Patent · US Expired

Method for producing platinum

US6315811A · kind A · utility

1Cited by

3References

7Claims

0Family size

Assignee

W.C. Heraeus GmbH & Co. KG · DE

Inventors

Martin Stettner · Salzbergen, DE
Matthias Grehl · Frankfurt, DE
Horst Meyer

Key dates

Filing date	Jun 16, 2000
Grant date	Nov 13, 2001
Priority date	—
Expiry date	Jun 16, 2020

Classification

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

Abstract

A method is described for the preparation of platinum wherein first an aqueous solution of a hexahalogenoplatinate is passed through a cation exchanger and then the solution obtained, at a temperature T>+30.degree. C. and a pH of 0 to 4, is reduced by a reducing agent to precipitate in the form of a platinum sponge.

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