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stone coal recovery

Recovery of vanadium and carbon from low-grade stone
2015-11-1 · Trans. Nonferrous Met. Soc. China 25(2015) 3767âˆ’3773 Recovery of vanadium and carbon from low-grade stone coal by flotation Li WANG, Wei SUN, Qing-peng ZHANG School of Mineral Processing and Bioengineering, Central South University, Changsha 410083, China Received 1 December 2014; accepted 20 March 2015 Abstract: Flotation technology of high
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Recovery of sulfuric acid from a stone coal acid leaching ...
2017-11-1 · Diffusion dialysis was employed to recover sulfuric acid from a stone coal acid leaching solution. The dialysis coefficients of H +, V, Al, Fe, Mg, K, F, P, and S ions in a stone coal acid leaching solution for an anion exchange membrane were determined.The effects of the flow rate, flow rate ratio, and water osmosis rate as well as ion rejection on sulfuric acid
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Phase transformations of vanadium recovery from
recovery from stone coal, especially for high alumino–silicate-containing refractory stone coal, still lacks suﬃcient scienti c evidence. In addition, the phase transformation and the ion leaching behavior during the recovery process require further investigation for the guidance and reference of this technology.
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Mechanisms of Vanadium Recovery from Stone Coal by
2016-3-29 · In this report, the vanadium recovery mechanisms by novel BaCO3/CaO composite additive roasting and acid leaching technology,
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Recovery of vanadium from alkaline leaching solution
2020-10-29 · recovery of vanadium from alkali leaching solutions. MATERIALS AND METHODS Materials The stone coal in this study is black and rock-like in appearance. This fuel with low caloriﬁc value can be treated as a polymetallic ore. It contains mostly quartz, illite, kaolinite, pyrite, and 18% organic matter with main chemical composition being 1% V 2 ...
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Blank roasting and bioleaching of stone coal for vanadium ...
2020-1-10 · The recovery and utilization of vanadium from stone coal is of great significance because it is an important metal. In the present study, a cleaner metal extraction method to recover vanadium from low-grade stone coal using a novel strain of Bacillus mucilaginosus (BM) and an enhanced bioleaching procedure was explored. The efficient leaching bacteria of BM
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Vanadium Transitions during Roasting-Leaching Process
2018-6-20 · For the process of vanadium extraction from stone coal, the vanadium recovery by the roasting-leaching procedure is around 65–75%, while for other procedures, such as ion exchange, solvent extraction, and vanadium precipitation, the vanadium recoveries are more than 97% [9,10]. Therefore, the total vanadium recovery depends on the vanadium
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The technology of extracting vanadium from stone coal in ...
2011-9-1 · Stone coal is widely distributed in southern provinces and autonomous region of China and Shanxi province. It is reported that the gross reserves of stone coal in these districts are estimated at 61.88 billion tons ().Vanadium is commonly founded in stone coal and the gross reserves of vanadium is 118 million tons in the terms of V 2 O 5 (), accounting for more than
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Extraction of vanadium from stone coal by modified salt ...
2011-11-16 · high recovery of vanadium, this technology has been widely applied to treat stone coal in many places for over 40 years. However, the released exhaust gas containing ...
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(PDF) Mechanisms of Vanadium Recovery from
2016-3-29 · The kinetic model of vanadium recovery from stone coal using novel composite additive BaCO3/CaO could be finally established. Effect of leaching temperature on vanadium leaching efficiency. ...
Details
Phase transformations of vanadium recovery from
recovery from stone coal, especially for high alumino–silicate-containing refractory stone coal, still lacks suﬃcient scienti c evidence. In addition, the phase transformation and the ion leaching behavior during the recovery process require further investigation for the guidance and reference of this technology.
Details
Recovery of vanadium and carbon from low-grade stone
2015-11-11 · Flotation technology of high-carbon stone coal bearing vanadium was investigated based on mineralogical study. Carbon and vanadium flotation circuits were included in the flotation process for carbon and vanadium mineral concentrates. Carbon and
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Mechanisms of Vanadium Recovery from Stone
2016-3-29 · In this report, the vanadium recovery mechanisms by novel BaCO3/CaO composite additive roasting and acid leaching technology, including the phase transformations and the vanadium leaching kinetics, were studied.
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Blank roasting and bioleaching of stone coal for vanadium ...
2020-1-10 · The recovery and utilization of vanadium from stone coal is of great significance because it is an important metal. In the present study, a cleaner metal extraction method to recover vanadium from low-grade stone coal using a novel strain of Bacillus mucilaginosus (BM) and an enhanced bioleaching procedure was explored. The efficient leaching bacteria of BM
Details
Vanadium Transitions during Roasting-Leaching Process
2018-6-20 · For the process of vanadium extraction from stone coal, the vanadium recovery by the roasting-leaching procedure is around 65–75%, while for other procedures, such as ion exchange, solvent extraction, and vanadium precipitation, the vanadium recoveries are more than 97% [9,10]. Therefore, the total vanadium recovery depends on the vanadium
Details
Recovery of vanadium from alkaline leaching solution
2020-10-29 · recovery of vanadium from alkali leaching solutions. MATERIALS AND METHODS Materials The stone coal in this study is black and rock-like in appearance. This fuel with low caloriﬁc value can be treated as a polymetallic ore. It contains mostly quartz, illite, kaolinite, pyrite, and 18% organic matter with main chemical composition being 1% V 2 ...
Details
Bioleaching and biosorption behavior of vanadium
2021-8-5 · The recovery of vanadium (V) from stone coal by bioleaching is a promising method. The bioleaching experiments and the biosorption experiments were carried out, aiming to explore the adsorption characteristics of Bacillus mucilaginosus (B. mucilaginosus) on the surface of vanadium-bearing stone coal, and the related mechanisms have been investigated.
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Extraction of vanadium from stone coal by modified salt ...
2011-11-16 · high recovery of vanadium, this technology has been widely applied to treat stone coal in many places for over 40 years. However, the released exhaust gas containing ...
Details
The technology of extracting vanadium from
2011-9-1 · Stone coal is an important vanadium-bearing resource in China and the gross reserves of vanadium in stone coal accounts for more than 87% of the domestic reserves of vanadium.
Details
Mechanisms of Vanadium Recovery from Stone Coal by
2016-3-29 · In this report, the vanadium recovery mechanisms by novel BaCO3/CaO composite additive roasting and acid leaching technology, including the phase transformations and the vanadium leaching kinetics, were studied.
Details
Processes | Free Full-Text | Optimization of Oxidative ...
2020-11-25 · The recovery of vanadium by leaching from stone coal, vanadium titano-magnetite, and waste catalyst has been widely studied . Stone coal is a unique and abundant V resource in China with an estimated reserve of approximately 61.88 billion tons.
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Flotation recovery of vanadium from low-grade stone coal ...
The final vanadium concentrate with V2O5 grade of 1.88% and recovery rate of 76.58% is obtained by desliming–flotation process and 72.51% of the raw ore is rejected as tailings. The pre-concentration of vanadium from low-grade stone coal can increase V2O5 ...
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An environmentally-friendly technology of vanadium ...
2007-10-1 · Abstract A novel technology characterized by higher recovery of vanadium and which was environmentally-friendly was developed to recover vanadium from stone coal. Vanadium in stone coal could be leached by NaOH solution after roasting stone coal at 850 °C for 3 h. H2SO4, Mg(NO3)2 and ammonia were employed, respectively, in two steps to remove the impurities of
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Separation and recovery of vanadium from a sulfuric
stone coal contain more Al, Fe, P, and Si, and less Mo, Co, and Ni, which are extremely important for the practical application of amine extractants. Therefore, in the current investigation, a separation scheme for vanadium and common ions was developed by solvent extraction using trialkylamine for the recovery of vanadium from stone coal
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[PDF] Phase Transformation and Dissolution Behavior of ...
2020-6-9 · The selective leaching of vanadium and iron has been one of the main concerns in the field of vanadium recovery from stone coal, but the source of iron ions and their release characteristics were still unclear. In this work, the dissolution of pyrite and its roasted product, under conditions in accordance with the vanadium leaching process from stone coal by blank
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Geotechnical Considerations for Longwall Top Coal
2020-10-13 · Total seam recovery (excluding chain pillars) has been in the order of 85% to 95% with caving recovery of the top coal section between 75% and 85% and dilution between 8% and 10%. Under cavability classifications this corresponds to a “good to excellent cavability” rating (Jai, 2001). Recent modifications
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PRE-CONCENTRATION OF VANADIUM-BEARING MICA
2016-12-27 · grade of stone coal is improved from 0.7% to 0.8%, the cost of producing 1 t of V 2 O 5 will increase profits by 29% (Ning et al., 2010, Zhao et al., 2013). Hence, the vanadium pre-concentration of stone coal may improve vanadium recovery and reduce production costs. Furthermore, the vanadium pre-
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Calcified roasting-acid leaching process of vanadium
2014-4-15 · stone coal accounts for 87% of the total reserves (Zhang et al., 2011). However, the amount of low-grade vanadium-containing stone coal accounts for over 60% of the total, and the low-grade ore zone is often mixed in the high-grade ore (Wei et al., 2010). In many mining areas high-grade ores are mined, but
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中煤平朔集团有限公司 About Pingshuo
2019-8-29 · The advanced surface and underground combined coal mining method in Pingshuo Mining Area for raw coal production can highly improve the resources recovery. A “single bucket/shovel – truck” interval mining technique is applied to the surface coal mining production, the mechanization degree of the surface coal mining is 100 % and the coal recovery rate of
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Our Products

