Leave Message
For More Information

total iron in mineral chromite and ferrochrome slags -:

Total Iron in Mineral Chromite and Ferrochrome Slags

2017-10-18 · A typical chromite or chromite concentrate can range from less than 10 pct iron to over 20 pct iron. To cope with this variability and with the difficulty in attacking chromite samples, the method of choice at this Center is titration after alkaline fusion. This method is also used on ferrochrome slags, even though they may occasionally contain ...

Read More
Total Chromium in Mineral Chromite and Ferrochrome Slags

2017-10-18 · The total chromium content in mineral chromite and ferrochrome slags can range from a fraction of a percent in the slags to greater than 30 pct in the ore concentrates. Because of this variation and because of the difficulty in dissolving chromite-containing samples, the method of choice at this Center has been fusion with sodium peroxide ...

Read More
PRODUCTION, CHARACTERISTICS AND USE OF

2015-5-22 · World high carbon ferrochrome production, charge chrome and HCFeCr, was 6.0 million tonnes in 2005. The production increased by 2.8 per cent from the year 2004. Almost all ferrochrome is produced in submerged electric arc furnaces. The raw material in the production of ferrochrome is chromite, which is chrome and iron oxides containing mineral.

Read More
Methods for the Analysis of Mineral Chromites and ...

2017-10-18 · Manganese in Mineral Chromite, Ferrochrome Slags, and Ferrochrome Acid Digestion of Ferrochrome Metal Analysts assigned to make a new determination on a

Read More
Smelting - Melting - Refining Archives — Page 6 of 16

2021-10-26 · The total chromium content in mineral chromite and ferrochrome slags can range from a fraction of a percent in the slags to greater than 30 pct in the ore concentrates. Because of this variation and because of the difficulty in dissolving chromite-containing samples, the method of choice at this Center has been fusion with sodium Read more

Read More
Dissolution and reduction of chromite ore in

2018-12-26 · chromite ore was fed into the molten slag, and was followed by reduction of iron and chromium oxides. Due to the fact that the chromite ore was fed in granular form, as expected, a greater contact area was created which influenced the dissolution / reduction reaction between the ore and the slag. The slag composition played a significant role ...

Read More
Implementation of industrial waste ferrochrome slag in ...

2014-6-1 · The main raw material in the production of ferrochrome is chromite, which is basically chrome and iron oxides containing mineral. Chromite is used as lumpy ores, which must be generally agglomerated to make them usable to charge for the furnace. Fines in the smelting furnace cause unbalanced operation and thus decrease productivity.

Read More
SOME ASPECTS OF THE PRODUCTION OF

2012-2-7 · Council for Mineral Technology, 200 Malibongwe Drive, Randburg, South Africa; [email protected]: [email protected] ABSTRACT Ferrochrome alloy is predominantly produced in AC submerged-arc furnaces where the electrodes are buried in the burden of lumpy materials comprised of chromite ores or pellets, reductants and fluxes.

Read More
Effect of Chrome Ore Quality on Ferrochrome Production ...

2010-1-5 · The main mineral for this chrome ore is picrochromite with a high MgO/Al2O3 ratio that its significant for reducibility as explained in literature [1, 2, and 3]. Serpentine as the main binder is not like olivine very dense and hard, but has got enough porosity to allow a good contact between reducing gas and chromite grains.

Read More
Ferrochrome Aluminothermal Slags as a Multifunctional ...

2018-3-6 · The most complete petrographic study of carbon-free ferrochrome monolithic slags smelted by extra0furnace and electric furnace methods was performed in the 1970s in the VNIIM institute (Chelyabinsk) in [].The chemical composition of bulk slag samples was determined, the mineral composition was studied in detail, and microstructure and the sequence of mineral phase and

Read More
Methods for the Analysis of Mineral Chromites and ...

2017-10-18 · Manganese in Mineral Chromite, Ferrochrome Slags, and Ferrochrome Acid Digestion of Ferrochrome Metal Analysts assigned to make a new determination on a sample often must deduce the significance of steps in the usually sketchy procedure

Read More
Dissolution and reduction of chromite ore in

2018-12-26 · chromite ore was fed into the molten slag, and was followed by reduction of iron and chromium oxides. Due to the fact that the chromite ore was fed in granular form, as expected, a greater contact area was created which influenced the dissolution / reduction reaction between the ore and the slag. The slag composition played a significant role ...

Read More
Implementation of industrial waste ferrochrome slag in ...

2014-6-1 · The main raw material in the production of ferrochrome is chromite, which is basically chrome and iron oxides containing mineral. Chromite is used as lumpy ores, which must be generally agglomerated to make them usable to charge for the furnace. Fines in the smelting furnace cause unbalanced operation and thus decrease productivity.

Read More
SOME ASPECTS OF THE PRODUCTION OF

2012-2-7 · Council for Mineral Technology, 200 Malibongwe Drive, Randburg, South Africa; [email protected]: [email protected] ABSTRACT Ferrochrome alloy is predominantly produced in AC submerged-arc furnaces where the electrodes are buried in the burden of lumpy materials comprised of chromite ores or pellets, reductants and fluxes.

Read More
Basics of slag production - Article on the slag industry ...

2011-10-27 · Ferrochrome Slags . Chromite is the only ore of chromium in commercial use, and as deposits of this mineral are sparsely scattered across the globe there are far fewer production sites for ferrochrome than for iron and steel. Production is usually in an electric arc furnace, and the slag arises from the other components present within the chromite.

Read More
Download [PDF] Chromium Recovery From Nickel Cobalt ...

