Home |  News |  Conferences |  Commodities |  Publications |  Business Directory |  Resources |  Help
Go to the MEI Online homepage

Search Site:

MEI Online: Environmental Issues: Latest News: April 2nd 2019


Click for more info on Sustainable Minerals '20


:: EnviroLeach Achieves over 90% Palladium Recovery from Catalytic Converters


EnviroLeach Technologies Inc. is pleased to report that advances in its formula have resulted in the selective dissolution of Palladium (Pd) from multi-metal sources into aqueous solution.

Recent test work on samples, using modified conditions of Enviroleach’s proprietary chemistry, was carried out to evaluate the extraction of palladium from ceramic based catalytic converters. Initial testing showed approximately 90% recovery of the contained palladium was achieved in less than 2 hours.

Initial electrowinning tests on the recovery of Palladium from solution was also positive. One sample, with an initial SOL grade of 159 PPM Pd, attained an 83% recovery of metal from solution within 40 minutes of the electrowinning process.

Further internal testing is planned to optimize the chemistry and leach conditions. Validation work will be contracted to an external lab after the internal development and optimization has been completed. Additional studies are also being performed on the effectiveness of our modified solution on the other Platinum Group Metals including Platinum (Pt). The Company is currently investigating the potential of pilot scale testing in Q3/Q4 of this year.

Duane Nelson, President and CEO of EnviroLeach, states; “I am very pleased that our environmentally friendly chemistry and process can be modified to extract palladium. This is another important breakthrough by our brilliant team of scientists and provides EnviroLeach with strategic access to another multibillion-dollar market sector”.

A catalytic converter is an automotive device used to convert toxic vehicle emissions to less harmful substances by way of catalyzed, or accelerated, chemical reactions. Most present-day vehicles that run on gasoline, including automobiles, trucks, buses, trains, motorcycles, and planes, have exhaust systems employing a catalytic converter.

The current price of Palladium has now surpassed gold and is trading at $1,563 per ounce. Recent Automotive Catalytic Converter Market report by Allied Market Research, projects that the global automotive catalytic converter market size is expected to reach $183.4 billion by 2022, registering a CAGR of 7.7% from 2016 to 2022.

According to the “2017 PGM Market Report” from Johnson Matthey, throughout the last six years, the global shortage of platinum averaged 346,600 ounces annually, while the shortage of palladium was 806,300 ounces annually. These shortages highlight the need for auto catalyst recycling. It is estimated that up to 30 percent of PGMs will come from the recycling industry by 2021.




MEI Blog

Select the list(s) you'd like to join below, enter your email address, choose a content format and click "Join."
[more info]

MEI Online Update
MEI Online Job Vacancies


© 1998-2017, Minerals Engineering International

Email: amanda@min-eng.com