Patent · US Active

Process for the preparation of ethanedinitrile

US8088351B2 · kind B2 · utility

0Cited by

10References

15Claims

0Family size

Assignee

LONZA LTD · CH

Inventors

Ellen Klegraf · Brig, CH
Thomas Grützner · Stuttgart, DE
Jan Keller · Lappersdorf, DE

Key dates

Filing date	Nov 9, 2009
Grant date	Jan 3, 2012
Priority date	—
Expiry date	Nov 9, 2029

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC01C3/003
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

The invention relates to a process for the preparation of ethanedinitrile, by reading hydrocyanic acid in the liquid phase with nitric acid in the presence of a cupric ion catalyst.

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