REFINING OF PRECIOUS METALS AND PLATINUM GROUP METALS

Our company is in the business of recovering and refining gold and silver, as well as the six platinum group metals: platinum, palladium, rhodium, rutheniuim, iridium and osmium.
 

Gold sponge drying under infra-red lamps

 

 
Gold
Our Gold has a minimum purity of 99.5% plus and is sold in sponge form, but can also be supplied as intermediate salts, granules or bars. 
 

Silver
Silver concentrates from mines, metallurgical facilities and consumer and industrial wastes are processed to produce 99,99% silver.
This is subsequently sold to our group company Silverchem to manufacture value added products for a wide range of applications.

 

Platinum
Our Platinum has a purity of 99.95% plus and is usually sold in sponge form, but can also be supplied as granules or bars. A range of platinum based compounds can also be supplied, including colloidal platinum. Assay certificates for each batch are available.

 

Palladium
Our Palladium is sold with a minimum purity of 99.95% and is available in sponge form, but can also be supplied as granules, bars or intermediate salts. Gauteng Refinery's palladium feedstocks are sourced from a number of sources including process residues, electronic scrap, auto catalysts and scrap printed circuit boards. A range of palladium based compounds such as palladium chloride can be supplied.

 

Filtering gold bearing slurries

 

 

Osmium extraction process using glass reactor vessels

 

 
Rhodium
We process, refine and supply Rhodium at 99.9% purity and it is available in sponge and powder. Assay certificates for each batch are available. Ruthenium
Gauteng Refinery's Ruthenium is sold with a minimum purity of 99.9% plus, and is available in sponge form, but can also be supplied as intermediate salts.

 

Iridium
Iridium is sold with a minimum purity of 99.9% plus and is available in sponge form, but can also be supplied as intermediate salts.

 

Osmium
Gauteng Refinery is a leading global supplier of Osmium. It has a minimum purity of 99.8% and again assay certificates are available for each batch.

 

Please contact us for any product queries. You can also learn more about the detailed characteristics of these metals by downloading the document on "Quick Facts for Precious Metals and PGMs" here

Work at the Mintek based processing labs