Process for the preparation of alkylene glycol

Details Process for the preparation of alkylene glycol Process for the preparation of alkylene glycol

C - Chemistry, Metallurgy

07

C

C07C 29/12 (2006.01) C07C 31/20 (2006.01) C07D 301/32 (2006.01) C07D 317/38 (2006.01)

Patent

CA 2720219

The invention provides a process for the preparation of an alkylene glycol from an alkene wherein conversion of alkylene oxide to alkylene glycol occurs in an alkylene oxide absorber and optionally in further reactors, and alkylene glycol is extracted from fat absorbent by contacting the fat absorbent with a lean solvent, thereby producing fat solvent, recovering alkylene glycol from the fat solvent and recycling the lean solvent.

La présente invention concerne un procédé de préparation dun alkylènegycol à partir dun alcène dans lequel la conversion doxyde dalkylène en alkylèneglycol se produit dans un absorbeur doxyde dalkylène et facultativement dans des réacteurs supplémentaires, et lalkylèneglycol est extrait à partir de labsorbant hydrophobe par contact de labsorbant hydrophobe avec un solvant pauvre, de manière à produire un solvant hydrophobe, récupération de lalkylèneglycol à partir du solvant hydrophobe et recyclage du solvant pauvre.

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