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Dephosphorization of phosphorus-rich manganese ores by

1981-10-1  Dephosphorization of phosphorus-rich manganese ores by selective leaching with dilute hydrochloric acid. Int. J. Miner. Process., 8: 359--375. Leaching of three high-phosphorus manganese ore samples from central India with dilute hydrochloric acid (0.1--0.6 M) has been found to reduce their phosphorus contents below the specified limit of 0.12%.

Dephosphorization of high-phosphorous manganese ores

2000-2-1  Because conventional (physical) methods of ore dressing are not suitable for reducing the phosphorus contents of high-phosphorous manganese ores from Andhra Pradesh (AP) and the adjoining area in southern Orissa, India, the adoption of chemical methods becomes imperative. An attempt was therefore made to reduce the phosphorus content of partially beneficiated manganese ores from AP

Dephosphorization of high phosphorus oolitic hematite by

2017-8-1  Kanungo and Mishra (2000) investigated the dephosphorization of high phosphorus manganese ores in India. In these high phosphorus manganese ores, the phosphorus can be reduced to 0.15% or less by roasting the ores with 2–6 wt% NaCl at 750–800 °C followed by leaching in 0.5–0.75 M HNO 3 at 40–60 °C for a period of 15–20 min. Nwoye

Dephosphorization of high-phosphorous manganese ores

High-phosphorus manganese ores provide an important source of manganese, which is regarded as an irreplaceable material in the steel industry.

Removal of Phosphorus from High-Phosphorus

2019-11-13  High-phosphorus manganese ores provide an important source of manganese, which is regarded as an irreplaceable material in the steel industry. The ammonia-ammonium carbonate leaching method was proposed for the removal of phosphorus and extracting manganese from high-phosphorus manganese ore, both effectively and environmentally. To explore the dissolution behavior of

Production of (Mn,Fe)-Carbide Containing Low

The dephosphorization process for high phosphorus iron ores have recently been studied employing several methods. However, few researches of phosphorus removal from high phosphorus manganese ores have been carried out compared with those about the high phosphorus iron ores. As a potential

Removal of Phosphorus from High-Phosphorus

2019-12-16  High-phosphorus manganese ores provide an important source of manganese, which is regarded as an irreplaceable material in the steel industry. The ammonia-ammonium carbonate leaching method was proposed for the removal of phosphorus and extracting manganese from high-phosphorus manganese ore, both effectively and environmentally.

DEVELOPMENT OF A PROCESS FOR

2015-5-22  The high phosphorus content (0.35-0.50%) of high carbon ferromanganese originates from the manganese ores, majority of which contain significant amount (~0.2%) of phosphorus which is reduced almost completely during smelting reduction from its oxides. In India, low phosphorus ores are depleting fast and the high carbon ferromanganese pro-

Refining of manganese alloys with high content of

2020-11-6  Refining of manganese alloys with high content of phosphorus obtained in electrometallurgical dephosphoration of manganese ores Підтверджена доцільність проведення процесу дефосфорації сплаву в одну стадію з використанням

Involvement of the Domestic Manganese Ores in

2020-10-28  One of the most important parameters of manganese ores and concentrates is the phosphorus-to-manganese ratio (P/Mn), which must be ≤0.003. The domestic manganese-containing raw materials should be subjected to dephosphorization for melting standard manganese ferroalloys with the required phosphorus content.

Removal of Phosphorus from High-Phosphorus

2019-11-13  High-phosphorus manganese ores provide an important source of manganese, which is regarded as an irreplaceable material in the steel industry. The ammonia-ammonium carbonate leaching method was proposed for the removal of phosphorus and extracting manganese from high-phosphorus manganese ore, both effectively and environmentally. To explore the dissolution behavior of

Dephosphorization of Liquid Ferromanganese P.N.'

2012-7-12  manganese ores [1]. The majority of manganese ore deposits in central India have relatively high (> 0.3%) phosphorus levels. Since phosphorus is intimately associated with manganese [1], physical beneficiation is unsuitable and chemical beneficiation is necessary. Phosphorus' removal through chemical beneficiation requires comminu-

DEVELOPMENT OF A PROCESS FOR

2015-5-22  The high phosphorus content (0.35-0.50%) of high carbon ferromanganese originates from the manganese ores, majority of which contain significant amount (~0.2%) of phosphorus which is reduced almost completely during smelting reduction from its oxides. In India, low phosphorus ores are depleting fast and the high carbon ferromanganese pro-

Advance in dephosphorisation of high phosphorus iron

In order to make good use of huge amount of high phosphorous iron ore for the ironmaking industry, the characteristics and advances in the dephosphorization technologies of high phosphorus iron ore were introduced, such as mill run, chemical leaching, bio-leaching and

Dephosphorization Behavior of High-Phosphorus Oolitic

2018-11-5  In China, high-phosphorus oolitic hematite constitutes approximately 11.1% of iron reserves, hence the application of recovering these refractory ores can be considered based on current situation [1]. However, the intimately intermixed structural unit of both fluorapatite and chamosite in high-phosphorus oolitic hematite have caused huge

Refining of manganese alloys with high content of

2020-11-6  Refining of manganese alloys with high content of phosphorus obtained in electrometallurgical dephosphoration of manganese ores Підтверджена доцільність проведення процесу дефосфорації сплаву в одну стадію з використанням

Production of (Mn,Fe)-Carbide Containing Low

The dephosphorization process for high phosphorus iron ores have recently been studied employing several methods. However, few researches of phosphorus removal from high phosphorus manganese ores have been carried out compared with those about the high phosphorus iron ores.

