Phthalic Anhydride, Yakonzeka Kutumizidwa ~

Ntchito:

Choyamba, phthalic anhydride imagwira ntchito yofunika kwambiri popanga mankhwala. Ndiwofunika kwambiri popanga mankhwala oletsa kutupa, mankhwala a m'mimba, maantibayotiki, mankhwala oletsa khansa ndi mankhwala ena. Kuonjezera apo, phthalic anhydride ndi kalambulabwalo wa kukonzekera kwa mahomoni osiyanasiyana a zomera monga kukula kwa hormone ndi auxin, zomwe ndizofunikira kwambiri kulimbikitsa kukula kwa zomera ndikuwonjezera zokolola.

Kachiwiri, phthalic anhydride imagwiritsidwanso ntchito kwambiri pamakampani opanga utoto ndi zonunkhira. Monga chapakati pa utoto ndi zokometsera, phthalic anhydride imagwiritsidwa ntchito popanga zokometsera, inki, utoto wopangidwa ndi ulusi, ndi zina zambiri. Kuphatikizika kwake kwamankhwala kumapangitsa kuti zisalowe m'malo mwazinthu izi, ndikuwonjezera mitundu ndi zonunkhira m'miyoyo ya anthu.

Kuphatikiza apo, phthalic anhydride imagwiranso ntchito yofunika kwambiri popanga mapulasitiki ndi mphira. Ndiwofunika kwambiri popanga zinthu zopangira polima monga polyphenylene ether, polyamide, ndi polyimide. Ma polima awa ali ndi zinthu zabwino kwambiri zakuthupi komanso kukhazikika kwamankhwala, ndipo amagwiritsidwa ntchito kwambiri pamagalimoto, zamagetsi, zomangamanga ndi magawo ena, kupereka chithandizo champhamvu pakukula kwa anthu amakono.

Pankhani ya organic synthesis, phthalic anhydride imakhala ndi ntchito zambiri. Angagwiritsidwe ntchito carbonylation, propylene makutidwe ndi okosijeni, kukonzekera adamulowetsa mpweya esters, youma hydrogenation, aldehyde ndi ketone esterification, asidi nitric ndi zamchere makutidwe ndi okosijeni. Mu kaphatikizidwe kazinthu, phthalic anhydride angagwiritsidwe ntchito popanga ammonium salt, ndipo angagwiritsidwenso ntchito ngati wothandizila wamkulu wa polymerization pakupanga mkuwa wa sulfide yamkuwa. Zopangira izi zimapereka maziko olemera azinthu zopangira makampani opanga mankhwala.

Kuphatikiza apo, phthalic anhydride imakhalanso ndi ntchito zofunika pazamankhwala abwino. Angagwiritsidwe ntchito zosiyanasiyana kulekana crystallization ndi chothandizira zimachitikira, ndipo angagwiritsidwenso ntchito pokonzekera ndi kubalalitsidwa luso zosiyanasiyana inorganic kashiamu sulfure ma polima. Pokonza migodi, phthalic anhydride angagwiritsidwe ntchito pokonza mchere wa ma depositi ore kuti apititse patsogolo migodi komanso mtundu wa ore. Kuphatikiza apo, phthalic anhydride itha kugwiritsidwanso ntchito ngati mankhwala ophera tizilombo komanso mankhwala ophera tizilombo, omwe amagwira ntchito yofunika kwambiri pakuwonetsetsa kuti mbewu zikumera komanso zokolola zambiri.

Popanga mafakitale, phthalic anhydride imagwiritsidwa ntchito makamaka ngati zosungunulira komanso zotulutsa. Chifukwa cha kuwira kwake kochepa komanso kusungunuka kwakukulu, phthalic anhydride imagwiritsidwa ntchito kwambiri m'mafakitale oyenga mafuta ndi mafuta a petrochemical monga zopangira zowonongeka. Nthawi yomweyo, itha kugwiritsidwanso ntchito ngati chromatographic analysis reagent ndi extractant for zonunkhira, etc., kupereka njira zothandiza kusanthula mankhwala ndi m'zigawo zonunkhira.

Kuonjezera apo, phthalic anhydride ingagwiritsidwenso ntchito pokonzekera vanillin, kudziwa shuga wa mkodzo, kukonzekera zosiyanasiyana synergists ndi antifreeze, etc. Ndi imodzi mwa zipangizo zopangira polyvinyl chloride stabilizers ndi chisankho chabwino cha mankhwala azitsulo pamwamba. Popanga mphira ndi pulasitiki, phthalic anhydride itha kugwiritsidwa ntchito ngati chowonjezera cha mphira ndi chowonjezera cha pulasitiki kupititsa patsogolo magwiridwe antchito ndi mtundu.