Patent · US Expired

Method for the decomposition of ammonium formates in reaction mixtures containing polyol

US6914164B2 · kind B2 · utility

2Cited by

10References

12Claims

0Family size

Assignee

BASF SE

Inventors

Michael Koch · Speyer, DE
Alexander Wartini · Heidelberg, DE
Tilman Sirch · Schifferstadt, DE
Matthias Dernbach · Eppelheim, DE

Key dates

Filing date	Oct 18, 2002
Grant date	Jul 5, 2005
Priority date	—
Expiry date	Oct 18, 2022

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C29/88
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

A method for removing trialkyl ammonium formate from a methylol alkanes obtained by condensation of formaldehyde with a higher aldehyde. The invention is characterized in that trialkyl ammonium formate is decomposed at a high temperature using catalysts containing at least one metal from groups 8-12 of the classification of elements in the presence of gas containing hydrogen. The method makes it possible to separate trialkyl ammonium formate according to the organic Cannizzaro method and according to the hydrogenation method.

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