PRODUCTION, CHARACTERISTICS AND USE OF FERROCHROMIUM SLAGS

The conventional process of ferrochrome making involves the carbothermic reduction of chromite ore where around 1.2–1.5 tons of slag containing approximately 8–12% …

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 alloy [4].At smelting condition, …

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 is the dust produced …

A Short Review on Utilization of Ferrochromium Slag

ABSTRACT 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 construction …

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.

Ferrochrome smelting slag treatment plan

The treatment plan of ferrochrome smelting slag comprehensively adopts the processes of crushing, screening, jigging, and dewatering. First, coarse crushing is used to crush a large piece of ferrochrome smelting slag in …

Ferrochrome Slag Processing

Total 10 Ferrochrome Slag Processing Products Gallery View . List View . Slide Show Video. 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. Expert-Approved Smelting Slag Ferrochrome Slag Smelting Slag Processing Chromite ...

A critical review of the material characteristics, utilizations

Ferrochrome slag is a common industrial solid waste produced during the smelting of chromite in submerged arc furnaces [8].In the current production process, for every 1 ton of ferrochrome alloy manufactured, approximately 2.5 tons to 2.6 tons of chromite are consumed, resulting in the production of 1 ton to 1.2 tons of ferrochrome slag [9], [10]. ...

Mastering Ferro Chrome Recovery Techniques in South Africa

In Southern Africa, the recovery of valuable metals from ferrochrome slag has seen significant success, with commercial plants achieving an impressive 96% recovery rate. Furthermore, the utilisation of hydrochloric acid at low temperatures for magnesium recovery from ferrochrome slag has proven to be an effective technique.

A Short Review on Utilization of Ferrochromium Slag: …

Recycling and efficient utilization of the large volumes of slag generated by ferrochrome production process is a huge challenge for ferrochrome producers. This article …

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.

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. A 10 M …

Comprehensive Characterization of Ferrochrome Slag …

atures, different sizes of ferrochrome slag aggregates are formed. After alloy recovery, air-cooled slag of 10–20mm size is produced, which has been utilized as coarse aggregate by numerous researchers [17]. Ferrochrome slag that has been water-cooled is present in granulated form with grain sizes that are similar to natural sand ...

(PDF) Comprehensive Characterization of Ferrochrome Slag …

Ferrochrome slag (FCS) and ferrochrome ash (FCA) are by-products generated during the production of ferrochrome alloy in the ferrochrome industry.

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 ...

Preparation and Hydration Mechanisms of Low Carbon Ferrochrome Slag …

Low carbon ferrochrome slag (LCFS) is the metallurgical waste slag from the carbon ferrochrome alloy smelting process. Compared with high carbon ferrochrome slag, LCFS has great potential as cementitious material; the chemical compositions of the two types of slag are quite different. In this research, composite cementitious materials are prepared which use …

ESTIMATION OF SLAG IN FERROCHROMIUM for TMS …

Slag is inherent in the process. It has a much lower density than the metallic FeCr. Some chrome may be trapped in the slag as either FeCr or Cr2O3. ... metallic ferrochrome, it adds undue weight to the slag. This must be accounted for in the . calculations. The Cr that is determined in metallic FeCr is the base value of the FeCr in the

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 ...

20TPH Ferrochrome Slag Recovery Plant in South Africa

This processing plant is for the slag to recovery the Ferrochrome. The process is as below: The wheel loader or excavator feeds the raw slag to the hopper. There is an Electromagnetic vibration feeder under the hopper, which can feed the material to the belt conveyor more evenly.

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-manganese slag).

Value Extraction from Ferrochrome Slag: A Thermochemical …

The valorization of slag from the production of high-carbon ferrochrome is a challenge for ferrochrome producers. The recycling of high-carbon ferrochrome slag was explored through the smelting route to recover Fe–Si–Al–Cr alloys and reengineer the residual slag for alumina-enriched refractory material. In this research, the focus was to reduce the SiO2% and …

CHARACTERIZATION OF FERROCHROME SMELTER SLAG …

Slag samples from a ferrochrome smelter were analyzed using an XRF powder pellet analytical technique in contrast to the rep technique used at the plant laboratory, to determine their …

Processing of Low-Grade Chromite Ore for Ferroalloy

However, mineralogy of ferrochrome slag is difficult to interpret, because of the presence of synthetic minerals and chromium in different oxidation states. EDAX analysis of ferrochrome slag (Table 9) at different spots (Fig. 6d) shows a clear difference between major slag phases with minor specks of metal. Fe and Cr are the major elements in ...

Fundamentals of Ferrochrome (FeCr) Alloy and Its Slag

Hence, ferrochrome slag is thought to be a useful raw material for production of high temperature insulation bricks, construction work using geopolymer made from chromium slag, etc. Therefore, R&D scientists are trying to find suitable uses for other applications. In this chapter, the fundamentals of ferrochrome slag chemistry are discussed.

Ferrochrome Slag Feasibility as a Raw Material in Refractories

This paper reports the characteristics of ferrochrome slag and its feasibility as aggregate in refractories aiming to substitute raw materials. Refractory castable …

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.

Exploring beneficial uses of ferrochrome slag: A case …

The results of this study supports that reuse of FeCr slag has financial, environmental and business/operational benefits that will ensure sustainability of natural resources and circular …

Review on Preparation of Medium- and Low-carbon …

temperature, fast" is the basic principle of converter smelting ferrochrome. Hu [19] proposed the process of extending the slag method of the converter age for some problems such as short furnace age and high refractory consumption in the pro-duction of medium- and low-carbon ferrochrome in pure oxygen top-blown con-verter.

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 ...

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 …

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 smelting slag.

Characteristics of ferrochrome slag aggregate and its uses …

Ferrochrome slag (FCS) ... Ferrochrome slag is an industrial by-product material extracted during the production process of ferrochrome alloy, which is mostly used in the stainless steel industry ...

(PDF) An Overview of Currently Applied Ferrochrome

Ferrochrome (FeCr) is the main source of chromium (Cr) units used in modern-day chromium (Cr) containing alloys. The vast majority of produced Cr is used during the production of stainless ...