He aha ke kaʻina hana o ka Phthalic Anhydride By Product Maleic Anhydride?

Kaʻina Hana Hua Phthalic Anhydride
I ka wā e hana ai i ka phthalic anhydride mai o-xylene, he huahana ʻaoʻao ka maleic anhydride (~5% o ka hana phthalic anhydride). I ka wā o ka hana ʻana o ka phthalic anhydride, holoi ʻia ke kinoea huelo hopena e wehe i nā mea ola; ua hoʻopili ʻia ka wai holoi (loaʻa ka maleic anhydride, nā liʻiliʻi o ka benzoic acid, a me ka phthalic acid), hoʻomaʻemaʻe ʻia, a MAIKAʻI LOAhoʻomaloʻo ʻia—e loaʻa ana nā huahana maleic anhydride.

No ke aha e koho ai i ka Maleic Anhydride? ʻO ia ke kumu o nā resins polyester unsaturated kiʻekiʻe, a wehe pū ia i nā kemika like ʻole ma hope (BDO, THF, a pēlā aku). E leka mai iā mākou i kēia manawa e ʻimi i nā hoʻonā MA i hana kūikawā ʻia no kāu ʻoihana!