I-Methylene Chloride iyisithako esibalulekile sezimboni, futhi ukuthuthukiswa kwayo kwemboni kanye nocwaningo lwesayensi kuyizinto ezidinga ukunakwa okukhulu. Lesi sihloko sizochaza intuthuko yayo yakamuva kusukela ezicini ezine: isakhiwo semakethe, ukuguquguquka kokulawula, izitayela zamanani, kanye nenqubekela phambili yakamuva yocwaningo lwesayensi.
Isakhiwo Semakethe: Imakethe yomhlaba wonke igxile kakhulu, lapho abakhiqizi abathathu abaphambili (njengeJuhua Group, Lee & Man Chemical, kanye neJinling Group) bephethe isabelo semakethe esihlangene esingaba ngu-33%. Isifunda sase-Asia-Pacific yisona makethe enkulu kunazo zonke, esibalelwa cishe ku-75% wesabelo.
Amandla Okulawula:I-US Environmental Protection Agency (EPA) ikhiphe umthetho wokugcina ngaphansi koMthetho Wokulawula Izinto Ezinobuthi (TSCA) ovimbela ukusetshenziswa kwe-methylene chloride emikhiqizweni yabathengi efana ne-paint strippers kanye nokubeka imikhawulo eqinile ekusetshenzisweni kwezimboni.
Izitayela Zentengo: Ngo-Agasti 2025, ngenxa yamazinga aphezulu okusebenza embonini okuholele ekuhlinzekweni okwanele, kanye nokufunwa okungenasidingo ngesikhathi sokuphumula kanye nomdlandla wokuthenga onganele, amanani avela kwabanye abakhiqizi ehle ngaphansi kuka-2000 RMB/ton.
Isimo Sokuhweba:Kusukela ngoJanuwari kuya kuMeyi 2025, ukuthunyelwa kwe-methylene chloride eShayina kwanda kakhulu (unyaka nonyaka +26.1%), okuqondiswe ikakhulukazi eNingizimu-mpumalanga ye-Asia, eNdiya, nakwezinye izifunda, okusiza ekunciphiseni ingcindezi yokuphakelwa kwempahla yasekhaya.
Imingcele Ocwaningweni Lwezobuchwepheshe Lwakamuva
Emkhakheni wocwaningo lwesayensi, izifundo nge-methylene chloride kanye namakhemikhali ahlobene nazo ziya ngokuya zibheke ezindleleni eziluhlaza nezisebenza kahle kakhulu. Nazi izinkomba eziningana eziphawulekayo:
Izindlela Zokwenziwa Okuluhlaza:Ithimba locwaningo elivela eShandong University of Technology lashicilela ucwaningo olusha ngo-Ephreli 2025, liphakamisa umqondo omusha we-"redox eqhutshwa ngamandla kazibuthe." Lobu buchwepheshe busebenzisa insimu kazibuthe ejikelezayo ukukhiqiza amandla e-electromotive abangelwayo kumqhubi wensimbi, ngaleyo ndlela kuqhutshwa ukusabela kwamakhemikhali. Lolu cwaningo luphawule ukusetshenziswa kokuqala kwaleli cebo ekushintsheni kwe-metal catalysis, okufezwe ngempumelelo ukuhlanganiswa okunciphisayo kwama-aryl chloride angasebenzi kahle nama-alkyl chloride. Lokhu kunikeza indlela entsha yokusebenzisa izibopho zamakhemikhali ezingasebenzisi amandla (njengezibopho ze-C-Cl) ngaphansi kwezimo ezithambile, okungenzeka ukuthi zisetshenziswe kabanzi.
Ukuthuthukiswa Kwenqubo Yokuhlukanisa:Ekukhiqizweni kwamakhemikhali, ukuhlukaniswa kanye nokuhlanzwa kuyizinyathelo ezibalulekile ezisebenzisa amandla. Olunye ucwaningo lugxile ekwakheni idivayisi entsha yokuhlukanisa izingxube zokusabela ekuhlanganisweni kwe-methylene chloride. Lolu cwaningo luhlole ukusebenzisa i-methanol njengento ezikhipha yona ukuze kuhlukaniswe izingxube ze-dimethyl ether-methyl chloride enokuguquguquka okuphansi, okuhlose ukuthuthukisa ukusebenza kahle kokuhlukaniswa kanye nokwenza ngcono amapharamitha enqubo.
Ukuhlola Izicelo Ezinhlelweni Ezintsha Ze-solvent:Nakuba kungabandakanyi ngqo i-methylene chloride, ucwaningo lwe-deep eutectic solvents (DES) olwanyatheliswa ku-PMC ngo-Agasti 2025 lubaluleke kakhulu. Lolu cwaningo lunikeze ukuqonda okujulile ngesimo sokusebenzisana kwama-molecule ngaphakathi kwezinhlelo ze-solvent. Intuthuko kubuchwepheshe obunjalo be-solvent eluhlaza, ngokuhamba kwesikhathi, inganikeza amathuba amasha okufaka esikhundleni se-solvents ethile yendabuko eguquguqukayo, kufaka phakathi i-methylene chloride.
Ngamafuphi, imboni ye-methylene chloride okwamanje isesikhathini sokuguquka esibonakala ngamathuba nezinselele.
Izinselelekubonakala kakhulu emithethweni yezemvelo eqinile (ikakhulukazi ezimakethe ezifana neYurophu ne-US) kanye nokuncipha kwesidingo okulandelayo kwezinye izindawo zokusetshenziswa zendabuko (njengeziqeshana zokupenda).
AmathubaNokho, kusesidingo esiqhubekayo ngaphakathi kwemikhakha lapho kungakatholakali khona ezinye izinto ezifanelekile (njengemithi kanye nokuhlanganiswa kwamakhemikhali). Ngesikhathi esifanayo, ukuthuthukiswa okuqhubekayo kwezinqubo zokukhiqiza kanye nokwanda kwezimakethe zokuthumela kwamanye amazwe nakho kunikeza umfutho ekuthuthukisweni kwemboni.
Intuthuko yesikhathi esizayo kulindeleke ukuthi ithambekele kakhulu emikhiqizweni ekhethekile esebenza kahle kakhulu, ehlanzekile kakhulu kanye nokusungula izinto ezintsha kwezobuchwepheshe okuhambisana nezimiso ze-chemistry eluhlaza.
Isikhathi sokuthunyelwe: Septhemba-26-2025