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recovery tellurium process

recovery tellurium process

Recovery of tellurium from high tellurium-bearing ...

2013-7-1  In order to recover tellurium selectively and keep other elements such as copper and selenium not entering the solution, the ideal thermodynamic conditions should fall in the stable regions of 6, 7 or 8 in Fig. 3. However these three regions are relatively narrow, and the practical production is

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Recovery of tellurium from high tellurium-bearing ...

Optimization of experimental conditions for selective leaching of tellurium. Abstract This paper focuses on the recovery of tellurium from high tellurium-bearing material with similar compositions to the anode slime of copper electrorefining, containing about 50% of copper and 34% of tellurium

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Efficient Electrochemical Recovery of Tellurium from

2021-1-4  The traditional process of Te recovery from spent electrolytes (Fig. 1) was neutralization and precipitation followed by filtration, alkaline leaching, purification, neutralization, incineration, alkali-dissolving, and electrowinning [ 16, 17, 18, 19 ].

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Electrochemical recovery of tellurium from metallurgical ...

above 300 ppm, whereas at lower concentrations EDRR is favoured. The purity of recovered tellurium is investigated with SEM–EDS (scanning electron microscope–energy dispersion spectroscopy). Based on the study, a new, combined two-stage electrochemical recovery process of tellurium from Doré slag PLS is proposed: EW followed by EDRR.

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Bacterial recovery and recycling of tellurium from ...

2018-8-16  Tellurium, however, is one of the scarcest elements in the earth’s crust, 22 and current production and recycling methods are inefficient and use toxic chemicals. 23 This study demonstrates an alternative, bacterially mediated tellurium recovery process. 24 Methods and results: We show that the hydrothermal vent microbe Pseudoalteromonas

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An environmental-friendly process for recovery of ...

2020-11-1  This process consists of two main procedures of atmospheric alkaline leaching and neutralizing precipitation, which achieves efficient recovery of tellurium from copper telluride in the form of TeO 2, without generating any solid or liquid wastes. Te is selectively dissolved into the solution, whereas Cu remains in the leaching residue during the leaching process, achieving one-step separation of

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Electrochemical recovery of tellurium from

2019-11-8  If tellurium is deposited as an alloy, the alloying element can be replaced with another tellurium ion which promotes tellurium recovery as Te is the most noble element in the solution (with the exception of silver) . Consequently, there exist two pathways for Te deposition, which occur simultaneously, leading to increased levels of Te at the surface: the redox replacement reaction of

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Selective Recovery of Tellurium from the Tellurium

2020-9-1  sodium carbonate slag, which is considered to be an important resource for tellurium recovery [13]. Tellurium separation and purification from tellurium-bearing sodium carbonate slag (TSCS) is a complex process involving many tellurium intermediates,

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Tellurium, its resourcefulness and recovery

2011-8-19  Because tellurium is the scarcest of all the byproducts and mainly recovered from copper sulfides, hydrometallurgical recovery of tellurium from electrolytic copper anode slimes is described. Although it looks similar to tin, tellurium is a metalloid chemical element which is used in a variety of industries, primarily in the form of an additive

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A novel process for extracting tellurium from the

2020-8-10  Tellurium in copper anode slime is often produced as tellurium slag because of the relative simplicity of the pyrometallurgical process. However, according to production data, the recovery rate of tellurium from the copper anode slime to tellurium slag is only about 30.0%.

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PROCESS FOR THE RECOVERY OF TELLURIUM FROM

process for the recovery of tellurium from minerals and/or acidic solutions Jun 29, 2009 A process and method for recovering elemental tellurium from minerals and acidic solutions using a reducing sugar as the reducing agent in order to reduce and precipitate tellurium as tellurium dioxide (TeO2) from which elemental tellurium may be recovered.

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Bacterial recovery and recycling of tellurium from ...

2018-8-16  Tellurium, however, is one of the scarcest elements in the earth’s crust, 22 and current production and recycling methods are inefficient and use toxic chemicals. 23 This study demonstrates an alternative, bacterially mediated tellurium recovery process. 24 Methods and results: We show that the hydrothermal vent microbe Pseudoalteromonas

Get Price

Electrochemical recovery of tellurium from metallurgical ...

above 300 ppm, whereas at lower concentrations EDRR is favoured. The purity of recovered tellurium is investigated with SEM–EDS (scanning electron microscope–energy dispersion spectroscopy). Based on the study, a new, combined two-stage electrochemical recovery process of tellurium from Doré slag PLS is proposed: EW followed by EDRR.

