[Umkhombandlela] Imakethe ye-butyl acetate eShayina ibhekene nokungalingani phakathi kokunikezwa kanye nesidingo. Uma kuqhathaniswa namanani abuthakathaka ezinto zokusetshenziswa, intengo yemakethe ibilokhu ingaphansi kwengcindezi eqhubekayo futhi yehla. Esikhathini esifushane, kunzima ukunciphisa kakhulu ingcindezi ekunikezelweni nasekudingweni kwemakethe, futhi ukwesekwa kwezindleko akwanele. Kulindeleke ukuthi intengo isazoshintshashintsha kancane kancane ngokwezinga lamanje.
Ngo-2025, intengo ye-butyl acetate emakethe yaseShayina ibonise ukwehla okuqhubekayo, kanye nokwehla kwamuva nje okuqhubeka kanye namanani ephula amazinga aphansi angaphambilini ngokuphindaphindiwe. Kusukela ekupheleni kuka-Agasti 19, intengo emaphakathi emakethe yaseJiangsu yayingu-5,445 yuan/ton, yehle ngo-1,030 yuan/ton kusukela ekuqaleni konyaka, okumele ukwehla ngo-16%. Lo mjikelezo wokuguquguquka kwentengo uthinteke kakhulu ngokusebenzisana kwezinto eziningi ezifana nobudlelwano bokunikezwa kanye nokufunwa kanye nezindleko zezinto zokusetshenziswa.
1. Umthelela wokushintshashintsha emakethe yezinto zokusetshenziswa
Ukuguquguquka kwemakethe yezinto zokusetshenziswa kungenye yezinto ezibalulekile ezithinta izimo zemakethe ze-butyl acetate. Phakathi kwazo, imakethe ye-acetic acid ibone ukwehla kwentengo okuqhubekayo ngenxa yobudlelwano obubuthakathaka bokuphakelwa kanye nesidingo. Kusukela ngomhlaka-19 Agasti, intengo ethunyelwe ye-glacial acetic acid esifundeni saseJiangsu yayingu-2,300 yuan/ton, yehle ngo-230 yuan/ton kusukela ekuqaleni kukaJulayi, okumele ukwehla okukhulu. Lo mkhuba wentengo ube nengcindezi esobala ohlangothini lwezindleko ze-butyl acetate, okwaholela ekubuthaka kwamandla asekelayo kusukela ekugcineni kwezindleko. Ngesikhathi esifanayo, imakethe ye-n-butanol, ethintwe yizici ezingavamile njengokugcwala kwempahla emachwebeni, yabona ukuma kwesikhashana kokwehla kanye nokubuyela emuva ngasekupheleni kukaJulayi. Kodwa-ke, ngokombono wephethini yokunikezwa kanye nesidingo iyonke, akukho ukuthuthuka okuyisisekelo ezisekelweni zemboni. Ekuqaleni kuka-Agasti, intengo ye-n-butanol yabuyela esimweni sokwehla, okubonisa ukuthi imakethe isantula amandla aqhubekayo okukhuphuka.
2. Isiqondiso esivela ebudlelwaneni bokuphakelwa kanye nokufunwa
Ubudlelwano bokunikezwa kanye nesidingo yisona sici esiyinhloko esithinta ukuguquguquka kwamanani emakethe ye-butyl acetate. Njengamanje, ukuphikisana phakathi kokunikezwa kanye nesidingo emakethe kuvelele kakhulu, futhi izinguquko ohlangothini lokunikezwa zinomthelela ocacile ekuthambekeni kwentengo. Maphakathi no-Agasti, ngokuqala kabusha kokukhiqiza efektri enkulu esifundeni saseLunan, ukunikezwa kwemakethe kwanda kakhulu. Kodwa-ke, uhlangothi lwesidingo oluphansi lwenze kabi. Ngaphandle kwezinye izimboni ezinkulu esifundeni saseJiangsu ezathola ukwesekwa okuthile ngenxa yokwenziwa kwama-oda okuthumela kwamanye amazwe, ezinye izimboni ngokuvamile zibhekene nengcindezi ekuthunyelweni kwemikhiqizo, okwaholela ekuthambekeni kokwehla kwentengo yemakethe.
Uma sibheka phambili, ngokombono wezindleko, ukukhiqizwa kwe-butyl acetate kusagcina inzuzo ethile njengamanje. Ngaphansi kokuxhumana kwezinto eziningi ezifana nezindleko kanye nokuguquguquka kwesidingo sokuhlinzekwa, kulindeleke ukuthi intengo ye-n-butanol ingase yakhe ipulatifomu yokwehla ngezinga lamanje. Nakuba isizini yesidingo sendabuko sesifikile, izimboni ezinkulu ezikhuphukayo azikabonisi izimpawu zokuphakama okukhulu kwesidingo. Ngisho noma i-n-butanol yakha ngempumelelo phansi, uma kubhekwa ukulandelwa okunganele kwesidingo esikhuphukayo, isikhala sokubuya kwemakethe esikhathini esifushane kulindeleke ukuthi silinganiselwe. Ngaphezu kwalokho, uhlangothi lwesidingo sokuhlinzekwa kwemakethe ye-acetic acid lunomthelela olinganiselwe ekukhuphukeni kwentengo, kuyilapho abakhiqizi besabhekene nezingcindezi ezithile zezindleko. Kulindeleke ukuthi imakethe izogcina iphethini eguquguqukayo, kanye nomkhuba ojwayelekile ongase ube sesimweni esibuthakathaka nesingapheli.
Ngokombono wokuhlinzekwa kanye nesidingo, yize isizini yendabuko yesidingo esiphezulu isondela futhi kukhona okulindelwe ukuthuthuka kwesidingo esingezansi, izinga lokusebenza kwemboni yamanje lisezingeni eliphezulu, futhi amanye amafektri amakhulu asabhekene nezingcindezi ezithile zokuthunyelwa kwezimpahla. Njengoba kunikezwe inzuzo yokukhiqiza yamanje, kulindeleke ukuthi abakhiqizi basazoqhubeka nokugcina isu lokusebenza eligxile ekuthunyelweni kwezimpahla, okuholela ekunganele kwamandla okukhulisa amanani emakethe.
Ngokuphelele, kulindeleke ukuthi imakethe ye-butyl acetate izoqhubeka nokugcina ukuguquguquka okuncane okuzungeze izinga lamanje lentengo esikhathini esifushane.
Isikhathi sokuthunyelwe: Agasti-21-2025