Crawler type Mobile Crushing Plant

Secondary Cone Crusher + Screen

HJ Series High Efficiency Jaw Crusher

HPT Cone Crusher

European Type Coarse Powder Mill

T130X Superfine Grinding Mill

stone coal recovery

Recovery of vanadium and carbon from low-grade stone

Recovery of sulfuric acid from a stone coal acid leaching ...

Phase transformations of vanadium recovery from

Mechanisms of Vanadium Recovery from Stone Coal by

Recovery of vanadium from alkaline leaching solution

Blank roasting and bioleaching of stone coal for vanadium ...

Vanadium Transitions during Roasting-Leaching Process

The technology of extracting vanadium from stone coal in ...

Extraction of vanadium from stone coal by modified salt ...

(PDF) Mechanisms of Vanadium Recovery from

Phase transformations of vanadium recovery from

Recovery of vanadium and carbon from low-grade stone

Mechanisms of Vanadium Recovery from Stone

Blank roasting and bioleaching of stone coal for vanadium ...

Vanadium Transitions during Roasting-Leaching Process

Recovery of vanadium from alkaline leaching solution

Bioleaching and biosorption behavior of vanadium

Extraction of vanadium from stone coal by modified salt ...

The technology of extracting vanadium from

Mechanisms of Vanadium Recovery from Stone Coal by

Processes | Free Full-Text | Optimization of Oxidative ...

Flotation recovery of vanadium from low-grade stone coal ...

An environmentally-friendly technology of vanadium ...

Separation and recovery of vanadium from a sulfuric

[PDF] Phase Transformation and Dissolution Behavior of ...

Geotechnical Considerations for Longwall Top Coal

PRE-CONCENTRATION OF VANADIUM-BEARING MICA

Calcified roasting-acid leaching process of vanadium

中煤平朔集团有限公司 About Pingshuo

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