Patent · US Expired

Process for recovering germanium

US5277882A · kind A · utility

2Cited by

10References

26Claims

0Family size

Assignee

Union Miniere s.a. · BE

Inventors

Jean H. Vliegen · Lichtaart, BE
Guy G. Haesebroek · Mortsel, BE
Achille De Schepper · Kasterlee, BE

Key dates

Filing date	Sep 25, 1991
Grant date	Jan 11, 1994
Priority date	—
Expiry date	Sep 25, 2011

Classification

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

Abstract

A germanium bearing sulphate solution containing indium and/or gallium is brought at pH 1-2.5 into contact with an organic phase, containing a substituted 8-hydroxyquinoline and an acid organophosphorus compound. So, in addition to germanium, indium and gallium are also extracted from the sulphate solution.

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