Get Price

Selective Recovery of Tellurium from the Tellurium

2020-9-1  sodium carbonate slag, which is considered to be an important resource for tellurium recovery [13]. Tellurium separation and purification from tellurium-bearing sodium carbonate slag (TSCS) is a complex process involving many tellurium intermediates,

Get Price

Bacterial recovery and recycling of tellurium from ...

2014-8-30  Concentration and conversion of tellurite to metallic tellurium is a critical step in the tellurium recovery process for production and recycling. There is only one group we are aware of that attempts to accomplish this using bacteria, where Pseudomonas mendocina was used. (Paknikar et al. 1997; Rajwade and Paknikar 2003).

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Tellurium Recovery from the Unique Tellurium Ores ...

Since the discovery of scattered elemental tellurium deposit in China, the development and utilization of this unique independent tellurium ores were studied. In this paper, firstly, the progresses on tellurium recovery process from the unique tellurium ores were summarized, and then, the experimental results on bioleaching in our lab were ...

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Selective and Efficient Electrochemical Recovery of

2018-9-13  Sustainable recovery of tellurium (Te) from large-scale wastewater is of great importance to offer stable supply of this strategic element. However, the concentration of tellurium is very low, and there is usually coexisting metallic ion of copper. In this study, a novel selective and efficient electrochemical extraction of Te and Cu from HCl solutions was first reported with stainless steel ...

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PROCESS FOR THE RECOVERY OF SELENIUM FROM

Tellurium can be recovered from the leaching residue from the oxidation portion through a separate recovery process, which is the subject of copending patent application Ser.

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赵 卓-安徽工业大学冶金工程学院 - AHUT

2016-9-15  An environmental-friendly process for recovery of tellurium and copper from copper telluride, Journal of Cleaner Production, 2020: 122723. [3] Shiwei Hea, Ruidong Xu, Li Sun, Youqi Fana, Zhuo Zhao* , Huan Liu, Huihong Lv.

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樊友奇-安徽工业大学冶金工程学院 - AHUT

2016-3-17  [10] Youqi Fan*, Yongxiang Yang, Yanping Xiao, et al, Recovery of Tellurium from High Tellurium-bearing Materials by Alkaline Pressure Leaching Process: Thermodynamic Evaluation and Experimental Study, Hydrometallurgy, 2013, 139: 95-99

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PROCESS FOR THE RECOVERY OF TELLURIUM FROM

process for the recovery of tellurium from minerals and/or acidic solutions Jun 29, 2009 A process and method for recovering elemental tellurium from minerals and acidic solutions using a reducing sugar as the reducing agent in order to reduce and precipitate tellurium as tellurium dioxide (TeO2) from which elemental tellurium may be recovered.

Get Price

US20100326840A1 - Process for the recovery of

Process for the recovery of tellurium from minerals and/or acidic solutions Download PDF Info Publication number US20100326840A1. US20100326840A1 US12/494,153 US49415309A US2010326840A1 US 20100326840 A1 US20100326840 A1 US 20100326840A1 US 49415309 A US49415309 A US 49415309A US 2010326840 A1 US2010326840 A1 US 2010326840A1

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Recovery of tellurium - Martin, Oliver C.

The objects of the invention include the provision of an efficient, economical and reliable process for recovering tellurium from sludges, slimes and slags or the like materials containing tellurium, and at the same time if desired, permitting the recovery of precious

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Selective Recovery of Tellurium from the Tellurium

2020-9-1  sodium carbonate slag, which is considered to be an important resource for tellurium recovery [13]. Tellurium separation and purification from tellurium-bearing sodium carbonate slag (TSCS) is a complex process involving many tellurium intermediates,

Get Price

Bacterial recovery and recycling of tellurium from ...

2014-8-30  Concentration and conversion of tellurite to metallic tellurium is a critical step in the tellurium recovery process for production and recycling. There is only one group we are aware of that attempts to accomplish this using bacteria, where Pseudomonas mendocina was used. (Paknikar et al. 1997; Rajwade and Paknikar 2003).

Get Price

Process for the recovery of tellurium from minerals and/or ...

2009-6-29  A process and method for recovering elemental tellurium from minerals and acidic solutions using a reducing sugar as the reducing agent in order to reduce and precipitate tellurium as tellurium dioxide (TeO2) from which elemental tellurium may be

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Comprehensive Recovery Technology for Te, Au, and Ag

2019-9-30  mainly extracted from tellurium-rich copper and lead smelting slag [6–9]. These processes are not only complex and time-consuming, but also result in great losses of tellurium during the recovery process. There are a large number of telluride-type gold deposits in Xiaoqinling, China, which content of tellurium is relatively high [10,11].

