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- W1971316725 abstract "Ferro-nickel smelters in Japan rely 100% on imported laterite ore and are handicapped by having to transport such low-nickel, high-moisture ore from New Caledonia, Indonesia and the Philippines. On top of this they must compete pricewise with imports whose prices may owe more to politics than to economics. Meanwhile, the ore-producing countries lack cheap energy and man power, and are unable to build their own smelting plants. In Japan, all the smelting plants have been making efforts to reduce their costs by converting from oil to coal, and also by utilizing the heat of the gas exhaust from the rotary kiln and electric furnace as well as the heat of the slag, while continually striving for improvements in technology. Studies on concentrating nickel in laterite with a low nickel content have been made not only in Japan but in many other countries. One of them known as the laterite segregation process, has now reached a successful conclusion; it has been confirmed that with this process 50–60% nickel concentrate can be achieved on a steady basis. As the process takes place at below 950°C, compared to 1,600°C for the smelting alternative, a 25–30% energy saving is anticipated for a full-scale plant. The process also allows great flexibility in determining the chemical characteristics of the ore, particularly the basicity. A feasibility study on this process is now underway." @default.
- W1971316725 created "2016-06-24" @default.
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- W1971316725 date "1987-05-01" @default.
- W1971316725 modified "2023-09-23" @default.
- W1971316725 title "Development of ferro-nickel smelting from laterite in Japan" @default.
- W1971316725 doi "https://doi.org/10.1016/0301-7516(87)90029-9" @default.
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