Maleic anhydride (MA) chinhu chakakosha cheorganic chinoshandiswa zvakanyanya muindasitiri yemakemikari. Mashandisirwo ayo makuru anosanganisira kugadzirwa kwema polyester resins asina kuguta (UPR), ayo akakosha mukugadzira mapurasitiki akasimbiswa nefiberglass, machira, uye zvikamu zvemotokari. Pamusoro pezvo, MA inoshanda senzira yekutanga ye1,4-butanediol (BDO), inoshandiswa mumapurasitiki anoora, nezvimwe zvinobva muzvinhu zvakaita sefumaric acid nemakemikari ekurima36.
Mumakore achangopfuura, musika weMA wakasangana nekuchinja kukuru. Muna 2024, mitengo yakaderera ne17.05%, ichitanga pa7,860 RMB/ton uye ichipera pa6,520 RMB/ton nekuda kwekuwanda kwezvinhu uye kushaikwa kwezvinodiwa kubva kuchikamu chezvivakwa, icho chinova mutengi mukuru weUPR36. Zvisinei, mitengo yakakwira kwenguva pfupi panguva yekumira kwekugadzira, senge kuvharwa kweWanhua Chemical kusingatarisirwi muna Zvita 2024, uko kwakasimudza mitengo kwenguva pfupi ne1,000 RMB/ton3.
Kubva muna Kubvumbi 2025, mitengo yeMA ichiri kuramba ichichinja-chinja, nemitengo inotangira pa6,100 kusvika 7,200 RMB/tani muChina, zvichikonzerwa nezvinhu zvakaita semitengo yezvinhu zvisina kugadzirwa (n-butane) uye kudiwa kuri kuderera27. Musika unotarisirwa kuramba uri pasi pekumanikidzwa nekuda kwekuwedzera kwesimba rekugadzira uye kudzikira kwekuda kwezvinhu kubva muzvikamu zvechinyakare, kunyangwe kukura kwezvinhu zvemotokari nezvinhu zvinoora kunogona kupa rutsigiro.
Nguva yekutumira: Kubvumbi-08-2025