Patent · US Active

Process to recover alcohol from an ethyl acetate residue stream

US8927784B2 · kind B2 · utility

1Cited by

133References

18Claims

0Family size

Assignee

Celanese International Corporation · US

Inventors

David Lee · Seabrook, US
Fred Ronald Olsson · Port Aransas, US
Adam Orosco · Houston, US
Nathan Kirk Powell · Waxahachie, US
Manuel Salado · Seabrook, US
Lincoln Sarager · Houston, US
R. Jay Warner · Houston, US
Radmila Jevtic · Houston, US
Victor J. Johnston · Houston, US

Key dates

Filing date	Nov 9, 2011
Grant date	Jan 6, 2015
Priority date	—
Expiry date	Mar 7, 2033

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C51/12
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid using a low energy process. The crude ethanol product is separated in a column to produce a distillate stream comprising acetaldehyde and a residue stream comprising ethanol, acetic acid, ethyl acetate and water. The ethanol product is recovered from the residue stream.

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