437 Nickel Smelting and Refining Wet scrubbimg should be avoided and cooling waters should be recirculated. Storm waters should be collected and used in the process. Process water used to transport granulated slag should be recycled. To the extent possible, all process effluents should be returned to the process. Treatment Technologies
Outotec Nickel Flash Smelting Process is a benchmark nickelsmelting method and a clear global leader in the worlds primary nickel production from sulfide materials. Efficiency and improved environmental and inplant hygiene have been the guiding principles in developing the process.
ISASMELT technology has been applied to lead, copper, and nickel smelting, and by 2013 fifteen plants were in operation in ten countries, with another five in various stages of development. The installed capacity of the operating plants in 2013 was over 8 million tonnes per year t/y of feed materials, with additional capacity to come on line in 2013 and 2014.
Nickel smelting is the process that nickel ore goes through to eventually remove impurities and leave just the nickel metal. While the ores can come from different stones and sources, they have two categories: lateritic, or rocks found in tropical climates and which contain nickel and sulfidic ore, which is mined from underground.
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