Patent · US Active

Allyl acetate purification

US8309758B2 · kind B2 · utility

0Cited by

9References

18Claims

0Family size

Assignee

Lyondell Chemical Technology, L.P. · US

Inventors

Stephen H. Harris · Kennett Square, US
Shaw-Chan Lin · West Chester, US

Key dates

Filing date	Dec 17, 2009
Grant date	Nov 13, 2012
Priority date	—
Expiry date	Dec 16, 2030

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C67/60
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

A process for purifying allyl acetate is disclosed. An acetoxylation mixture is distilled at elevated pressure to remove propylene and generate a first bottoms mixture comprising allyl acetate, acetic acid, acrolein, allyl diacetate, and 3-acetoxypropionaldehyde. The first bottoms mixture is flash vaporized, and the resulting vapor is contacted with a solid acidic catalyst under conditions effective to decompose allyl diacetate and 3-acetoxypropionaldehyde. The flashed product, which comprises allyl acetate, acetic acid, and acrolein, is then distilled to remove acrolein and generate a second bottoms mixture comprising allyl acetate and acetic acid. The second bottoms mixture can be used to manufacture allyl alcohol.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.