Maleic anhydride (MA) yog ib qho organic compound tseem ceeb uas siv dav hauv kev lag luam tshuaj lom neeg. Nws cov ntawv thov tseem ceeb suav nrog kev tsim cov unsaturated polyester resins (UPR), uas yog qhov tseem ceeb hauv kev tsim cov fiberglass-reinforced plastics, coatings, thiab automotive parts. Tsis tas li ntawd, MA ua haujlwm ua tus precursor rau 1,4-butanediol (BDO), siv rau hauv cov yas biodegradable, thiab lwm yam derivatives xws li fumaric acid thiab agricultural chemicals36.
Nyob rau xyoo tas los no, kev ua lag luam MA tau muaj kev hloov pauv ntau heev. Xyoo 2024, cov nqi tau poob qis 17.05%, pib ntawm 7,860 RMB / ton thiab xaus rau 6,520 RMB / ton vim muaj kev muab khoom ntau dhau thiab kev thov tsis muaj zog los ntawm kev lag luam vaj tse, tus neeg siv khoom loj ntawm UPR36. Txawm li cas los xij, kev nce nqi ib ntus tau tshwm sim thaum lub sijhawm tsim khoom nres, xws li Wanhua Chemical kaw tsis tau xav txog thaum Lub Kaum Ob Hlis 2024, uas tau tsa cov nqi luv luv los ntawm 1,000 RMB / ton3.
Txij li lub Plaub Hlis 2025, cov nqi MA tseem tsis ruaj khov, nrog rau cov lus hais txij li 6,100 txog 7,200 RMB / ton hauv Suav teb, cuam tshuam los ntawm cov yam xws li cov nqi khoom siv raw (n-butane) thiab kev hloov pauv ntawm qhov xav tau27. Kev ua lag luam yuav nyob hauv qab kev nyuaj siab vim muaj peev xwm tsim khoom ntau ntxiv thiab kev thov tsawg dua los ntawm cov khoom ib txwm muaj, txawm hais tias kev loj hlob ntawm tsheb thiab cov ntaub ntawv biodegradable yuav muab qee qhov kev txhawb nqa.
Lub sijhawm tshaj tawm: Plaub Hlis-08-2025