Ngo ma obedo yub pa Phthalic Anhydride ma ki yubu ki Maleic Anhydride?

Phthalic Anhydride Byproduct Process
Ka kitye ka yubu phthalic anhydride ki i o-xylene, Maleic Anhydride obedo gin ma aa ki iye (~5% pa phthalic anhydride ma aa ki iye). I kare me yubu phthalic anhydride, yamo ma aa ki i tic ki lwoko me kwanyo jami makwo; pii ma ki lwoko kwede (ma tye ki maleic anhydride, wel benzoic acid manok, ki phthalic acid) ki keto ne, ki lwoko, ki lyeto me kwanyo pii iye- ma miyo jami ma ki lwongo ni maleic anhydride.

Pingo iyero Maleic Anhydride? En tye guti pa jami ma ki lwongo ni top-tier unsaturated polyester resins, ki en bene yabo jami ma pat pat ma tye piny (BDO, THF, ki mukene). Cwal kwena botwa kombedi me nongo yoo me MA ma ki yubu pi biyacara ni!