EP4087952

METHOD FOR THE RECOVERY OF PLATINUM GROUP METALS FROM CATALYSTS COMPRISING SILICON CARBIDE

Filed

Dec 18, 2020

Technology

Chemistry · Materials, metallurgy

UPC cases

Ownership history

As recorded at the EPO. Transfers made after the opposition period are recorded in national registers and may be missing here.

Umicoresince Oct 14, 2022; EPO record ends Feb 16, 2024

Abstract

The invention concerns a process suitable for the recovery of platinum group metals (PGM) present in PGM-bearing catalysts comprising silicon carbide (SiC). More particularly, the process for the recovery of PGM present in PGM-bearing catalysts comprising SiC, comprises the steps of preparing a metallurgical charge by mixing the PGM-bearing catalysts with an Fe-oxide compound in an amount sufficient to oxidize at least 65% of the SiC, and feeding the metallurgical charge and slag formers to a smelting furnace operating in conditions susceptible to form a liquid Fe-based bullion, which contains PGM, and a liquid slag.Good to excellent PGM yields are obtained.

From the international application WO2021140012

Litigation history

Date	Case	Division	Type	Outcome	Parties
Apr 14, 2026	UPC CFI 1612/2025	The Hague LD	Infringement	Locked	Umicore NV/SA +8

Additional proceedings on this patent

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