1,4-butanediol in maleic anhydride sernak caah acetylene phunglam cu zeidah a si?

Acetylene phunglam 1,4-Butanediol maleic anhydride timhtuahnak.

Pakhatnak ah, acetylene nih 98kPa le 80-95°C ah Cu-Bi catalyst a um lio ah formaldehyde he aa pehtlaih i 1,4-butynediol a chuahter. Cun, 1,4-butynediol cu ​​1.372-2.06MPa le 50-60°C ah skeletal nickel catalysis tangah 1,4-butenediol ah hydrogenated a si. A hnu ah, a dang catalytic hydrogenation (13.7-20.6MPa, 120-140°C) cu Ni-Cu-Mn/Al2O3 he 1,4-butanediol sernak caah tuah a si. Ion thlennak resin hmangin thir ion pawl chuah hnu ah, 1,4-butanediol thianghlim cu thletnak le thianhnak in hmuh khawh a si.

Zeicah Maleic Anhydride na thim? A sangbik a tling lomi polyester resins hna i a hrampi a si, cun a tanglei chemical phunphun (BDO, THF, tbk.) a hun. Na chawlehnak caah aa tlakmi MA a phichuak kawl awkah a tu ah thawngthanhnak kan kuat!