SIPS2016 Phosphorus removal from high-phosphorus

Phosphorus from high-phosphorus rhodochrosite affects electrolysis efficiency, leads to excess phosphorus in manganese metal during electrolytic manganese metal, and affects the steel productions performance and quality. Chemical precipitation technology in the presence of removing reagents was studied to remove phosphorus from acidic leach liquor that is produced by sulfuric acid leaching of

A case study on high phosphorous content in

2021-11-9  A case study on high phosphorous content in manganese ore of Keonjhar-Bonai belt, Odisha, India. Objectives : The objective of this study is to find out whether there exists a relation ship between phosphorous,manganese and iron within manganese ore body and to find out the possible reason behind the increase in phosphorous content in

Dephosphorization of high carbon ferromanganese using

The phosphorus level was reduced to 0.18 % from an initial level of 0.56 % when the reaction was carried out at 13000C using 16 Wt % BaCO3-BaF2 fluxes. The manganese loss was restricted in the range of 2-5%. However, it was found that the degree of dephosphorization decreased significantly with increase in the initial silicon content of the alloy.

A case study on high phosphorous content in

2021-11-9  A case study on high phosphorous content in manganese ore of Keonjhar-Bonai belt, Odisha, India. Objectives : The objective of this study is to find out whether there exists a relation ship between phosphorous,manganese and iron within manganese ore body and to find out the possible reason behind the increase in phosphorous content in

Type of the Paper (Article

Metals 2021, 11, 1190 2 of 13 manganese [4,5]. There have been various studies dealing with the dephosphorization of manganese alloys and manganese ores [6–12]. Fujita et al. [6] proposed a dephosphorization method of the Mn alloy using a flux

Phosphorus removal from manganese ore by plasma

2021-8-17  As good quality ores of low phosphorus are depleted, the phosphorus content in manganese ores increases, and thus, the development of a new dephosphorization technology is needed. For this purpose, the removal of phosphorus compounds by vaporization directly from manganese ores using a plasma system was investigated in this study.

High-Quality Low Phosphorous Manganese Alloys for

High-Quality Low Phosphorous Manganese Alloys for Production of Steel of Low-Temperature Reliability. Article Preview. Abstract: The problem of enrichment and dephosphorization of poor manganese ores for receiving the low-phosphorous alloys necessary for smelting of steel of low-temperature reliability is considered.

Reaction Behavior of Phosphorus in Coal-Based

2017-5-9  iron ore. It was reported that acid leaching of high phosphorus-containing iron ores could dramatically reduce the phosphorus content in concentrates [13–16]. For example, the hydrochloric acid leaching of an iron ore containing 1.16% phosphorus removed 98% phosphorus at a particle size of 100% passing 0.147 mm.

DEVELOPMENT OF A PROCESS FOR

CiteSeerX Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): The bulk of high carbon ferromanganese produced in India continue to have more than 0.35 % phosphorus since they are produced by carbothermic reduction process. The low phosphorus manganese ores are deplet-ing fast and ferromanganese manufacturers will have no option but to use medium and low grade ores having

BENEFICIATION, DEPHOSPHORIZATION AND

2021-11-30  al, (1999)) and this is the theoretical base for the bio dephosphorization of high phosphorus iron ores. Organic acids producing filamentous fungi have been used to remove phosphorus from ores in a series of reports (Parks et al, 1990; Buis, 1995; and Delvasto et al, 2005). The use of acidithiobacillus ferrooxidans in the metal extractions

Effect of some commercial flocculating agents on settling

2010-5-3  Keywords: Manganese ore fines, flocculation, polymeric flocculants, settling and filtration rates, specific cake resistance IPC Code: C02F1/52 The beneficiation of highly weathered, low grade, high phosphorus manganese ores of Visakhapatnam district, Andhra Pradesh has been a challenging task. Because of their fragileness a large quantity of fines,

Production of low phosphorus steels from high

2019-4-9  A~traet. The position in India on the phosphorus front vis-a-vis iron and steel operations elsewhere in the world is, and will remain, most unfavourable since Indian iron ores contain high phosphorus and coal (and therefore, also the coke), has high ash and phosphorus in

高磷鲕状铁矿酸浸脱磷

2013-1-28  The experimental ore is Exi high phosphorus oolitic iron ore with 0.5% phosphorus, 51.7% iron and 0.34% sulphur. After acid leaching, the P content decreases to about 0.07%, the iron loss during acid leaching is about 0.18%, and the S content is 0.35%, which can