Patent · US Expired

Regeneration of caffeine-loaded activated carbon with hot water

US4506072A · kind A · utility

1Cited by

1References

3Claims

0Family size

Assignee

Hag Gf Aktiengesellschaft · DE

Inventors

Manfred Gehrig · Wolnzach, DE
Manfred Barthels · Bremen, DE
Hans Wienges · Bremen, DE

Key dates

Filing date	Apr 18, 1983
Grant date	Mar 19, 1985
Priority date	—
Expiry date	Apr 18, 2003

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D473/12
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The invention relates to a process for recovering caffeine adsorbed to activated carbon with simultaneous regeneration of the activated carbon in which the caffeine-loaded activated carbon is treated with water at a pressure of at least 86 bar and at a temperature of at least 300.degree. C.

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