Extracting gold, silver, palladium and platinum from circuit boards in an environmentally friendly and sustainable way
Carol A. Jegou
All Green Precious Metal Recovery/All Green Recycling Inc
AGR has developed, patented, operates and owns 100% of the intellectual property (IP), patented technology and trade secrets for what it believes is the most environmentally sustainable method of extracting the valuable commodities (gold, silver, copper, platinum, and palladium) from circuit boards without using harsh chemicals, as such producing ‘Conflict-Free’ gold. [The Conflict Free Gold Standard provides a common approach by which gold producers can assess and provide assurance that their gold has been extracted in a manner that does not cause, support or benefit unlawful armed conflict or contribute to serious human rights abuses or breaches of international humanitarian law.] The AGR patented process advantages include its hydrometallurgical closed-loop system eliminating air emissions without any discharge. The AGR process is an environmentally safe alternative to smelting without shredding. Its system concentrates precious bearing material from circuit boards to obtain gold, silver, palladium, platinum and copper. AGR utilizes a water-soluble solution which can be rejuvenated and recycled. This proprietary solution can and is being re-used unlimited number of times. The AGR closed-loop precious metal recovery process is highly scalable. Multiple operations could be installed within recycling or refining plants throughout the world, and require very little additional space. The AGR process has lower capital requirements than the current industry standard. Compared with smelting and other cost-intensive pyro-metallurgical recovery methods, AGR’s method can be efficiently operated in smaller facilities, as the equipment takes up considerably less space and requires substantially less labor compared to the traditional methods of chemical or pyrometallurgical processes. Currently, AGR has successfully expanded the technology and operations to produce 99.9% pure gold, silver, copper, palladium and platinum.