Ib -txoj kev synthesis
Glycol ether acetate cov khoom tau txais los ntawm ib qho - cov tshuaj tiv thaiv ib kauj ruam siv EO / PO (ethylene oxide / propylene oxide) thiab ethyl acetate ua raw cov ntaub ntawv nyob rau hauv lub xub ntiag ntawm catalyst.
Qhov zoo: Cov txheej txheem tshuaj tiv thaiv yog streamlined, cov tshuaj tiv thaiv sib xyaw ua ke yog yooj yim, cov catalyst tau yooj yim tshem tawm tom qab cov tshuaj tiv thaiv, thiab cov khoom sib cais thiab cov txheej txheem tswj tau yooj yim.
Txoj kev Transesterification
Cov tshuaj tiv thaiv transesterification yog ua los ntawm acetate ester thiab glycol ether ua raw khoom; cawv yog tsim los ntawm -cov khoom, tsis txhob muaj kev phiv los ntawm cov dej.
Qhov zoo: Nws hla cov kev sib tw sib cais (xws li kev tsim azeotrope) uas muaj nyob rau hauv aqueous systems, uas ua rau muaj cov tshuaj tiv thaiv zoo.
Direct esterification txoj kev
Esterification yog ua los ntawm glycol ether thiab organic acid (acetic acid los yog propionic acid) ua raw khoom, nyob rau hauv lub xub ntiag ntawm ib tug acidic catalyst thiab ib tug azeotropic dehydrating neeg sawv cev; Qhov no yog tam sim no txoj hauv kev tseem ceeb rau kev tsim khoom ntawm glycol ether esters ob leeg hauv tsev thiab thoob ntiaj teb.
