آخرین محصولات

Physico-Chemical and Mechanical Characterization of Ferrochrome Slag …

Among many industrial wastes types, ferrochrome slag is one of the wastes. The ferrochrome is extracted during the smelting process called sub-merged arc furnace at an elevated temperature of around 1200 °C [5, 6]. After the extraction of FeCr from the ore, hot molten is air-cooled under ambient condition.

CHARACTERIZATION OF FERROCHROME SMELTER …

Figure 2. 4: Ferrochrome smelting slag at 1600 QC containing non-dissolvedPAC (Hayes, 2004) : 21 Figure 2. 5: Ferrochrome smelting slag "slowcooled" from the furnace showing the precipitationofsecondary spinel (Hayes, 2004) 21 Figure 2.6: Typical slag processing at laboratory 23 Figure 2. 7: Calibration curve for Cr in a FeCralloy (Willis, 2004) 30

Ferrochrome slag: A critical review of its properties, …

Ferrochrome slag (FCS) is a by-product of ferrochrome industries and is produced during the extraction of ferrochrome from chromite ore. The chemical composition of FCS comprises of 27–33% SiO2 ...

Ferrochrome Slag/Chromite Smelting Slag Processing Line

Introduce Ferrochrome Slag Processing in Zimbabwe IMAG0153. This program is formulated according to the specific nature of ferrochrome smelting slag, and integrates crushing, screening, jigging, dewatering and other processes to treat ferrochrome smelting slag, so as to finally achieve the purpose of recovering ferrochrome alloy from …

Ferrochrome slag aggregate: physical-chemical characteristics and

Ferrochrome slag (FS) is another residue that is obtained as a solid waste by the smelting process during the production of stainless steel in Ferroalloy industries. FS possesses the required ...

Characteristics of ferrochrome slag aggregate and its uses …

Section snippets Ferrochrome slag production. FCS is generated as a by-product during the production of ferrochrome (FC) alloy that consists mainly of chromium and iron, containing 50–70% of chromium by weight and various amounts of iron, carbon, and other elements [11].

Sustainable solidification of ferrochrome slag through

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. …

Mechanism of the Direct Reduction of Chromite …

This process can be defined as the production of a metallic ferrochrome from chromite ore using a carbon reductant in the presence of a molten salt without melting the whole feed. It differs from smelting in electric arc …

Characteristics of ferrochrome slag aggregate and its uses …

The residual chromium depends largely on the ore quality as well as the efficiency of the smelting process. Typically, Cr 2 O 3 is reported to form less than 10% of the total FCS compositions. In some instances, it was reported to be as low as 2.12% ... Ferrochrome slag utilization in concrete and mortar as an aggregate replacement.

Process Flow of Recovering Ferrochrome from Ferrochrome Smelting Slag

Ferrochrome smelting slag has a relatively high hardness, and most of the cost of processing ferrochrome slag lies in the crushing process. Reducing the loss of the crushing process is the key to increasing profits. After several generations of equipment production practices, Forui Machinery has designed the process flow and equipment ...

Environmental and technical assessment of ferrochrome slag …

In ferrochrome manufacturing process, the slag is a reactive medium, where most of the reduction reaction takes place. Ferrochrome (FeCr) slag is found to consist of mainly silica, alumina and magnesia with significant amounts of chromium and iron oxides in the form of Partially Altered Chromite (PAC) and entrained ferrochrome …

Ferrochrome slag: A critical review of its properties, …

Ferrochrome slag is a by-product of the production of ferro-chrome alloy, an essential component in stainless steel. The conventional process of ferrochrome …

A Short Review on Utilization of Ferrochromium Slag

The ferrochromium slag is an important by-product of ferrochromium industries. Recycling and efficient utilisation of the large volumes of slag generated by ferrochrome production process is a ...

High Carbon Ferrochrome Technology

The most common recovery process is to crush the slag (in the case of the first slag-handling method) and recover the alloy particles in a wet jigging process. In particular cases where the high carbon ferrochrome is sufficiently magnetic, magnetic separation techniques can also be applied.

Comprehensive Characterization of Ferrochrome Slag and …

Ferrochrome slag is a by-product generated during the extraction of ferrochrome whereas ferrochrome ash is a by-product of the ferroalloy industry. FCA …

Ferrochrome Slag Processing

Total 10 Ferrochrome Slag Processing Products Gallery View . List View . Slide Show Video. Quick View. Best Price Smelting Slag Ferrochrome Slag Chromite Smelting Slag Ferrochrome Slag Washing Plant FOB Price: US $2,050-15,200 / Piece. Min. Order: 1 Piece . Contact Now. Video. Quick View ...

