Waa maxay habka acetylene ee loo diyaariyo maleic anhydride laga bilaabo 1,4-butanediol?

Habka Acetylene ee 1,4- diyaarinta butanediol ee maleic anhydride.

Marka hore, acetylene waxay la falgashaa formaldehyde iyadoo ay joogaan Cu-Bi catalyst oo ku yaal 98kPa iyo 80-95°C si ay u soo saaraan 1,4-butynediol. Kadib, 1,4-butynediol waxaa lagu hago 1,4-butenediol iyadoo la adeegsanayo catalysis-ka nikkel-ka qalfoofka ah 1.372-2.06MPa iyo 50-60°C. Marka xigta, hawo-siinta catalytic dheeraad ah (13.7-20.6MPa, 120-140°C) ayaa lagu sameeyaa Ni-Cu-Mn/Al₂O₃ si loo sameeyo 1,4-butanediol. Ka dib marka laga saaro aayoonka birta iyada oo loo marayo resin-ka is-weydaarsiga ion-ka, 1,4-butanediol saafi ah ayaa lagu helaa iyadoo la kala saarayo oo la nadiifinayo.

Maxaad u dooranaysaa Maleic Anhydride? Waa laf-dhabarta resins-ka polyester-ka ee heerka sare ah ee aan buuxin, iyo sidoo kale waxay furaysaa kiimikooyin kala duwan oo hoos yimaada (BDO, THF, iwm.). Noo soo dir fariin hadda si aad u sahamiso xalal MA ah oo loogu talagalay ganacsigaaga!