Manganese Ore Sintering

Direct use of manganese fines in the submerged arc furnace (SAF) will lead to the low permeability of the charge, essentially increase the consumption of coke and electric energy. In order to make better use of manganese fines as well as to save energy and cost in the industry, the sintering process of manganese ore is particularly important. In current study, three …

KEYWORDS: Manganese ore, sintering, pelletizing, calcinations. 1. INTRODUCTION Manganese ores (containing more than about 30% manganese) can be broadly categorised as oxides (Mn02, Mn103, Mn3Q4, Mn1Si02 and MnFe204), carbonates (MnC03 and (Mg,Mn)C03 and silicates (silicate ores are of limited economic importance and are not further considered).

Phase analysis. XRD pattern of the Mn-ferrite synthesized from low grade Mn-ore at different sintering temperatures (1000, 1100 and 1200 °C) is shown in Fig. 1.Various phases such as manganese ...

sintering process of manganese ore is particularly important. In current study, three different Mn ores are selected to study the effect of ore proportion and basicity on the properties of sinters. Both small scale and pilot scale sintering experiments were carried out. …

nd reduction reactions were identified. The sinter is composed of the manganese oxide grains bonded by a matrix containing smaller grains of manganese oxides surrounded by well …

ore upgrading, used by the most of ore producers. The performance of manganese ore sinter plants as well as a sinter quality depend strongly on the type and quality of ores used for its production[12,13] but even so there is not a lot of studies concerning manganese ores sintering in comparison with the iron ores sintering studies.

Fine manganese concentrate or fine ores are required to be granulated before the use in blast furnaces or electric furnaces. Under the laboratory conditions, manganese sinter was obtained with the ...

Manganese ore fines generated at Balaghat and Ukwa mines of MOIL were subjected to sintering studies at the R&D Centre of Paramount Sinters Pvt. Ltd. The studies indicated that fluxed sinter with very good strength and porosity could be

The most well-known industrial method for clotting of manganese-containing raw materials is sintering. If manganese carbonate ore is used, it is first roasted. In some cases, the ore is further subjected to sulfuric acid leaching. Then, manganese in the resulting concentrate is reduced by utilizing coke (carbothermic reduction).

The high solid fuel consumption has been a persistent problem for Steel production mills during the sintering process of manganese ore fines. This manuscript adopts the method of pellet-sintering ...

• Please get to know your ore – not only chemical analysis but its mineralogy and mineral association also. • Every deposit is different than other. Response to sintering process parameters may be different. • Conduct basic sintering study to understand amenability of your ore to sintering. A small amount invested in R&D study will be

1. Introduction. Manganese and iron are strategic metal elements, and 90–95% of manganese, in the form of Mn alloys, is consumed in steel production [].With the depletion of rich manganese ore resources, low-grade manganese ores are becoming alternative resources for the extraction of manganese [2,3,4].As reported, almost half of manganese ore resources in India are …

After beneficiation & sintering / pelletization of iron ore, beneficiation and sintering of manganese ore fines attracted technology experts due to massive expansion in manganese based ferro-alloys. Fast depleting high grade lumpy manganese ore deposits made the beneficiation and sintering all the more wanted solution.

Manganese ore pre-treatment include the following: pre-heating in a shaft furnace or rotary kiln withfurnace off-gas; calcinations in a shaft furnace or rotary kiln; nodulizing; sintering ore fines or pellets in a shaft furnace, travelling grate (linear or carousel configurations), grate …

DOI: 10.1007/s40831-024-00866-7 Corpus ID: 270653829; Study on Sintering Technology of Manganese Ore Fines Strengthened by Pellet-Sintering Process @article{Liu2024StudyOS, title={Study on Sintering Technology of Manganese Ore Fines Strengthened by Pellet-Sintering Process}, author={Wei Liu and De-qing Zhu and Jian Pan and Zhenning Wei and Cong-cong …

The experimentation allowing comparison of manganese ore fines pellet sintering and traditional sintering of manganese ore fines in terms of sintering performance are studied. The results show ...

An increasing proportion of fine ore and concentrate is being used in ferroalloy production. This has inspired studies to process these materials in a more economical, reliable and environmentally friendly way in the face of ever-toughening competition in the industry. A process for sintering manganese ore was developed by Outokumpu with equipment proven in the …

Manganese carbonate ores are becoming an increasingly important source of manganese. Usually these ores undergo thermal pretreatment which involves calcination and agglomeration using fossil fuels as the major energy source. In this study, the application of microwave energy for the pretreatment step was investigated.

OPTIMIZING MANGANESE ORE SINTER PLANT - Free download as PDF File (.pdf), Text File (.txt) or read online for free. OPTIMIZING Manganese ore sinter PLANTS: process parameters and design IMPLICATIONS. Manganese ore sintering process relies on a number of complex process parameters. This paper seeks to describe some design considerations of sinter plants.

The process conditions for manganese ore sintering are almost similar to that for iron ore. The author has actively contributed to projects for setting up of batch type (capacity 15000 tpa) sinter ...

Upon sintering in air, MnO2 was reduced to Mn2O3 and Mn3O4, sintering of manganese ores in hydrogen or carbon monoxide reduced higher manganese oxides to MnO and iron oxides to metallic iron. Calculated equilibrium phases using FACTsage for ores heated under a reducing gas atmosphere were in agreement with XRD analysis.

Due to the randomness of all factors influencing the sintering operation, a two-stepped procedure is proposed to find the best way of using stocked fines at a plant producing Fe-Mn alloys for the steelmaking industry. The approach is based on the following: (1) predict the result of the sintering operation by establishing the best multilinear regression model using some of the …

The following report highlights the pertinent conclusions of a feasibility study by Pyromet Technologies (Pty) Ltd. for a new 250,000tpa Manganese Ore Sinter Facility in South Africa.

MAIN PHASES OF SINTER • Mn 3O 4, manganese oxide • Mn 2AlO 4, manganese aluminium oxide • MnO, manganosite • Mn 2SiO 4, tephroite-25 -20 -15 -10 -5 0 5 10 15 20 20 15 10 5 0-5-10-15-20-25 Mn-C -O Phase Stability Diag ram at 1350 …

Amankwah and Pickles (2005) studied the microwave calcination and sintering of a manganese carbonate ore. Temperatures of over 1300 o C could be achieved for a 100g sample at 1000W incident ...

Previous research has mainly concentrated on the characterization, as well as pelletizing and sintering behaviors, of pure iron ores and manganese ores with very high Mn/Fe mass ratios [15][16][17 ...

For sintering of manganese ore with added manganese furnace dust in sinter pot A (150 300mm) in test series 1 and 2, both sinter yield and zinc removal rate consistently decreased with increasing sintering time, and the overall zinc removal rate was low, in the range of 11.5–23% de-

One of the most important metallurgical problems to be solved in the production of ferro-alloys is the efficient use of ore fines. In this paper, the smelting of manganese ferro-alloys in electric …

In this paper the process is first described in brief. Then pilot tests with different types of manganese ores are discussed with the sintering properties of the ores and physical and …

High grade manganese ore fines are generated at Balaghat, Ukwa and Dongri Buzurg mines of MOIL. MOIL was keen to conserve high grade fines by suitable agglomeration process and …