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Direct reduction of garnierite ore for production of ferro-nickel with a rotary kiln at Nippon Yakin Kogyo Co., Ltd., Oheyama Works - ScienceDirect International Journal of Mineral Processing Volume 19, Issues 1–4, May 1987, Pages 173-187
Direct reduction of garnierite ore for production of ferro-nickel with a rotary kiln at Nippon Yakin Kogyo Co., Ltd., Oheyama Works
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Jun 08, 2013 Direct reduction of garnierite ore for production of ferro-nickel with a …. Direct reduction of garnierits ore for production of ferro-nickel with a rotary kiln at Nippon Yakin Kogyo Co., Ltd., Oheyama Works. Int. J. Miner. Process., 19: … More detailed
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Direct reduction of garnierite ore for production of ferro-nickel with a rotary kiln at Nippon Yakin Kogyo Co., Ltd., Oheyama Works the Nippon Yakin Kogyo Company constructed a plant at Miyazu for smelting low nickel laterite ores from the nearby Oheyama Mine
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Direct reduction of garnierite ore for production of ferro-nickel with a rotary kiln at Nippon Yakin Kogyo Co., Ltd., Oheyama Works Tetsuya Watanabe, Sadao Ono, Haruo Arai, Toyomi Matsumori Pages 173
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May 01, 2012 Direct reduction of garnierite ore for production of ferro-nickel with a rotary kiln at Nippon Yakin Kogyo Co., Ltd., Oheyama Works International Journal of Mineral Processing , 19 ( 1–4 ) ( 1987 ) , pp. 173 - 187
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Jan 20, 2017 Direct reduction of garnierite ore for production of ferro-nickel with a rotary kiln at Nippon Yakin Kogyo Co., Ltd., Oheyama Works ... we switched the raw material to imported garnierite ore
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to 1300 C, the phase of saprolitic nickel ore changes into a complex mineral. The mineral is dominated by olivine (Mg 0.5Fe 0.5) 2SiO 4. 29) 2.3 Direct reduction of laterite nickel ore in industrial scale Most laterite nickel ore processing is carried out using Elkem process. The Elkem process uses Rotary Kiln
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The invention relates to the field of non-ferrous metallurgy and specifically to a method for processing laterite (oxidized nickel) ores with the direct production of ferronickel in the form of metal granules. The method comprises mixing the ore with a solid reducing agent and with fluxing additives, briquetting the resultant mixture, a reduction firing of the briquetted charge in tubular
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Apr 12, 2021 The method of producing ferronickel at low temperature (1250–1400 C) has been applied since the 1950s at Nippon Yakin Kogyo, Oheyama Works, Japan. Limestone was used as an additive to adjust the slag composition for lowering the slag melting point. The ferronickel product was recovered by means of a magnetic separator from semi-molten slag and metal after water quenching. To increase
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Indonesia, while Ni phytomining ... reductive roast in a rotary kiln where Ni is isolated by. ... of garnierite ore for production of ferro-nickel with rotary kiln at. Nippon Yakin Kogyo Co. Ltd
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The increasing demand for stainless steel and the scarcity of sulfide nickel ore affect the increase of laterite nickel ore processing. One of the processes that has been proven can be applied to process laterite nickel ore is direct reduction. In the direct reduction, the reduction atmosphere was adjusted by controlling the volume of CO and CO2 from carbon source materials, such as coal
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gas, etc.) as a reductant in a rotary kiln. Nickel and cobalt are firstly reduced because iron has greater affinity to oxygen. The product is charged to converter for refining after discarding the slag phase containing unreduced iron oxide, magnesium oxide and silica. The end-product is ferronickel alloy which contains 25% of nickel
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The sticking phenomenon between molten slag and refractory is one of the crucial problems when preparing ferronickel from laterite ore using rotary hearth furnace or rotary kiln processes. This study aims to ameliorate sticking problems by using silicon dioxide (SiO sub 2 /sub ) to adjust the melting degree of the briquette during reduction roasting. Thermodynamic analysis indicates that the
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The sampling of raw materials in the rotary kiln, firing experiment by the experimental kiln, and water quenching experiment have been performed, and the clarification of behavior of the reduction and the growth of metal has been attempted by SEM-EDS. In the amorphous serpentine region, NiO has very high reducibility than FeO. The increase in heating temperature above 1 273 K allows the fine
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The invention provides a method for producing ferronickel by processing laterite nickel ore in Sulawesi, Indonesia through an RKEF technology. The method comprises the following steps: 1, prescreening a laterite ore raw material by a 50mm grizzly screen, crushing a part not passing through the screen by a jaw crusher to below 50mm, and mixing the obtained crushed material with a product
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The invention provides a method for producing ferronickel by adopting a rotary kiln direct reduction-RKEF (Rotary Kiln-Electric Furnace) combination method. The method comprises the following steps: drying a laterite nickel ore for later use; crushing and screening an appropriate amount of the dried laterite nickel ore, and then mixing the screened laterite nickel ore with a carbonaceous
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