Maleic anhydride (MA) chinhu chakakosha organic compound chinoshandiswa zvakanyanya muindasitiri yemakemikari. Zvishandiso zvayo zvekutanga zvinosanganisira kugadzirwa kweunsaturated polyester resins (UPR), iyo yakakosha mukugadzira fiberglass-yakasimbiswa mapurasitiki, machira, uye zvikamu zvemotokari. Pamusoro pezvo, MA inoshanda seyakatangira 1,4-butanediol (BDO), inoshandiswa mumapurasitiki anogona kuparara, uye zvimwe zvinobva sefumaric acid nemakemikari ekurima36.
Mumakore achangopfuura, musika weMA wakaona shanduko yakakosha. Muna 2024, mitengo yakadzikira ne17.05%, kutanga pa7,860 RMB/ton uye ichipera pa6,520 RMB/tani nekuda kwekuwandisa uye kushayiwa kusimba kubva kuchikamu chezvivakwa, mutengi mukuru weUPR36. Nekudaro, kukwira kwemitengo kwenguva pfupi kwakaitika panguva yekumira kwekugadzira, senge Wanhua Chemical yekudzima kusingatarisirwe muna Zvita 2024, iyo yakasimudza mitengo muchidimbu ne1,000 RMB/ton3.
Kubva muna Kubvumbi 2025, mitengo yeMA inoramba ichichinja, ine makotesheni kubva pa6,100 kusvika 7,200 RMB/ton muChina, zvichikonzerwa nezvinhu zvakaita sembishi (n-butane) mutengo uye kuderera kwechido chekuchinja27. Musika unotarisirwa kuramba uri pasi pekumanikidzwa nekuda kwekuwedzera huwandu hwekugadzira uye kudzikisira kudiwa kubva kumatunhu echinyakare, kunyangwe kukura mumotokari uye zvinhu zvinoomesesa zvinogona kupa rubatsiro.
Nguva yekutumira: Kubvumbi-08-2025