Patent · US Active

Hydrogenation and esterification to form diesters

US8338636B2 · kind B2 · utility

0Cited by

118References

21Claims

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Assignee

INVISTA North America S.a.r.l. · US

Inventors

Yanhui Sun · Wilmington, US
Richard P. Beatty · Newark, US

Key dates

Filing date	Aug 5, 2010
Grant date	Dec 25, 2012
Priority date	—
Expiry date	Jul 20, 2031

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C67/303
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

A process is disclosed which employs hydrogenation and esterification to form alkyl diesters. The process subjects an unrefined or otherwise not purified composition comprising maleic anhydride production residue to the processes of hydrogenation and esterification and forming diesters at high conversion efficiency.

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