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Method of production of low

The invention relates to ferrous metallurgy and can be used in Ferroalloy industry specifically in the production of low carbon ferrochrome Various methods for the production of low-carbon (refined) of ferrochrome in electric furnaces or spacegreat allowing to obtain a low content of carbon in it but they are inefficient and typically require the use of high quality materials Get price

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Chrome Ores on Ferrochrome Smelting

of more ores and less quartzite the smelting process produces more slag and requires more electric energy to heat and melt the slag Keywords—Ferrochrome production ferroalloy process optimization chrome ore I INTRODUCTION IGH carbon ferrochrome (HCFeCr) is produced by carbothermic reduction of chrome ore Electric power isGet price

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Recovery of Chromium from Ferrochrome Slag

Recovery of chromium from ferrochrome slag is 64% by treatment of slag with lime at 973K in solid phase The soluble chromium ion was extracted with water The chromium from liquid extract is separated with fly ash based zeolite which has 3000 mmol/gram and it can be regenerated to recover chromium REFERENCES 1 Get price

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Slags in ferroalloys production—review of present knowledge

tively In FeMn production conditions the slag consists mainly of Mn2+ This is a clear difference from CrOx containing slags in which both two and three valent coexist in slags in FeCr process conditions Oxidation state of the slag depends on the ambient oxygen partial pressure and temperature in the examined process Get price

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PETROGRAPHIC ANALYSIS OF LOW

According to our estimation the slag would have high concentration of helenite (2CaOAl2O3SiO2) The results of the research work described in the paper are of certain interest for new methods of ferrochrome production with complex processing of secondary raw materials such as ferrochrome Get price

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By

Sep 30 2016Outokumpu's expertise in utilization of by-products is outstanding For instance the side streams from the ferrochrome production have been utilized since the Tornio plant first started operating in 1968 Over the years the use of the slag products have saved over 20 000 000 m3 natural gravel in northern Finland Get price

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Modelling of the Refining Processes in the Production of

know what kind of influence different factors such as process variables and conditions have on the process outcome In order to production ally economically and ecologically optimize the refining processes used in the production of stainless steels one has to know these connections between the process ou tcomes and the process variables Get price

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exotherm method of producing ferrochrome

Apr 21 2011 In the process slag is mixed with a molten ferrochrome metal phase chrome recovery in the production of ferrochrome from smelting of chromium ore to be The silicothermic reduction of the Cr203 in the slag is an exothermic reaction 2004 Gotzinger Karl Reiner Method for producing stainless steels Get price

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Ferrochrome Slag Beneficiation Plants In India

Harsco has 15 years experience in building and operating slag processing plants for recovery of ferrochrome slag slag beneficiation plants in india Get Price And Support Online ball mill use in ferrochrome processing plant HomeMiningSlag processing plantprocessing methods of ferrochrome slag Get price

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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 varying composition and grade TheGet price

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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 Get price

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A method of processing metallurgical slag dump

A method of refining metallurgical slag dump which includes primary crushing of slag to the size of the piece not exceeding 150 mm sieving fractions and separation with separation of metal from slag in which the pre-exercise sample from dump of metallurgical slag large metal scrap with subsequent librarystation remaining slag in barren rock Get price

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Minerals

The CHROMIC project (effiCient mineral processing and Hydrometallurgical RecOvery of by-product Metals from low-grade metal contaIning seCondary raw materials) aims to recover chromium from steelmaking and ferrochrome slags to regain valuable resources and simultaneously reduce potential environmental impacts To develop the recovery flowsheets and reliably calculate metal recovery an Get price

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CHARACTERIZATION OF FERROCHROME SMELTER SLAG

practices for the characterization offerrochrome smelter slag The characterization ofthe slag is also essential for process control and thus its implications to the performance of the smelting process are also discussed inthis thesis Slag samples from a ferrochrome smelter were analyzed using an Get price

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Methods Of Dewatering In Mineral Processing

Mineral Processing Process Technologies Plant Optimisation ECO DEWATERING FERROCHROME FROM SLAG PROCESS TECHNOLOGIES COAL FROM SLIMES CHROMITE FOUNDRY SAND PRODUCTION ECO DEWATERING FERROCHROME FROM SLAG PROCESS TECHNOLOGIES COAL FROM SLIMES CHROMITE FOUNDRY SAND Expertly applied methods and techniques Get price

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exotherm method of producing ferrochrome

Apr 21 2011 In the process slag is mixed with a molten ferrochrome metal phase chrome recovery in the production of ferrochrome from smelting of chromium ore to be The silicothermic reduction of the Cr203 in the slag is an exothermic reaction 2004 Gotzinger Karl Reiner Method for producing stainless steels Get price

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Jigging recovery of chromium slag process of ferrochrome

Jigging recovery of chromium slag process of ferrochrome jigging process Chromite is divided into high carbon ferrochrome including charging FeCr with different carbon content (C≦10%) medium carbon ferrochrome (C≦4 0%) low carbon ferrochrome (C≦0 5%) micro carbon ferrochromium (C≦0 15%) etc Commonly used silicon chromium alloys ferrochrome nitride etc Get price

