona jwale ho hlahloba ditharollo tsa MA tse etseditsweng kgwebo ya hao!