Rhenium Extraction Results
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Rhenium Extraction Results

Liquid–liquid extraction of rhenium(VII) from an acidic ...

2015-10-1  The experimental results shown in Fig. 5 illustrate that the extraction efficiency of rhenium was approximately 46% at 0.2 molL − 1 and increased to more than 50% at 1.0 molL − 1.

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rhenium extraction results - brasserie-mino

Rhenium Extraction by Leaching in Ammonium Iodide Iodine. Pure rhenium is a refractory metal with a very high melting point of 3180°C. Extraction of rhenium from molybdenite concentrates and other primary sources has been studied for many years. Hydrometallurgical methods using Br2 HNO3 Ca(OH)2 NaOH or Na2CO3 have been investigated.

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Recovery of molybdenum and rhenium in scrub liquors of ...

2019-5-1  According to the results, recovery of rhenium from the scrub liquor is not practical unless molybdenum is removed in advance. The extraction of molybdenum was carried out using a D2EHPA-TBP system which resulted in up to 99.8% Mo extraction in a two-stage solvent extraction at

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Platinum and rhenium extraction from a spent refinery ...

2014-11-1  The present study evaluated the potential of Bacillus megaterium as a cyanogenic bacterium to produce cyanide for solubilization of platinum and rhenium from a spent refinery catalyst. Response surface methodology was applied to study the effects and interaction between two main effective parameters including initial glycine concentration and pulp density.

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Synergistic extraction of rhenium from in-situ leach ...

Download Citation Synergistic extraction of rhenium from in-situ leach uranium mining technology resin Synergistic extraction of rhenium with primary amines and tributylphosphate was studied.

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(PDF) Simulation of Rhenium Solvent Extraction from Leach ...

PDF In order to study the effect of the phase ratio on rhenium extraction, the number of stages and to reach steady state in the mixer-settler,... Find, read and cite all the research you need ...

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The method of extraction of rhenium

Closest to the described method according to the technical essence and the achieved result is a method of extraction of rhenium from leaching solutions of dust agglomeration of lead products using trialkylamine (TAA) in an organic solvent with the addition of alcohols followed by re-extraction solution of ammonia and regeneration of the ...

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Tsvetnye Metally Rhenium and platinum extraction from

2016-1-10  The degree of extraction of valuable components for the burnt and not burnt catalyst are practically equal (platinum – 87.2%, rhenium – 84.1% and platinum – 89.1%, rhenium – 87.5% accordingly), however for processing of the burnt catalysts are necessary more long time of their finding in a reactionary zone on 8-10 hours.

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Chemical Procedures for Rhenium Extraction from Geological ...

Abstract Rhenium‐Osmium geochronometry for samples with low Re and complex matrices require improved Re extraction methods. Here we investigate plausible controls

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Semi-industrial testings of sorption technology of rhenium ...

Semi-industrial testings of sorption technology of rhenium extraction from the waste waters of Balkash copper smelting plant metallurgical gas scrubbing January 2016 Tsvetnye Metally 2016(1):49-54

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Extraction of rhenium (7) by neutral organic phosphorus ...

Made available by U.S. Department of Energy Office of Scientific and Technical Information ...

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The method of extraction of rhenium

Closest to the described method according to the technical essence and the achieved result is a method of extraction of rhenium from leaching solutions of dust agglomeration of lead products using trialkylamine (TAA) in an organic solvent with the addition of alcohols followed by re-extraction solution of ammonia and regeneration of the ...

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Extraction of rhenium from uranium leach solutions of the ...

Results of rhenium leaching from mining samples mentioned by oxygen are direct signs of positive influence of an oxidizer on rhenium extraction. In this case grade of extraction reached 50–60 % and more without dependence from type of an applied reagent (including at use of formation water).

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Materials Free Full-Text Treatment of Rhenium ...

The experimental results indicate the high efficiency of rhenium and molybdenum removal (up to 86%) at pH 2.0 and of copper at pH range 3.0–5.0 (up to 68%). The equilibrium data were well fitted by the Langmuir adsorption isotherm equations, with a maximum adsorption capacity

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Improvement of the Solvent Extraction of Rhenium from ...

Continuous counter-current extraction of rhenium from roasting dust leach liquor was carried out using a mixer-settler extractor. Tributylphosphate was used as the extractant diluted in kerosene. The effects of the flow rates and extraction stages were investigated. The extraction efficiency was affected by the flow rates of the aqueous and organic phases, and its mechanism was qualitatively ...

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Method of extracting rhenium from platinum and rhenium ...

A known method of extraction of rhenium from sulfide concentrate, lies in its treatment with hydrogen peroxide or a mixture of hydrogen peroxide and ammonia solution [1]. This method is the closest to the technical essence and the achieved result to the claimed and accepted as a prototype. The disadvantages of the method.

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Separation of rhenium by extraction with crown ethers and ...

