chromite smelter process

Technology Innovations in the Smelting of Chromite Ore

The increasing costs of electric energy and thus the need to reduce the energy required to produce ferrochrome from chromite ore have spurred the innovations in the technologies used for smelting chromite ore. These technologies (Conventional smelting process, Outokumpu process, DC arc route, and Premus process) have been reviewed in this work. Premus process has been found to be the lowest

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A Brief History of Chromite Smelting

Chromite is chemically inert, and has a very high melting point (2040°C), making it very useful for use in refractories • World resources are greater than 12 billion tons of shipping-grade chromite, sufficient to meet conceivable demand for centuries Chromite Smelting –highly simplified FeO.Cr2O3 + 4C fi Fe + 2Cr + 4CO ~1700°C

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Technology Innovations in the Smelting of Chromite Ore by

2012/12/29 · 2.1 Conventional Smelting Process The traditional chromite smelting technology involves charging the chromite ore into a submerged AC Electric Arc Furnace (Figure 1) and reductants (coke, coal and

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Chromium - Wikipedia

For those products the ore smelter process differs considerably. For the production of ferrochromium, the chromite ore (FeCr 2 O 4) is reduced in large scale in electric arc furnace or in smaller smelters with either aluminium or .

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Chromite value chain - Outotec

Outotec's ferrochrome smelting technology combines preheating and electric furnace operation to optimize electric energy and coke usage. The built-in ability to clean and use process gases decreases operating costs and emissions. The superior availability of the process enables higher ferrochrome production capacity.

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US4295881A - Process for extraction of platinum group

A process for treating chromite-bearing ores to obtain useful mineral values, especially platinum group metal, therefrom wherein the ore is separated into magnetic and non-magnetic fractions; the non-magnetic fraction, containing a substantial portion of the platinum group metals, is concentrated and smelted to produce a metal layer containing platinum group metals; and the platinum group

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Process for extraction of platinum group metals from chromite

An important feature of the present invention is the discovery that the process described herein is much less sensitive to the presence of chromite in the heating furnance than is the case with known smelting techniques for the extraction of platinum group metals from ores.

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chromite smelting slag processing to get ferrochrome

Website: http://www.frjig.com/news/ferrochrome%20recovery%20solution.htmlAny further queries please feel free to contact me at:Email:[email protected]

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FERROCHROME PRODUCTION FACILITY - Noront Resources

chromite mines and produces ferrochrome for the stainless-steel market. The FPF will be part of Noront’s high-grade, first quartile cost, chrome business and will process Noront’s vast chromite resources in the Ring of Fire.

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Smelting Process of Chromite Ore Fines to Produce Crude Fe

2020/01/29 · The smelting behavior of waste chromite ore fines containing Cr and Ni to produce crude Fe–Cr–Ni–N alloy was investigated in this study.

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PDF An Improved DC-Arc Process for Chromite Smelting

At present, the leading process for ferrochrome is that offered by Outokumpu [2]. This process essentially involves firstly the agglomeration (pelletizing) of the smelting recipe, followed by sintering, cooling, and screening. This sinter is thereafter reheated to 600-700°C and hot charged to a closed submerged electric arc furnace.

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