Patent · US Active

Processes for the recovery of ruthenium from materials containing ruthenium or ruthenium oxides or from ruthenium-containing noble metal ore concentrates

US8252252B2 · kind B2 · utility

0Cited by

6References

6Claims

0Family size

Assignee

W. C. Heraeus GmbH · DE

Inventors

Horst Meyer
Matthias Grehl · Frankfurt, DE
Christian Nowottny · Nidderau, DE
Martin Stettner · Salzbergen, DE
Joachim Kralik · Hanau, DE

Key dates

Filing date	Mar 18, 2011
Grant date	Aug 28, 2012
Priority date	—
Expiry date	Mar 18, 2031

Classification

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

Abstract

Processes for the recovery of ruthenium from materials containing ruthenium or ruthenium oxides or from ruthenium-containing noble metal ore concentrates, with the steps of Optionally, ruthenium is separated off by distillation, instead of precipitation, following step B, with the steps of

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