Effect of manganese ore and basicity on the consolidation
The results showed that compared with no manganese ore and natural basicity, the compressive strength, reduction degree of pellets, iron and nickel for the reduced pellets …
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Influence of the Binder on the Mechanical Properties of the …
Figures 4-6 show the compression strength of the self-reducing green pellets, measured every four days until the 28th. Figure 4 shows that strength of the pellets with additions of bentonite …
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(PDF) Preparation and application of alkali-activated cementitious
Chromite ore processing residue (COPR) is a typical hazardous waste, which contains Cr(vi) and poses a great threat to the ecological environment and human health. ...
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Research on the environmental stability performance of chromite …
Chromite ore processing residue (COPR) is a hazardous waste because of leachable chromium, ... The compressive strength of the solidified specimens in the control …
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Methane–Hydrogen-Based Pre-reduction Chromite: …
Behavior and Pellet Compressive Strength SHAOWEN WU,1 XIAOMING FENG,2 YANLING ZHANG,1,3 LIQUN MA,1 and YUE LI1 1.—State Key Laboratory of Advance Metallurgy, …
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Value-added utilization of waste silica powder into high-quality
Adding silica powder contributed to improving the compressive strength and drop number of chromite pellets with high Cr/Fe ratio of 2.55, and two kinds of strength showed an …
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Methane–Hydrogen-Based Pre-reduction Chromite: Reduction
The research primarily investigates the reduction behavior and compressive strength of chromite pellets in atmospheres based on methane and hydrogen. The findings …
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Ferrochrome slag: A critical review of its properties, environmental
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 …
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Chromite Sand Testing
Typical Chromite Sand Testing • South African Chromite Sand is the world standard for metalcasting and foundry applications, however there can ... • Transverse tensile strength and …
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Detoxification and immobilization of chromite ore processing …
The compressive strengths of MGCSx specimens are shown in Fig. 2. The compressive strength of pure MG is 65 MPa. With the molar ratio of S 2− /Cr(VI) increasing …
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Preparation and application of alkali-activated cementitious …
This slowdown impacted the increment of compressive strength and even led to a downward trend. 31,32 Huang et al. 2017 (ref. 1) demonstrated that appropriate ratios between SiO 2 and …
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Recycling of Chromite Waste For Concrete: Full Factorial Design
This document describes an experiment that uses a full factorial design to investigate the effect of different factors on the compressive strength of concrete containing chromite waste as an …
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The Effect of Carbonaceous Reductant Selection on Chromite Pre
By comparing the compressive strength results with the volatile contents of the reductants, it appears that a higher volatile content caused a decrease in pellet compressive …
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Chromite Sand Testing
• MTI laboratories can measure tensile strength in a variety of commonly used foundry binder systems such as phenolic urethane no bake (PUNB), furan no bake (FUNB), ester cured …
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chromite compressive strength
· The influence of chromite with different Cr/Fe ratios on compressive strength of preheated and roasted pellets is described in Fig. 4. When increasing the Cr/Fe ratio from 1.35 to 2.55, the …
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Solidification/stabilization of chromite ore processing residue …
The compressive strength of solidified body decreases as COPR increases. The better effect of BFS-FA on the compressive strength as compared to OPC is due to its unique …
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Key Properties of Refractory Materials
Magnesia-chromite 60/40 (13 - 22 % porosity) 1,600: 30 - 80: Silica (sand, 23% porosity) 1,630: 10: Magnesite: 1,600 - 1,800: 35 - 60: Chromite (14-21% porous) 1,650: 25 - 95: ...
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Compressive strength of undersized particulate material (also …
Compressive strength of undersized particulate material (also referred to as pre-oxidized chromite fines) containing pellets (a), and micrographs of aluminosilicate-type particles (white boxes ...
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crushing strength of chromite ore
Chromite crusher specifications.chrome ore crusher compressive strength specificationsmining crushers mainly include jaw chromite is an iron chromium oxide mineral and the only ore of …
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Compressive Strength and Creep Behavior of a Magnesium Chromite …
The compressive strength of a magnesium chromite refractory in nitrogen was measured by rapidly loading specimens to failure at several temperatures up to 1600 O C. Strength …
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FACTORS AFFECTING THE REDUCIBILITY OF …
the chromite mineral in the raw material in respect of kinetic reasons (retention time in smelting). 1. INTRODUCTION ... Th e factors studied were as follows: sintering temperature, …
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e Relationships between compressive strength of pellets and (a
Download scientific diagram | e Relationships between compressive strength of pellets and (a) reducing gas composition, (b) degree of Fe metallization and (c) Fe 2þ degree. from …
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Research on the environmental stability performance of chromite …
PDF | Chromite ore processing residue (COPR) is a hazardous waste because of leachable chromium, especially Cr(vi). ... However, in the freeze–thaw cycle experiments, the …
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Influence of the Binder on the Mechanical Properties of the Chromite
Thus, although the objective of the chromite pre-reduced process is to achieve maximum pre-reduction, the strength of prereduced chromite pellets is significantly enhanced by the thin …
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Solidification/stabilization of chromite ore processing residue …
The LZSS was solidified in composite based geopolymer sample having highest compressive strength. While, the compressive strength was decreased to 15 MPa with 80% …
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The reduction of chromite ore processing residues by green tea
The compressive strength is a vital parameter, usually used to evaluate the suitability of cementitious binders/solidified bodies for construction purposes and also used for …
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Methane–Hydrogen-Based Pre-reduction Chromite
and compressive strength of chromite pellets in atmospheres based on me-thane and hydrogen. The findings indicate that the reduction of pellets is positively influenced by temperature, …
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(PDF) Methane–Hydrogen-Based Pre-reduction Chromite
The research primarily investigates the reduction behavior and compressive strength of chromite pellets in atmospheres based on methane and hydrogen. The findings …
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Preparation and application of alkali-activated cementitious …
Chromite ore processing residue (COPR) is a typical hazardous waste, which contains Cr ... As shown in Fig. 1(c), the compressive strength initially increases and then …
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Cemented Rock Fill (CRF) Design for Extraction of Locked-Up Chromite
The findings reveal that the compressive strength of the CRF placed with low compaction in a stope can be considered as 75% of the compressive strength of the CRF …
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Unique challenges of clay binders in a pelletised chromite pre
The compressive strength of the bentonite containing pre-reduced pellets generally improved with increased clay content between 2 and 5 ... It was also shown that higher clay …
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