Kodi njira ya Phthalic Anhydride Yopangidwa ndi Maleic Anhydride ndi yotani?

Njira Yopangira Phthalic Anhydride
Popanga phthalic anhydride kuchokera ku o-xylene, maleic anhydride ndi chinthu china (~5% ya phthalic anhydride yotuluka). Pakupanga phthalic anhydride, mpweya wothira mchira umatsukidwa kuti uchotse zinthu zachilengedwe; madzi otsukira (omwe ali ndi maleic anhydride, benzoic acid yochepa, ndi phthalic acid) amasungunuka, kuyeretsedwa, ndi ZABWINOimasungunuka madzi m'thupi—kutulutsa zinthu za maleic anhydride.

Bwanji kusankha Maleic Anhydride? Ndi maziko a unsaturated polyester resins yapamwamba kwambiri, komanso imatsegula mankhwala osiyanasiyana (BDO, THF, ndi zina zotero). Titumizireni uthenga tsopano kuti mupeze mayankho a MA opangidwira bizinesi yanu!