INTRODUCTION TOTAL CHROMIUM IN MINERAL CHROMITE AND FERROCHROME SLAGS Procedure Procedure Notes ACID - SOLUBLE OR " METALLIC " ... entitled " Chromium Recovery From Nickel - Cobalt Laterite and Laterite Leach Residues" ( 3 ) . Author: Publisher: ISBN: UIUC:30112085690284. Category: Mines and mineral resources. Page: View: 286. Read Now »

Read More
Slags in ferroalloys production—review of present

2009-8-26 · slags of FeCr and FeMn processes. Submerged-arc furnaces are used to smelt chromite and manganese ores into, respec-tively, ferrochrome and ferromanganese (containing silicon and carbon) as well as associated slags by the use of a suitable carbonaceous reductant (coke, anthracite, char). The slag is created in the process from

Read More
Ferrochrome Aluminothermal Slags as a Multifunctional ...

2018-3-6 · The most complete petrographic study of carbon-free ferrochrome monolithic slags smelted by extra0furnace and electric furnace methods was performed in the 1970s in the VNIIM institute (Chelyabinsk) in [].The chemical composition of bulk slag samples was determined, the mineral composition was studied in detail, and microstructure and the sequence of mineral phase and

Read More
A computational study on the mixing and reduction of

1. Introduction. Large amounts of slags are formed in the production of ferrochrome and stainless steel. It is estimated that, depending on the used raw materials, approximately 1.1–1.6 tons of slags are formed in the submerged arc furnaces (SAF) for each produced ton of ferrochrome [].More slags are formed when stainless steel is produced from ferrochrome and other raw materials (i.e ...

Read More
Mining & Minerals - Muscat Overseas Group

Oman is a major exporter of Chromite Ore, accounting for 10% of the total world production of this mineral. Abundant mid-grade Chromite Ore deposits, coupled with availability of cheap energy and proximity to Sohar port makes this venture ideally positioned to showcase the capability of Oman as a leading supplier of Ferrochrome.

Read More
v118n6a15 Fluxing of South African chromite ore with ...

2019-5-9 · broad outline of process operations for ferrochrome production in South Africa is given in Figure 1. Note, that it is no longer common for most producers to use lumpy ore as primary feed material. ! ! ! ! ! Chromite ore contains a mixture of complex spinel minerals and pyroxenes. Most of the chrome and iron in chromite is present as (Fe,Mg)(Cr ...

Read More
Basics of slag production - Article on the slag industry ...

2011-10-27 · Ferrochrome Slags . Chromite is the only ore of chromium in commercial use, and as deposits of this mineral are sparsely scattered across the globe there are far fewer production sites for ferrochrome than for iron and steel. Production is usually in an electric arc furnace, and the slag arises from the other components present within the chromite.

Read More
Effect of Chrome Ore Quality on Ferrochrome Production ...

2010-1-5 · The main mineral for this chrome ore is picrochromite with a high MgO/Al2O3 ratio that its significant for reducibility as explained in literature [1, 2, and 3]. Serpentine as the main binder is not like olivine very dense and hard, but has got enough porosity to allow a good contact between reducing gas and chromite grains.

Read More
Potential Toxic Effects of Chromium, Chromite Mining

2019-10-11 · Chromium-III is found in the mineral chromite. The main use for chromite ore mined today is the production of an iron-chromium alloy called ferrochrome (FeCr), which is used to make stainless steel. Extensive chromite deposits have been identified in northern Ontario 500 km north-east of Thunder Bay in the area dubbed the Ring of Fire.

Read More
A computational study on the mixing and reduction of

1. Introduction. Large amounts of slags are formed in the production of ferrochrome and stainless steel. It is estimated that, depending on the used raw materials, approximately 1.1–1.6 tons of slags are formed in the submerged arc furnaces (SAF) for each produced ton of ferrochrome [].More slags are formed when stainless steel is produced from ferrochrome and other raw materials (i.e ...

Read More
Slags in ferroalloys production—review of present

2009-8-26 · slags of FeCr and FeMn processes. Submerged-arc furnaces are used to smelt chromite and manganese ores into, respec-tively, ferrochrome and ferromanganese (containing silicon and carbon) as well as associated slags by the use of a suitable carbonaceous reductant (coke, anthracite, char). The slag is created in the process from

Read More
Ferrochrome Aluminothermal Slags as a Multifunctional ...

2018-3-6 · The most complete petrographic study of carbon-free ferrochrome monolithic slags smelted by extra0furnace and electric furnace methods was performed in the 1970s in the VNIIM institute (Chelyabinsk) in [].The chemical composition of bulk slag samples was determined, the mineral composition was studied in detail, and microstructure and the sequence of mineral phase and

Read More
Recovery of metal from slag/mixed metal generated in ...

EAF slags have higher potential in metal recovery than the other two slags due to its higher iron and chromium contents. The size of the iron-chromium-nickel alloy particles varies from a few μm ...

Read More
Mining & Minerals - Muscat Overseas Group

Oman is a major exporter of Chromite Ore, accounting for 10% of the total world production of this mineral. Abundant mid-grade Chromite Ore deposits, coupled with availability of cheap energy and proximity to Sohar port makes this venture ideally positioned to showcase the capability of Oman as a leading supplier of Ferrochrome.

Read More
Rate and Mechanism of Reduction-Dissolution of

Percent chromite dissolution versus time curves obtained for the dissolution of chromite in slags with 43 SiO 2 , 21 Al 2 O 3 , 23 MgO and 13 CaO contained in graphite crucibles at 1550°C under ...

Read More