Yini i-burllyline glycol? Ukuhlaziywa okuphelele kwaleli Chemical
Yini i-butanediol? Igama elithi Butanediol lingazwakala lingajwayelekile kubantu abaningi, kepha i-butanediol (1,4-butanediol, BDO) lidlala indima ebaluleke kakhulu embonini yamakhemikhali nasekuphileni kwansuku zonke. Le ndatshana izokunikeza ukuhlaziya okuningiliziwe kwezakhiwo nokusetshenziswa kwe-butanediol nokubaluleka kwayo ezimbonini ezahlukahlukene.
I. Izakhiwo zamakhemikhali kanye nokwakheka kwe-butanediol
Yini i-butanediol? Ukusuka endaweni yamakhemikhali yokubuka, i-butanediol iyindawo ehlanganisiwe enamaqembu amabili we-hydroxyl (-OH) kanye nefomula yamakhemikhali yi-C4H10O2. Kuwuketshezi olungenamibala, olunombala olune-solubility oluhle, olungachithwa ezinhlobonhlobo ze-solvents enjengamanzi, ama-alcohols, ama-ketones, njll. Isakhiwo samangqamuzana se-butanediol siqukethe ama-h4h10o2. Ngenxa yokwakheka kwayo kwamangqamuzana kuqukethe amaqembu amabili e-hydroxyl, i-butanediol ekuphenduleni kwamakhemikhali akhombisa ukuvumelanisa okuphezulu, angabamba iqhaza ekuhlolweni, ukusheshisa, ama-polycondenation kanye nokunye ukusabela kwamakhemikhali.
Okwesibili, ukusetshenziswa okuyinhloko kwe-butanediol
Ukuhlola lokho i-Butanediol akunakuhlukaniswa nohlelo lwayo olubanzi embonini. I-Butylene Glycol isetshenziswa ikakhulukazi ekukhiqizweni kwama-polymers, izixazululo kanye nabanye abaphakathi ababalulekile bamakhemikhali.
Ukukhiqizwa kwe-polymer: I-Butanediol iyinto ebalulekile eluhlaza ebonakalayo yokukhiqizwa kwe-polyurethane nama-polyester resen. Ekukhiqizweni kwe-polyurethane, isetshenziswa njenge-extender ye-chain kanye nezinto ezithambile zezingxenye ukunikeza umkhiqizo omuhle wokuqina kanye nokugqoka; E-Polyester Production, i-Butylene Glycol impahla ebalulekile yokukhiqizwa kwe-thermoplastic polyester (isib. I-PBT) kanye ne-pollester resen yase-pollert.

I-Solvents: Ngenxa ye-solubility yayo enhle, i-burylene glycol isetshenziswa njenge-solvent kunhlobonhlobo yezicelo embonini yama-elekthronikhi, ukugqoka, okokuhlanza izimonyo kanye nezimonyo. Ikakhulu kwizimonyo, uBelylene Glycol wenza okuhlekisa futhi ahleleke, asize ukuthuthukisa ukuqina komkhiqizo kanye ne-actility yomkhiqizo.

Amakhemikhali aphakathi: UBullene Glycol ungumsunguli obalulekile wokukhiqizwa kwe-tetrahydroforuran (thf) ne-gamma-butrolactone (i-GBL) esetshenziswa kakhulu embonini, lapho i-gbl ingumkhakha obalulekile osetshenziswa ekhiqizweni yemithi yokubulala izinambuzane, amakhamishini kanye nama-sol.

Okwesithathu, inqubo yokukhiqiza ye-butanediol
Ukuqonda ukuthi yiliphi i-Butanediol, futhi udinga ukugxila kwinqubo yalo yokukhiqiza. Njengamanje, izindlela eziphambili zokukhiqiza zeButanediol zifaka:
Indlela ye-Aldehyde-Alcohol Accensation: Le yinqubo esetshenziswa kakhulu yokukhiqiza, ngokusebenzisa ukubuyiselwa kwe-acetaldehyde kanye ne-formaldehyde ukukhiqiza i-1,3-dioxane, bese kuthi u-hydrolyled ukukhiqiza i-butanediol. Le ndlela inezinzuzo zenqubo evuthiwe kanye nezindleko eziphansi ezibonakalayo ezingavuthiwe.

Indlela ye-Ethylene Oxide: I-Ethylene oxide yenziwa nge-carbon dioxide ngaphansi kwesenzo se-catalyst ukukhiqiza i-vinyl carbonate, esele ngydrolysed ukukhiqiza i-butanediol. Izimo zokuphendula zale ndlela zimnene, kepha ukutshalwa kwezimali kwemishini kuphakeme.

IV. Amathemba emakethe we-butanediol
Ukuxoxa ngalokho i-Butanediol, kuyadingeka futhi ukuhlola amathemba alo emakethe. Ngokwesidingo esikhulayo se-Global Sokufunwa Kwezinto Zokusebenza Okuphezulu, isidingo semakethe seButanediol futhi sikhula ngonyaka ngonyaka. Ikakhulu emkhakheni wemikhiqizo ye-elekthronikhi, izimoto ezintsha zamandla kanye nezingubo zemvelo ezinobungane, isidingo se-butanediol siyathembisa.
Ngokuthuthuka kobuchwepheshe, ucwaningo kanye nokuthuthukiswa kwe-Butanediol esekwe kwi-Bio kuyathuthuka kancane kancane. Ukusetshenziswa kwalolu hlelo lokusebenza oluvuselelekayo kuzophinde kwandise indawo yemakethe yeButaNediol futhi kusize nokunciphisa ukuncika kwezinsizakusebenza ze-petrochemical.
Ukugcina
Yini i-butanediol? Akuyona kuphela impahla ebalulekile eluhlaza enamakhemikhali enezicelo ezahlukahlukene ezimbonini eziningana, kepha futhi iheha ukunakwa ngezakhiwo zayo zamakhemikhali ezinhle kakhulu kanye nokusebenza okuhlukahlukene. Ngokuzayo, ngentuthuko yezobuchwepheshe nokukhulisa ukufunwa kwemakethe, i-butanediol kuzokhombisa inani layo elibalulekile emikhakheni eminingi.