Patent · US Active

Process for recovery of noble metals from functionalised, noble metal-containing adsorption materials

US8475749B2 · kind B2 · utility

0Cited by

3References

14Claims

0Family size

Assignee

HERAEUS PRECIOUS METALS GMBH & CO. KG · DE

Inventors

Joachim Kralik · Hanau, DE
Martin Stettner · Salzbergen, DE
Stefanie Fuchs Alameda · Trochtelfingen, DE

Key dates

Filing date	Mar 15, 2012
Grant date	Jul 2, 2013
Priority date	—
Expiry date	Mar 15, 2032

Classification

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

Abstract

A method recovers noble metals from noble metal-containing compositions and includes steps of (i) providing a noble metal-containing composition containing an adsorption agent that is based on an inorganic material and is functionalized by organic groups and has at least one noble metal adsorbed to it, and (ii) ashing of the noble metal-containing composition provided in step (i) in order to adjust a residual carbon content of at most 10% by weight, relative to the total weight of the noble metal-containing composition after ashing, to obtain an ashed composition.

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