I-Maleic anhydride (MA) yikhompawundi ebalulekileyo yendalo esetyenziswa kakhulu kwishishini leekhemikhali. Iinjongo zayo eziphambili ziquka ukuveliswa kwee-polyester resins ezingagcwaliyo (UPR), ezibalulekileyo ekwenzeni iiplastiki eziqiniswe ngefiberglass, ii-coating, kunye nezixhobo zemoto. Ukongeza, i-MA isebenza njengomzekelo we-1,4-butanediol (BDO), esetyenziswa kwiiplastiki ezinokubola, kunye nezinye izinto ezifana ne-fumaric acid kunye neekhemikhali zezolimo36.
Kwiminyaka yakutshanje, imakethi ye-MA ifumene utshintsho olukhulu. Ngo-2024, amaxabiso ehle nge-17.05%, eqala kwi-7,860 RMB/ton aze aphele kwi-6,520 RMB/ton ngenxa yokubonelela ngokugqithisileyo kunye nemfuno ebuthathaka evela kwicandelo lezindlu, eliyithengisi enkulu ye-UPR36. Nangona kunjalo, ukunyuka kwamaxabiso okwexeshana kwenzeke ngexesha lokumiswa kwemveliso, njengokuvalwa okungalindelekanga kweWanhua Chemical ngoDisemba ka-2024, okwanyusa amaxabiso okwethutyana nge-1,000 RMB/ton3.
Ukususela ngo-Epreli 2025, amaxabiso e-MA ahlala engaguquki, kunye neekowuteshini eziqala kwi-6,100 ukuya kwi-7,200 RMB/ton eTshayina, eziphenjelelwa zizinto ezifana neendleko zezinto eziluhlaza (n-butane) kunye notshintsho lwemfuno oluya phambili27. Imarike kulindeleke ukuba ihlale iphantsi koxinzelelo ngenxa yokwanda kwamandla emveliso kunye nokuncipha kwemfuno evela kumacandelo emveli, nangona ukukhula kwezinto zeemoto kunye nezinto ezibolayo kunokubonelela ngenkxaso ethile.
Ixesha leposi: Epreli-08-2025