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Ferrochrome Manufacturing Process

The ferrochrome slag production is 1 2 t / t FeCr It is mainly granulated and the rest is air-cooled There is an in-house special handling and metal recovery process for the air-cooled slag where it is made into finished products In addition to recov-ered ferrochrome classified slag pr Get price

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US3523021A

US3523021A US3523021DA US3523021A US 3523021 A US3523021 A US 3523021A US 3523021D A US3523021D A US 3523021DA US 3523021 A US3523021 A US 3523021A Authority US United States Prior art keywords ferrochrome percent carbon oxygen method Prior art date 1967-05-23 Legal status (The legal status is an assumption and is not a legal conclusion Get price

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12 4 Ferroalloy Production

12 4 2 Process Description A typical ferroalloy plant is illustrated in Figure 12 4-1 A variety of furnace types including submerged electric arc furnaces exothermic (metallothermic) reaction furnaces and electrolytic cells can be used to produce ferroalloys Furnace descriptions and their ferroalloy products are given in Table 12 4-1 Get price

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Economic modelling of a ferrochrome

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 1–1 9 t slag per t FeCr These ratios are worrying Get price

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Desulphurization of Hot Metal – IspatGuru

Oct 16 2013Sulphur rich slag generated during the process is removed immediately after completion of the reagent reaction The most common method is to tilt the ladle and rake the slag off with the help of a slag raking machine Hot metal sulphur content is reduced in charging ladle or transfer ladle worldwide by this method Get price

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ferrochrome slag processing

Nov 28 2018 Increase in ferrochrome slag processing plants to drive growth in the ferrochrome market The slag processing plants help in the easy recovery of ferrochrome metal the ferrochrome slag can be used as aggregate in construction industry The growing environmental concerns about the proper ferrochrome waste slag is expected to Get price

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Nickel Ore Processing Manual Milling And Classification

processing methods of ferrochrome slag - Grinding Mill China nickel ore processing manual milling and classification nickel ore processing manual milling and classification tungsten carbide grinding balls Get Price nickel manufacturing process flow sheet | Solution for ore miningGet price

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EXTRACTION OF MAGNESIUM FROM CHROME SLAG BY

ferrochrome produced [22] which results to a total of 12 to 16 million tonnes per year of slag produced globally [23] In Zimbabwe ferrochrome is processed at Zimasco Kwekwe pyro metallurgic ally whereby up to date there are mountainous piles of chrome slag in the vicinity or within the mine complex Get price

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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 m) 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 m 1 2 MethodsGet price

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Utilization of ferrochrome wastes such as ferrochrome ash

The recovery of ferrochrome from slag at Zimasco Comminution The comminution circuit is designed to produce a crushed slag with a narrow size distribution and to minimize the production of fines To maximize liberation the secondary and tertiary crushers are cones which give a Get price

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Ferrochrome

Feb 05 2012An alternative to this process is to remelt high-carbon ferrochromium with silica and coke This is a two-stage process and economically less attractive than the direct smelting process The low carbon content in ferrochrome–silicon is a consequence of a decreased solubility of carbon due to the increase in silicon content Get price

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Separation of Metals from a Slag Using a Multi

This paper presents basic principles of the process and its applications for recovery of metals from slag especially ferroalloys A commercial jig plant has been installed in South Africa to recover metal concentrate of 97% grade at 76% metal recovery from minus 1mm ferrochrome slag far exceeding conventional gravity methods IntroductionGet price

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Chromium Slag Waste Treatment Production Line Crusher

Processing methods of ferrochrome slag processing methods of ferrochrome slag - The slag processing production line mainly consists of jaw crusher VSI crusher vibrating screen washing machine and belt conveyor The VSI slag crusher in our company absorbs the technical advantages of domestic and foreign similar products and is also a new Get price

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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 m) 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 m 1 2 MethodsGet price

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processing methods of ferrochrome slag

feldspar with mica processing method choice machine mango processing equipment supplier in the philippines processing of crushed sand for construction industry list of sugar mill processing equipments with definitions coal processing plant india mining and processing industry continuous process operations pyrite mining and processing of goldGet price

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Samancor

To improve total ferrochrome recovery while maintaining a high-quality product alloy recovery plants are utilised to recover the ferrochrome from the slag produced during the charge chrome process The slag which has a metallic content of approximately 4 percent is processed through a series of crushers and broken down to minus 15mm material Get price

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Ferro Alloys

Ferro alloy slag is a valuable source for metals With expertise and tailored technologies we aim to fully exploit its potential CRONIMET Mining Processing seeks to prevent the wastage of any valuable metals due to inefficient processing methods and the failure to beneficiate waste material Get price

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Methods for the Analysis of Mineral Chromites and

Methods for the Analysis of Mineral Chromites and Ferrochrome Slag Previous this report is to present the techniques used at the Albany Research Center for the analysis of chromite minerals and ferrochrome-related samples The methods given in this report are based on standard techniques The familiarization process results in a delay Get price

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