Ferrochrome slag: A critical review of its properties, …

Ferrochrome slag (FCS) is a by-product of ferrochrome industries and is produced during the extraction of ferrochrome from chromite ore. The chemical composition of FCS comprises of 27-33% SiO 2, 15-25% Al 2 O 3, 20-35% MgO, and 10-15% iron-chromium compounds.The high chromium content of FCS and the possibility …

Recovery of metal from slag/mixed metal generated in …

Furthermore, the slag from the smelting furnace often tends to be viscous and retains particles of the metal of the order of 1–2%. The dump at the ferrochrome plant, Bamnipal, containing valuable ferrochrome justified the construction of a "metal from slag recovery plant", if a suitable process could be developed.

Ferroalloy Refining Process

Process flow: the liquid silico-manganese alloy produced in the submerged arc furnace and the high-manganese slag produced in the refining electric furnace are poured into the shaking ladle. The shaking allows the slag and metal to be highly emulsified, accelerates reaction rate of desiliconization, and discards the final slag (low …

Processing Slag from Ferroalloy Production

refined ferrochrome. Slag from refined-ferrochrome smelting is susceptible to silicate decomposition and breaks down to powder on cooling. To extract metal, the slag is subjected to pneumatic and magnetic separa-tion. The intact slag pieces and the alloy inclusions that are obtained in the separation process are returned for

Ferrochrome

(1) After the slag from the slag furnace is put into the first bucket, the preliminarily desilicated silicochromium from the other bucket is mixed. Due to the large excess of slag oxidant and sufficient desiliconization, extra-low-carbon ferrochrome with silicon content less than 0.8% and carbon content as low as 0.02% can be obtained.

EESTech Announces Environmental Impact Assessment for …

NEW CASTLE, Del., Aug. 19, 2019 /PRNewswire/ — EESTech (OTC: EESH) – EESTech's Environmental Impact Assessment (EIA) process for the Samancor Ferrochrome slag reclamation project has commenced with the appointment of EkoInfo (), a highly respected South African Environmental & Wildlife Management Consultancy.

Environmental and technical assessment of ferrochrome slag …

Ferrochrome slag is a major solid waste generated from submerged electric arc furnaces during manufacturing of ferrochrome alloy. The waste slag has excellent …

Processing Slag from Ferroalloy Production

In the processing of ferroalloy slag, attention focuses on the extraction and use of alloys and the reuse of mineral components. Magnetic separation is tradi-tionally employed to …

Review Ferrochrome slag: A critical review of its properties

The conventional process of ferrochrome making involves the carbothermic reduction of chromite ore where around 1.2–1.5 tons of slag containing approximately …

High Carbon Ferrochrome Technology

High carbon ferrochrome is one of the most common ferroalloys produced and is almost exclusively used in the production of stainless steel and high chromium steels. Production takes place primarily in countries with substantial chromite ore supply. Relatively cheap electricity and reductants also contribute to the viability of high carbon ferrochrome.

Feasibility study of utilisation of ferrochrome slag as fine …

Utilisation of ferrochrome slag as partial substitution of the fine aggregates and incorporation of rice husk ash (RHA) in place of cement has been carried out in this study to generate a sustainable concrete. For this, workability, compressive strength (CS), split tensile strength (STS), flexural strength (FS), rebound number (RN), ultrasonic …

A Short Review on Utilization of Ferrochromium Slag: Mineral Processing

The ferrochromium slag is an important by-product of ferrochromium industries. Recycling and efficient utilization of the large volumes of slag generated by ferrochrome production process is a huge challenge for ferrochrome producers. This article reviews ferrochromium slag utilization with reference to refractory, ceramics and …

Fundamentals of Ferrochrome (FeCr) Alloy and Its Slag

In this chapter, the fundamentals of ferrochrome slag chemistry are discussed. Results obtained by different workers are cited and thermodynamics models …

Ferrochrome Slag as an Alternative Mould Material for …

Therefore, in the present investigation, ferrochrome slag is used as alternative materials in green sand mould casting process. The effect of moisture and bentonite clay on slag mould shear strength and compactibility is evaluated. It is observed that the slag mould containing 7% moisture and 14% bentonite has 0.47 kg/cm 2 shear …

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