precious metals Articles

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Activated Carbon for Precious Metals Recovery

by Calgon Carbon Corporation  (Feb. 1, 1987)

Untitled Document Summary: Guidelines are presented for the selection, handling and regeneration of activated carbon used in gold recovery operations. The guidelines are based ...

Global Initiatives to Increase the Sustainable Use of Precious Metals

by SGS  (Oct. 25, 2012)

The period from September through to January sees a number of important holidays for many countries and these holidays represent the peak season for gift giving. Many people’s thoughts often turn to luxury items such as jewelry as well as to electronic items such as mobile phones, MP3 players and the like. ...

E-scrap: metals too precious to ignore

by Recycling International  (Nov. 20, 2008)

Increased recovery of waste electrical and electronic equipment (WEEE) is providing the global recycling industry with fresh challenges. Researchers from Berlin’s University of Technology have been taking a close look at the material flowing into and out of the recycling process, paying special attention to the precious metals content. Their main ...

Recovery of Precious Metal Catalysts - A New Process Using Supercritical Water Oxidation

by Johnson Matthey Emission Control Technologies  (Jan. 1, 2002)

Up to now, the recovery of precious metals used as catalysts in chemical processes has involved the use of incineration. Now, however, a British-Swedish joint venture has developed a process which uses supercritical water oxidation instead, which provides many economic and environmental advantages. Precious metals are used extensively in ...

Efficient Treatment of Complex Wastewaters at Umicore Precious Metals using Biotechnology

by Paques B.V.  (Jan. 1, 2005)

Untitled Document Paques and Umicore have demonstrated the feasibility of biological treatment of the highly complex Hoboken wastewaters in ...

BlueOak - Precious metal recovery from electronics waste - Case Study

by Tetronics (International) Ltd  (Mar. 16, 2016)

The Challenge In the US, consumers alone dispose of some 3.2 million tonnes of e-waste annually; more than 80% of this ends up as waste, contributing >70% of all toxic metals in U.S. landfills. In a bid to tackle this wastage, BlueOak Resources. USA announced in July 2014 that they had selected Tetronics' technology for their national project ...

Thermal Plasma Technology Supports Precious Metal Recovery from WEEE

by Tetronics (International) Ltd  (Oct. 31, 2011)

The article provides an overview of the history of electrical wastes, where we are today and the potential value that can be generated from recovering the valuable precious metals it contains going forward.   The article also discusses how Tetronics’ patented DC Plasma technology has been successfully employed in a wide range of ...

WEEE – aren’t materials too precious to lose?

by UNTHA UK LTD  (Apr. 10, 2015)

Chris Oldfield, managing director of UNTHA UK, was interviewed by leading journal MRW magazine recently, on the subject of WEEE. Drawing upon his specialist industry insight he commented on the methodology used to process WEEE and the extent to which the sector needs to go ‘back to basics’ to ensure precious materials are not lost. ...

VSEP provides crystal clear permeate and recovers precious metals from the mining leachate at 97% recovery

by New Logic Research, Inc.  (May 31, 2007)

A unique membrane filtration system, known as V✧SEP (Vibratory Shear Enhanced Process), was developed by New Logic of Emeryville, California. The technology employs vibrational oscillation of an advanced polymeric membrane to improve the throughput and to prevent colloidal fouling of the membrane surface. This new technology provides a ...

Duncan recyling & refining - Precious metal recovery from spent catalysts case study

by Tetronics (International) Ltd  (Mar. 16, 2016)

The Challenge Spent catalysts contain Precious Metals, specifically the Platinum Group Metals (PGMs) that are valuable as a result of their low natural abundance, unique properties as well as the complex and costly processes that are required for their extraction/refining from primary sources. Duncan Refining and Recycling's (DR2) President, ...

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