EPA1 - Process for the manufacture of ferrochrome ...

Medium-carbon ferrochrome is also a product of interest in the foundry industry and in steelmaking plants where refining capacity is limited but low silicon content is desired. Most of the medium-carbon FeCr is produced by the oxygen-converter method. It is based on carbon removal from liquid high-carbon ferrochrome (8% to 9% C, 0.3% to 0.5% Si, 0.04% P) with gaseous oxygen blowing (Karnouhov ...

WOA1 - A method of agglomeration of ferroalloy ...

EP 1 274 870 B1 relates to a smelting process, wherein ferrochrome alloy is manufactured by adding carbide to material containing chromium and iron as oxides. U.S. Pat. No. 4,576,637 relates to a process for the preparation of alloys from pellets. The pellets comprise oxide, carbonaceous reducing agent …

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compressive strength for the cement concrete. Temperature parameter produces a dehydration of the cement at a certain level. This reaction affects the compressive strength of the cement concrete as well as shown in the figures. Table 2: Compressive strength at 8-hour curing time % lingo- Compressive Strength (psi) sulfonate T = 28 oC T =

Uniaxial Compressive Strength - an overview ...

Table 6: Compressive strength of concrete cubes for various percentages of Ferrochrome Slag Aggregate SL NO Percentage of Replacement Compressive Strength (N/mm2) 7Days 14Days 28Days 1 0 31.97 35.65 50.27 2 25 44.39 45.61 52.49 3 50 52.87 56.96 57.47 4 75 54.51 60.30 70.24 5 100 36.79 43.74 55.98 Table 7: ) concrete.

Development of High Strength Concrete Using …

Utilization of ferrochrome wastes such as ferrochrome ash and ferrochrome slag in concrete manufacturing. ... compressive strength, flexural strength, splitting tensile strength and sorptivity, were studied. Results of investigation revealed improvement in strength and durability properties of concrete on inclusion of FA and FS.

Sustainable solidification of ferrochrome slag through ...

Process for the manufacture of ferrochrome alloy comprising the steps of providing a pelletising feed, wherein the pelletising feed comprises chromite ore and silicon carbide as the only carbonaceous material and the only reducing agent; pelletising the pelletising feed to obtain pellets; sintering the pellets to obtain sintered pellets; mixing the sintered pellets with external reducing agent ...

Compression Testing of Green and Dry Iron Ore Pellets

Compressive strength of chrome ore tandartsderikxnl chrome ore crusher compressive strength specifiions impact crusher ore processing impact crusher is suitable for materials whose compressive strength is under 350mpa and particle size is less than 500mm with end products in cubic shape the impact crusher is widely used for sand and rock ...

Sustainable solidification of ferrochrome slag through ...

3.4. UCS test results Compressive strength testing serves as a criterion for determining the minimum cement requirements for proportioning soil cement. According the American Concrete Institute (ACI Committee 230, 1998), the range of UCS for soil-cement is 2.76–6.89 MPa for sandy and gravelly soils (28th day soaked compressive strength).

Compression Testing of Green and Dry Iron Ore Pellets

the 28-day compressive strength of concrete is maximum at 10% ferrochrome slag, whereas the percentage replacement of 5% and 15% ferrochrome slag leads to decrease in compressive strength. The results from Split Cylinder test is also optimum with 10% ferrochrome slag as compared to 5% and 15% ferrochrome slag.

EFFECT OF FERROCHROME SLAG AS PARTIAL REPLACEMENT …

Table 6: Compressive strength of concrete cubes for various percentages of Ferrochrome Slag Aggregate SL NO Percentage of Replacement Compressive Strength (N/mm2) 7Days 14Days 28Days 1 0 31.97 35.65 50.27 2 25 44.39 45.61 52.49 3 50 52.87 56.96 57.47 4 75 54.51 60.30 70.24 5 100 36.79 43.74 55.98 Table 7: ) concrete.

Estimating effect of chrome ore granulometry on sintered ...

