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Processing methods of ferrochrome slag

  • Method of production of low-carbon ferrochrome in electric

    FIELD: metallurgy. SUBSTANCE: invention relates to metallurgy, namely to the production of ferroalloys - ferrochrome and ferrotitanium. The method involves mixing of powders of initial components of a charge containing an ore concentrate and aluminium as a reducing agent, initiation of the combustion process, mechanical separation of the obtained cast ferroalloy

  • (PDF) EXTRACTION OF MAGNESIUM FROM CHROME SLAG BY

    In the pyro m etallurgical processing o f ferrochrome, slag is obtained as a solid waste which ha s historically been dumped, piling u p in large quantities without a ny pollution pr evention

  • (PDF) Utilization of ferrochrome wastes such as

    The ferrochrome slag is having a porous and hard surface which can be crushed to make fine or coarse aggregates based upon the particle size of the slag. Usage of ferrochrome slag

  • CHARACTERIZATION OF FERROCHROME SLAG AS AN

    5.5 Heavyweight compaction curve of ferrochrome slag, red soil and red soil with different proportion (i.e.10%, 20%, 30%, 40%, 50%) of ferrochrome slag 41 5.6 Load v/s settlement curve of ferrochrome slag, red mud and fly ash after 4 days soaking in water 43 5.7 Load v/s settlement curve of ferrochrome slag, red soil and red soil

  • Synthetic Ferrochrome Slag Grit - Afrigrit

    Synthetic Ferrochrome Slag Grit MATERIAL SAFETY DATA SHEET All information in this MSDS is given in good faith and is accurate according to test results by accredited authorities. This MSDS is subject to revision when additional information comes to light. 1. PRODUCT AND COMPANY IDENTIFICATION

  • Basics of slag production - Article on the slag industry

    Oct 27, 2011· Slag from the production of ferrochrome is also included here; this material is produced in substantial tonnages and the main use of ferrochrome is in the steel industry. Slags also arise from other processes, particularly the smelting of non-ferrous metals, but these materials can be very different and each needs to be studied individually.

  • SOME ASPECTS OF THE PRODUCTION OF FERROCHROME

    Since the inception of this process, the DC arc furnace test facilities at Mintek have been employed to test varying composition, grade and mineralogy of chromite ores using different slag and metal chemistries, resulting in the production of ferrochrome alloys of

  • PRODUCTION, CHARACTERISTICS AND USE OF

    2.2 Ferrochrome slag products The ferrochrome slag products are granulated slag as well as classified slag products made by crushing and screening. The main part of slag is granulated. The cr ushed and screened slag products are produced from air cooled lumpy slag which is collected from various process phases, e.g. from ladles and launders.

  • SMELTING AND SLAG PROCESSING - US EPA

    III Slag Processing other factors, such as age, size of plant, geographic location, product, and waste control technologies do not justify segmentation of the industry into any further subcategories for the purpose of establishing that this method of application of the guidelines and performance standards be used.

  • Composition and properties of the main types of

    The results of an integrated study of high-alumina slag generated in the production of ferrotitanium, ferrochrome, and metallic chromium by the aluminothermic method at the Kluchi FerroalloyWorks are described. The chemical and mineral composition and refractoriness of the main varieties of slag are identified.

  • Understanding The Manufacturing Process Of Ferrochrome

    Medium, low and micro-carbon ferrochrome alloy are generally made of silicon-chromium alloy, chromite and lime. Desiliconization is refined with a 1500-6000 kV electric furnace. It is operated with a high alkalinity slag (CaO/SiO2 is 1.6 to 1.8). Low-carbon, micro-carbon ferro chrominum is also produced on a large scale by the heat exchange method.

  • Valorization of Ferrochrome Slag: Towards increasing the

    erroFchrome slag is a leftover of the production process of ferrochrome, a crucial alloying element for the production of stainless steel. The material properties of these slags show excellent properties for reuse in the construction industry. South Africa, the leading producer of ferrochrome does not take ad-

  • CHROMIC: NEW PROCESSES TO RECOVER METALS FROM

    The ferrochrome slag was crushed and sieved to a 4-9 mm fraction. The stainless steel slag is a finegrained fraction (< 500 µm) obtained after a crushing, screening and demetallisation treatment. For the characterization analyses (XRD, XRF) the material was further crushed (jaw crusher) and milled (ball mill) to < 125 µm. 1.2 Methods

  • Slags in ferroalloys productionreview of present knowledge

    Figure 4. Due to the difference in experimental methods, conditions, as well as the slag analysing methods, there seems to exist a great discrepancy in the oxidation state of chromium in the slag. Figure 5 shows a comparison of the activities of CrO. A general consistency of the activity values can be observed from the figure.

  • Understanding The Manufacturing Process Of Ferrochrome

    Low-carbon, micro-carbon ferro chrominum is also produced on a large scale by the heat exchange method. Two electric furnaces are used in production. A furnace smelts silicon-chromium alloy, and a furnace melts slag composed of chrome ore and lime. The refining reaction takes place in two phases:

  • Chrome Ores on Ferrochrome Smelting

    The Ferrochrome Simulation is developed using the principles of mass balance and heat balance, the interface can be seen in Fig. 2. The simulation requires three inputs and generates the results of charge recipe, mass and composition for slag, metal, and off gas, with the energy consumption associated with the production process.

  • Implementation of industrial waste ferrochrome slag in

    Jun 01, 2014· At one time 250 g of ferrochrome slag material was taken in the jar and ground in a high energy ball mill for 30 min at 400 rpm. Similarly, it was processed to complete the grinding of complete material. The ground material was then kept in various selected sieves and set up on the motorized vibro-sieving equipment for grading.

  • Economic modelling of a ferrochrome - SAIMM

    of ferrochrome slag and off gas emissions need to be accounted for. Ferrochrome slag The molten products obtained from the ferrochrome smelter operation are alloy and slag. According to Beukes et al.8, South African producers generate slag- to- metal ratios of between 1.11.9 t slag per t FeCr. These ratios are worrying,

  • Basics of slag production - Article on the slag industry

    Oct 27, 2011· In tonnage terms, blast furnace slag is at present the main type followed by slags from the Basic Oxygen Steelmaking (BOS) and Electric Arc Furnace (EAF) processes. Various other processes such as external desulphurisation of steel may generate significant amounts of slag at some plants but overall they are only a small proportion of the total.

  • SOME ASPECTS OF THE PRODUCTION OF FERROCHROME

    Since the inception of this process, the DC arc furnace test facilities at Mintek have been employed to test varying composition, grade and mineralogy of chromite ores using different slag and metal chemistries, resulting in the production of ferrochrome

  • (PDF) Utilization of ferrochrome wastes such as

    The ferrochrome slag is having a porous and hard surface which can be crushed to make fine or coarse aggregates based upon the particle size of the slag. Usage of ferrochrome slag

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