Patent · US Expired

Process for the recovery of metals from catalysts

US4384885A · kind A · utility

4Cited by

6References

7Claims

0Family size

Assignee

Hermann C. Starck Berlin GmbH & Co. KG · DE

Inventors

Hans Muller · Kirkland, US
Bruno E. Krismer · Goslar, DE
Wilfried Sottman · Goslar, DE

Key dates

Filing date	Mar 4, 1980
Grant date	May 24, 1983
Priority date	—
Expiry date	Mar 4, 2000

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P10/20
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A process for the recovery of valuable metals from spent desulfurization catalyst wherein the catalyst, which has not been subjected to oxidative roasting, is thermally reduced in the presence of carbon and calcium oxide.

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