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Selective and Efficient Electrochemical Recovery of

2018-9-13  Sustainable recovery of tellurium (Te) from large-scale wastewater is of great importance to offer stable supply of this strategic element. However, the concentration of tellurium is very low, and there is usually coexisting metallic ion of copper. In this study, a novel selective and efficient electrochemical extraction of Te and Cu from HCl solutions was first reported with stainless steel ...

Get Price

PROCESS FOR THE RECOVERY OF SELENIUM FROM

Tellurium can be recovered from the leaching residue from the oxidation portion through a separate recovery process, which is the subject of copending patent application Ser.

Get Price

樊友奇-安徽工业大学冶金工程学院 - AHUT

2016-3-17  [10] Youqi Fan*, Yongxiang Yang, Yanping Xiao, et al, Recovery of Tellurium from High Tellurium-bearing Materials by Alkaline Pressure Leaching Process: Thermodynamic Evaluation and Experimental Study, Hydrometallurgy, 2013, 139: 95-99

Get Price

Bacterial recovery and recycling of tellurium from ...

2016-9-15  mediated tellurium recovery process. Methods and Results: We show that the hydrothermal vent microbe Pseudoalteromonas sp. strain EPR3 can convert tellurium from a wide variety of compounds, industrial sources and devices into metallic tellurium and a gaseous tellurium species.

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PROCESS FOR THE RECOVERY OF TELLURIUM FROM

process for the recovery of tellurium from minerals and/or acidic solutions Jun 29, 2009 A process and method for recovering elemental tellurium from minerals and acidic solutions using a reducing sugar as the reducing agent in order to reduce and precipitate tellurium as tellurium dioxide (TeO2) from which elemental tellurium may be recovered.

Get Price

Bacterial recovery and recycling of tellurium from ...

2018-8-16  Tellurium, however, is one of the scarcest elements in the earth’s crust, 22 and current production and recycling methods are inefficient and use toxic chemicals. 23 This study demonstrates an alternative, bacterially mediated tellurium recovery process. 24 Methods and results: We show that the hydrothermal vent microbe Pseudoalteromonas

Get Price

Recovery of tellurium - Martin, Oliver C.

The objects of the invention include the provision of an efficient, economical and reliable process for recovering tellurium from sludges, slimes and slags or the like materials containing tellurium, and at the same time if desired, permitting the recovery of precious

Get Price

Bacterial recovery and recycling of tellurium from ...

2014-8-30  Concentration and conversion of tellurite to metallic tellurium is a critical step in the tellurium recovery process for production and recycling. There is only one group we are aware of that attempts to accomplish this using bacteria, where Pseudomonas mendocina was used. (Paknikar et al. 1997; Rajwade and Paknikar 2003).

Get Price

Recovery of tellurium from high tellurium-bearing ...

Recovery of tellurium from high tellurium-bearing materials by alkaline pressure leaching process: Thermodynamic evolution and experimental study. Y Fan, Y Yang , Y Xiao, Z Zhao, Y Lei Research output : Contribution to journal › Article › Scientific › peer-review

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Recovery of Elemental Tellurium Nanoparticles by the ...

2016-1-19  This research focuses on the microbial recovery of elemental tellurium (Te 0) from aqueous streams containing soluble tellurium oxyanions, tellurate (Te VI) and tellurite (Te IV).An anaerobic mixed microbial culture occurring in methanogenic granular sludge was able to biocatalyze the reduction of both Te oxyanions to produce Te 0 nanoparticles (NPs) in sulfur-free medium.

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Recovery of Elemental Tellurium Nanoparticles by the ...

2016-1-19  This research focuses on the microbial recovery of elemental tellurium (Te0) from aqueous streams containing soluble tellurium oxyanions, tellurate (TeVI), and tellurite (TeIV). An anaerobic mixed microbial culture occurring in methanogenic granular sludge was able to biocatalyze the reduction of both Te oxyanions to produce Te0 nanoparticles (NPs) in sulfur-free medium.

Get Price

Tellurium, its resourcefulness and recovery

2011-8-19  Because tellurium is the scarcest of all the byproducts and mainly recovered from copper sulfides, hydrometallurgical recovery of tellurium from electrolytic copper anode slimes is described. Although it looks similar to tin, tellurium is a metalloid chemical element which is used in a variety of industries, primarily in the form of an additive

Get Price

Selective and Efficient Electrochemical Recovery of

2018-9-13  Sustainable recovery of tellurium (Te) from large-scale wastewater is of great importance to offer stable supply of this strategic element. However, the concentration of tellurium is very low, and there is usually coexisting metallic ion of copper. In this study, a novel selective and efficient electrochemical extraction of Te and Cu from HCl solutions was first reported with stainless steel ...

Get Price