Mean tensile strength and compressive strength for selected sedimentary rock types (after Johnson and Degraff, 1988). The behavior of intact rock in the post-peak dom ain is not a true rock property and is partially dependent on the stiffness of the loading system. A testing machine consists of an assembly of

Ferrochrome - an overview | ScienceDirect Topics

A method of agglomeration of ferroalloy fines such as ferromanganese, ferrochrome and ferrosilicon fines comprising the steps of: Providing ferroalloy fines below 10mm size; Sieving <3mm size fraction and crushing 3-10mm to produce <3mm fines; mixing the resulted fines with a phenol formaldehyde resol resin binder in a vessel; compacting the mixed fines in a compressive machine in batches to ...

Cold Compression Strength (CCS) Test RB 1000 - RB Automazione

compressive strength Abstract: Ferrochrome slag, an essential component in stainless steel, is the by-product of ferrochromium production. The composition of the ferrochrome slag and leaching tests show that the chromium content, 3.68%, is high, although the …

STRENGTH PROPERTIES OF ROCKS AND ROCK MASSES 1 ...

Mean tensile strength and compressive strength for selected sedimentary rock types (after Johnson and Degraff, 1988). The behavior of intact rock in the post-peak dom ain is not a true rock property and is partially dependent on the stiffness of the loading system. A testing machine consists of an assembly of

Development of High Strength Concrete Using …

Mar 07, 2017· Compressive Strength. Compressive strength got significantly increased on incorporation of ferrochrome ash FA and gypsum powder GP. At the age of 28 days, the percentage increase in compressive strength for mixes M3, M4, M5 as compared to original concrete mix was reported as 1.49%, 9.28%, 22.06%. respectively.

(PDF) Reuse of Waste Ferrochrome Slag in the Production of ...

Compressive strength, flexural strength, drying shrinkage, thermal conductivity and specific heat of the blended mortars have been conducted according to ASTM standards at 3, 7 and 28 days of curing.

Sustainable solidification of ferrochrome slag through ...

Keywords: Ferrochrome slag, Toxicity characteristic leaching procedure, Static leachability, Unconfined compressive strength, Wet and dry cycles Introduction Ferrochrome (FeCr) slag is a waste product from the car-bothermic reduction of FeCr ore resulting in the produc-tion of high or low carbon FeCr alloy. It is estimated that

Sustainable solidification of ferrochrome slag through ...

Jul 18, 2013· The drop test, compressive strength and porosity of sintered pellet samples from plant and laboratory tests were evaluated. Mathematical correlations of the pellet properties (strength and porosity), ore granulometry and sintering parameters were determined using Statistica (ver7), statistical software package.

Mechanical properties and setting time of ferrochrome slag ...

Ferrochrome (FeCr) slag was used as a precursor for the synthesis of a geopolymer. The effect of KOH concentration, liquid solid ratio (L/S), content of potassium metalisicate (KS) or potassium aluminate (KA), curing time on the unconfined compressive strength (UCS) and metal leachability of the synthesised geopolymer was investigated. A 10 M KOH and an L/S of 0.26 yielded a geopolymer with a ...

Briquetted chrome ore fines utilisation in ferrochrome ...

Keywords: Ferrochrome slag, Toxicity characteristic leaching procedure, Static leachability, Unconfined compressive strength, Wet and dry cycles Introduction Ferrochrome (FeCr) slag is a waste product from the car-bothermic reduction of FeCr ore resulting in the produc-tion of high or low carbon FeCr alloy. It is estimated that

(PDF) IRJET- USING OF FERRO-CHROME SLAG AS A COARSE ...

Key Words: Coarse Aggregate, Compressive Strength, Split Tensile Strength, Ferrochrome Slag, Flexural Strength 1. INTRODUCTION 1.1 General Concrete is a very important material and widely used in construction industry .It offers stability and design flexibility for the residential marketplace and environmental advantages through every stage of ...

USING OF FERRO-CHROME SLAG AS A COARSE AGGREGATE …

Ferrochrome (FeCr) slag was used as a precursor for the synthesis of a geopolymer. The effect of KOH concentration, liquid solid ratio (L/S), content of potassium metalisicate (KS) or potassium aluminate (KA), curing time on the unconfined compressive strength (UCS) and metal leachability of the synthesised geopolymer was investigated. A 10 M KOH and an L/S of 0.26 yielded a geopolymer with a ...