Ukusetshenziswa okusha kwe-dichloromethane (DCM) okwamanje akugxilile ekwandiseni indima yayo yendabuko njengesinyibilikisi kodwa kunalokho kugxile “ekusetshenzisweni nasekuphathweni kwayo ngokuphephile nangendlela ephumelelayo” kanye nokuhlola inani layo eliyingqayizivele emikhakheni ethile yobuchwepheshe obuphezulu.
I. Ukusungula Izinqubo: Njengethuluzi Lenqubo Eliluhlaza Nelisebenza Kahle
Ngenxa yokuguquguquka kwayo okuhle kakhulu, iphuzu lokubila eliphansi, kanye ne-solvency, i-DCM isetshenziswa "njenge-process aid" ephumelelayo kwezobuchwepheshe obusha kunokuba njengengxenye yomkhiqizo wokugcina, ngaleyo ndlela kunciphisa ukusetshenziswa kanye nokukhishwa kwegesi.
1.I-ejenti Ephumelelayo Yokudiliza Yokukhiqizwa Kwe-Polyolefin
Ukusungula izinto ezintsha: Ezinye izinkampani zithuthukise ubuchwepheshe obufaka i-DCM njenge-ejenti yokususa izikulufo enqubweni yokuqedwa kwezikulufo zama-polyolefin (isb., i-POE).
Inzuzo: I-DCM inciphisa ngempumelelo ukujiya kwezinto kanye nokucindezela okuyingxenye kobuso, ithuthukisa kakhulu ukusebenza kahle kokususa ama-monomers asele kanye nama-compounds e-volatible organic. Le nqubo inezidingo eziphansi zemishini kanye nokusebenza kahle kwezindleko eziphakeme, okwenza ibe yonga amandla futhi isebenze kahle uma kuqhathaniswa nokuqedwa kwe-vacuum ephezulu noma ukushisa okuphezulu.
2.I-Green Reaction Medium Yokwenziwa Kwemithi
Ukusungula izinto ezintsha: Embonini yezemithi, i-DCM isalokhu inzima ukuyishintsha ngokuphelele ngenxa yokuqina kwayo. Ukusungula izinto ezintsha kusekuhlanganiseni nobuchwepheshe obuthuthukisiwe bokusabela kanye nezinqubo zokuvuselela kabusha ukuze kufezwe ukujikeleza kwegazi okuvaliwe.
Isicelo: Ihlanganiswe ne-continuous flow chemistry kanye ne-automated synthesis reactors, i-DCM solvent iphinda isetshenziswe futhi ihlanzwe ngesikhathi sangempela ngezinhlelo zokubuyisa ukujiya eziku-inthanethi ezakhelwe ngaphakathi, okunciphisa kakhulu ukusetshenziswa kwe-single-batch kanye nezingozi zokuchayeka.
II. Ubuchwepheshe Obuyindilinga: Ukuvuselela Nokuwohloka Okusebenzayo
Ngenxa yemithetho eqinile yezemvelo, kuye kwenziwa izinto ezintsha ezibalulekile kubuchwepheshe bokuvuselela i-DCM kanye nokwelashwa kwepayipi.
1.Ubuchwepheshe Bokunciphisa Umfutho Wemishini Osebenzisa Amandla (i-MVR)
Ukusungula izinto ezintsha: Ubuchwepheshe be-Mechanical Vapor Recompression (MVR) busetshenziselwa ukubuyisa umswakama wegesi engcolile ye-DCM enezinga eliphezulu lokuhlushwa.
Inzuzo: Ama-compressor e-DCM vapor amelana nokugqwala futhi azinzile kakhulu athuthukiswe yizinkampani ezifana neChongtong Group angasebenzisa kabusha amandla e-steam yesibili, anciphise ukusetshenziswa kwamandla okusebenza okuphelele ngaphezu kuka-40%, okwenza kube lula ukubuyisa i-DCM ngendlela ephumelelayo neyongayo.
2.Ubuchwepheshe Bokuwohloka Kwe-Catalytic Efficiency High-Efficiency
Ukusungula izinto ezintsha: Ukuthuthukisa ama-catalyst amasha ukuze aqede i-DCM ngempumelelo nangokuphelele ibe izinto ezingenabungozi emazingeni okushisa aphansi (70-120°C).
III. Izicelo Ezikhethekile Ekukhiqizeni Okusezingeni Eliphezulu kanye Nezinto Ezintsha
Kweminye imikhakha yesimanje lapho izidingo zokusebenza kwezinto ezibonakalayo ziphezulu kakhulu, izakhiwo ezihlukile ze-DCM zenza ukuthi ingasetshenziswa okwesikhashana.
1.Ukucutshungulwa Kwezinto Ezisebenza Ngogesi Wesithombe
Ukusetshenziswa: Ekulungiseleleni amaseli elanga e-perovskite, izendlalelo ezikhipha ukukhanya kwe-OLED, kanye nama-photoresist aphezulu, kudingeka amafilimu amancane afanayo ahlanzekile kakhulu. Ngenxa yokuncibilika kwawo okuhle kakhulu kanye nephuzu lokubilisa eliphakathi kwama-polymer amaningi asebenza kahle nama-molecule amancane, i-DCM isalokhu ingenye yezinyibilikisi ezikhethwayo zelebhu kanye nokulungiselela ngokunemba okuncane kwamafilimu asezingeni eliphezulu.
2.Ukukhishwa Koketshezi Okubaluleke Kakhulu
Ukusetshenziswa: I-DCM ingasetshenziswa njengesiguquli noma i-co-solvent ihlanganiswe ne-CO₂ ebaluleke kakhulu yokukhipha okuphumelelayo nokukhetheka kakhulu kwamakhemikhali athile (isb. ama-alkaloid, amafutha abalulekile) emikhiqizweni yemvelo. Ukusebenza kahle kokukhipha kanye nokukhetha kwayo kuphakeme kunoketshezi lwe-CO₂ olubaluleke kakhulu.
IV. Isifinyezo kanye Nombono
Sekukonke, ukusetshenziswa okusha kwe-dichloromethane kuhamba ngezindlela ezimbili ezicacile:
Ukusungula Inqubo: Ukushintsha kusuka "ekusetshenzisweni okuvulekile" kuya "ekujikelezeni okuvaliwe," kusetshenziswa njengendlela yokusebenza ephumelelayo ehambisana nobuchwepheshe bokuvuselela obuthuthukisiwe, ngenhloso yokugcina yokunciphisa ukusetshenziswa kwenetha kanye nokukhishwa kwegesi endaweni ezungezile.
Ukusungula Izinto Ezintsha: Ukugcina isikhundla sayo emikhakheni ethile yobuchwepheshe obuphezulu lapho kunzima ukuyishintsha khona (isb., imithi esezingeni eliphezulu, izinto zikagesi) ngokuhlanganiswa nezinye ubuchwepheshe obuthuthukisiwe ukuze kusetshenziswe inani layo eliyingqayizivele.
Intuthuko yesikhathi esizayo izoqhubeka nokuzungeza isihloko esithi “kuphephile, kuluhlaza, futhi kusebenza kahle kakhulu.” Ngakolunye uhlangothi, ucwaningo lwezinyibilikisi ezingasetshenziswa njengezingabuthi kakhulu luzothuthuka, kanti ngakolunye uhlangothi, ubuchwepheshe bokwenza ngcono ukusetshenziswa nokulahlwa kwe-DCM buzoqhubeka nokukhula, bunciphise izingozi ezimweni lapho ukusetshenziswa kwayo kungenakugwenywa khona.
Isikhathi sokuthunyelwe: Septhemba 15-2025