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hydrometallurgy
(redirected from hydrometallurgical)

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hydrometallurgy

Extraction of metal from ore by dissolving the metal (as one of its salts) and then recovering it from the solution. The operations usually involved are leaching (dissolving in water), commonly with additional agents; separating the waste and purifying the leach solution; and precipitating the metal or one of its pure compounds from the leach solution by chemical or electrolytic means. Though hydrometallurgy originated in the 16th century, its principal development took place in the 20th century. The development of ion exchange, solvent extraction, and other processes now permits more than 70 metallic elements to be produced by hydrometallurgy, including most gold, much silver, and large tonnages of copper and zinc.
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The proprietary hydrometallurgical extraction and recovery technology developed by Haber for e-scrap and gold ores requires that the established operating parameters for each type of material be confirmed under production conditions, according to the company.
Haber signs lease, begins pilot operations by Recycling Today
The non-binding statement of principles with the province provides for the development of a $470-million (US) mine and mill/concentrator processing plant at Voisey's Bay, and a $120-million (US) research and development program in hydrometallurgical processing.
Cautious optimism: Voisey's Bay deal raises sustainability questions by Louiseize, Kelly / Northern Ontario Business
The Company also owns a proprietary and environmentally friendly hydrometallurgical process called Activox.
LionOre Mining International Ltd. Fourth Quarter 2006 Earnings ... by Business Wire
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