1,4-butanediol atanga maleic anhydride siamna atana acetylene hman dan chu eng nge ni?
2. 2. A rilru a hah lutuk chuan a rilru a buai em em a025-12-08 ah neih a ni ang
Acetylene hmanga hman dan tur 1, .4-Butanediol hmanga siam a ni maleic anhydride siam chhuahna.
Pakhatnaah chuan acetylene chu Cu-Bi catalyst awmnaah formaldehyde nen 98kPa leh 80-95°C-ah an inrem a, 1,4-butynediol a siam chhuak a ni. Tichuan, 1,4-butynediol chu 1.372-2.06MPa leh 50-60°C-ah skeletal nickel catalysis hmangin 1,4-butenediol-ah hydrogenated a ni. A dawtah chuan Ni-Cu-Mn/Al2O3 hmangin catalytic hydrogenation (13.7-20.6MPa, 120-140°C) tih belh lehin 1,4-butanediol siam a ni. Ion exchange resin hmanga metal ion lakchhuah hnuah distillation leh purification hmangin 1,4-butanediol thianghlim tak kan hmu chhuak thin.