Nanu ing paralan ning acetylene para keng pamagsadya keng maleic anhydride ibat keng 1,4-butanediol?

Acetylene method para keng 1,4-Butanediol pamagsadya ning maleic anhydride.

Mumuna, ing acetylene makipag-react ya keng formaldehyde keng presensya ning Cu-Bi catalyst keng 98kPa ampo 80-95°C para makagawa yang 1,4-butynediol. Kaybat, ing 1,4-butynediol me-hydrogenate ya keng 1,4-butenediol lalam ning catalysis ning skeletal nickel keng 1.372-2.06MPa ampo 50-60°C. Kaybat, ing karagdagang catalytic hydrogenation (13.7-20.6MPa, 120-140°C) gagawan de gamit ing Ni-Cu-Mn/Al₂O3 para maging 1,4-butanediol. Kaybat dang leko deng metal ions kapamilatan ning ion exchange resin, ing purong 1,4-butanediol makwa ya kapamilatan ning distillation ampo purification.

bakit pilinan ing maleic anhydride? Iti ing gulut da reng top-tier unsaturated polyester resins, ampo makabuklat yang miyayaliwang downstream chemicals (BDO, THF, atbp.). Mag message ka kekami ngeni para abalu mu ing tailored MA solutions para keng kekang negosyu!