Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 9
Book Description
United States Patent : US6261527 : Atmospheric Leach Process for the Recovery of Nickel and Cobalt from Limonite and Saprolite Ores
Author: Official Gazette of the United States Patent and Trademark Office
Author: United States. Patent and Trademark OfficePublisher:
ISBN:
Category : Patents
Languages : en
Pages : 1390
Book Description
United States Patent : US5393320 : Leaching Process for Nickel Cobalt and Manganese Ores
Author: United States Patent : US3146091 : Method and Process for the Extraction of Nickel and Cobalt from Ores
Author: WIPO Patent : WO9620291 : Recovery of Nickel and Cobalt from Laterite Ores
Author: United States Patent : US3244513 : Process for the Treatment of Lateritic Ores to Obtain Cobalt and Nickel Values
Author: United States Patent : US5993635 : Atmospheric Mineral Leaching Process
Author: WIPO Patent : WO0222896 : Solvent Extraction Process for Recovering Nickel and Cobalt from Leach Solutions
Author: Leaching and Recovery of Nickel and Cobalt from the Waterval Boven Laterite Ore
Author: Catherine Kentse ThubakgalePublisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 254
Book Description
The depletion and expensive processing of nickel-rich sulphide deposits have posed a threat to the steel-making industry, where nickel is used as an alloy element. Processing of nickel sulphide ores by pyrometallurgy has also proven to be a challenge due to associated high energy requirements, strict environmental regulations on carbon emissions, expensive construction material and maintenance. Mining companies along with researchers are now challenged to develop new mining and metallurgical technologies which will be energy-efficient, cost-effective and environmentally friendly for processing lean nickel sulphide and low-grade laterite ores. Previously stockpiled low-grade nickel laterite ores are currently the potential alternative source of nickel for the steel-making industry. Hydrometallurgy has emerged as the most suitable processing method with low energy requirements and inexpensive construction materials. This study is aimed at finding an economic and environmentally friendly process suitable for atmospheric pressure leaching of nickel and cobalt from the Waterval Boven, Mpumalanga, low-grade nickel laterite ore using sulphuric acid (H2SO4)
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