Patent · US Active

Process to prepare ethylene amines

US8563778B2 · kind B2 · utility

2Cited by

9References

14Claims

0Family size

Assignee

AKZO NOBEL N.V. · NL

Inventors

Martin Stefan HANSON · Handen, SE
Leif Kenny Christian GUSTAFSON · Munkedal, SE
Johan Lif · Vaxholm, SE
Boris Kuzmanovic · Essen, DE
Ulf Schroder · Sundbyberg, SE

Key dates

Filing date	Dec 29, 2008
Grant date	Oct 22, 2013
Priority date	—
Expiry date	Jul 12, 2029

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C209/86
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The present invention relates to a process to prepare ethylene amines by the amination of ethylene oxide, ethylene glycol or ethanolamine in the presence of a catalyst, comprising a step wherein methylamine and/or ethylamine are removed from the reaction effluents.

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