Abstract The extraction behavior of perrhenate with crown ethers was studied and methods for the separation and determination of rhenium were developed. The distribution ratio of perrhenate with dicyclohexano-18-crown-6 (DC18C6) increases with increases in the dielectric constant of organic solvents and in the potassium ion concentration of aqueous solution.

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Extraction of Molybdenum and Rhenium from Electro ...

2010-7-16  Extraction of Molybdenum and Rhenium from Electro-oxidation Lixivium of Molybdenite Cao Zhan-fang 1,2 Zhong Hong 1 Jiang Tao 2 Qiu Zhao-hui 1 Liu Guang-yi 1 1.School of Chemistry and Chemical Engineering,Central South University,Changsha 410083,Hunan,China;2.School of Minerals Processing and Bioengineering,Central South University,Changsha 410083,Hunan,China

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Processing of rhenium-bearing molybdenite concentrates ...

Rhenium extraction from solution is 95.3%, and throughout recovery of molybdenite concentrate is 79%. The offered technology allows the processing of molybdenite concentrates with wide variation of compositions and effective change of the process modes depending on raw material structure, which is important for organization of low-scale ...

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Chloroform Aided Extraction Spectrophotometric ...

The experimental results showed that in a concentration range from 0.5-8 mg/L, the absorbance behavior of the rhenium thiocyanate complex is followed to the Beer-Lambert law. 下载App查看全文 下载全文 更多

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Materials Free Full-Text Treatment of Rhenium ...

The experimental results indicate the high efficiency of rhenium and molybdenum removal (up to 86%) at pH 2.0 and of copper at pH range 3.0–5.0 (up to 68%). The equilibrium data were well fitted by the Langmuir adsorption isotherm equations, with a maximum adsorption capacity

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Method of extracting rhenium from platinum and rhenium ...

A known method of extraction of rhenium from sulfide concentrate, lies in its treatment with hydrogen peroxide or a mixture of hydrogen peroxide and ammonia solution [1]. This method is the closest to the technical essence and the achieved result to the claimed and accepted as a prototype. The disadvantages of the method.

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Solvent extraction of rhenium from molybdenum in alkaline ...

The results show that the mixture of 20% triotylamine and 30% tributyl phosphate diluted kerosene oil is selective extractant of rhenium with respect to molybdenum. It extracted molybdenum with extraction efficiency of 1.7%, while rhenium was extracted with efficiency of 96.8%, and separation coefficient β Re/Mo is relatively good ...

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Review of rhenium extraction and recycling technologies ...

Review of rhenium extraction and recycling technologies from primary and secondary resources Title: Review of rhenium extraction and recycling technologies from primary and secondary resources

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Behavior of Extraction, Stripping, and Separation ...

The behavior of extraction, stripping and separation possibilities of rhenium and molybdenum from molybdenite roasting dust leaching solutions using tri-otyl-amine (TOA) as an extractant has been investigated. From the results, 5 vol% TOA dissolved in kerosene is found to be selective for extraction of rhenium as compared with molybdenum.

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Extraction of Molybdenum and Rhenium from Electro ...

2010-7-16  Extraction of Molybdenum and Rhenium from Electro-oxidation Lixivium of Molybdenite Cao Zhan-fang 1,2 Zhong Hong 1 Jiang Tao 2 Qiu Zhao-hui 1 Liu Guang-yi 1 1.School of Chemistry and Chemical Engineering,Central South University,Changsha 410083,Hunan,China;2.School of Minerals Processing and Bioengineering,Central South University,Changsha 410083,Hunan,China

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Rhenium Lipmann Walton Co Ltd

Rhenium Facts Rhenium is a new and special industrial metal. It is rare in metallurgy, difficult to extract, has a high cost of extraction and is prized by society for the properties it brings to some high-tech products. It has some similar properties to the Platinum

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Processing of rhenium-bearing molybdenite concentrates ...

Rhenium extraction from solution is 95.3%, and throughout recovery of molybdenite concentrate is 79%. The offered technology allows the processing of molybdenite concentrates with wide variation of compositions and effective change of the process modes depending on raw material structure, which is important for organization of low-scale ...

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EXTRACTION AGENT FOR PRECIOUS METALS AND RHENIUM

EXTRACTION AGENT FOR PRECIOUS METALS AND RHENIUM, AND EXTRACTION METHOD FOR PRECIOUS METALS AND RHENIUM USING SAME. 2960349 - EP14785986A1 - EPO Application Apr 08, 2014 - Publication Dec 30, 2015 Masahiro GOTO Fukiko KUBOTA Yuzo BABA. Abstract.

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Mybatis注解@Results、@Result、@ResultMap ...

2019-8-21  MyBatis中使用@Results注解来映射查询结果集到实体类属性。(1)@Results的基本用法。当数据库字段名与实体类对应的属性名不一致时,可以使用@Results映射来将其对应起来。column为数据库字段名,porperty为实体类属性名,jdbcType为数据库 ...

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