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recovery rhenium technology

Review of technologies for rhenium recovery from mineral

01/09/2011· Recovery of rhenium from the wash sulfuric acid is carried out by solvent extraction technology, shown in Fig. 1 (Abisheva and Zagorodnyaya, 2002, Zagorodnyaya et al., 1997). The solution of trialkylamine (TAA) in kerosene with addition of the higher spirit used as the extraction agent.

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Technology for Recovery of Rhenium from Waste

In the technology of flash-smelting copper concentrates rhenium becomes distilled in the form of oxides and with furnace off-gasses is sent to sulphuric acid plant. In the washing and cooling installation rhenium becomes transferred to the weak sulphuric acid, which contains 3.5-10 % H2SO4, 0.02-0.07 g/dm3 Re, 0.5-1.5 g/dm3 As. The real breakthrough in the investigations of rhenium recovery

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Selective recovery of Rhenium from industrial leach

01/04/2020· Due to the reducibility of solutions, the recovery rhenium method using the reduction sulfurization by sodium thiosulfate was developed. In the sulfide precipitation research, the temperature, oxidation–reduction potential (ORP) of the solution, reaction time impacts the amount of Re precipitated.

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The improvement of rhenium recovery technology from W

05/12/2018· It is considered, that the fundamentals of an improved technology of rhenium recovery in the form of perrhenic acid from binary W-Re alloys. It is shown the desirability of avoiding the precipitation of metal in the form of potassium perrhenate. A basic technological scheme of the Re recovery process is proposed. It includes anodic dissolution of W-Re alloys, precipitation of calcium tungstate

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Development of the technology for the recovery of

Notably, KGHM's Glogow smelting facility utilized ion exchange technology for the recovery of aqueous rhenium from copper concentrate smelter flue gas [26]. Similar to the Kennecott process, the

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The improvement of rhenium recovery technology from

05/12/2018· It is considered, that the fundamentals of an improved technology of rhenium recovery in the form of perrhenic acid from binary W-Re alloys. It is shown the desirability of avoiding the precipitation of metal in the form of potassium perrhenate. A basic technological scheme of the Re recovery process is proposed. It includes anodic dissolution of W-Re alloys, precipitation of calcium tungstate

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(PDF) The improvement of rhenium recovery technology

PDF The lack of rhenium raw materials sources on the territory of Russia leads to the necessity of this valuable metal recovery from wastes and Find, read and cite all the research you need

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PAPER OPEN ACCESS The improvement of rhenium recovery

The improvement of rhenium recovery technology from W-Re alloys O G Kuznetsova, A M Levin, M A Sevostyanov and A O Bolshih A.A. Baikov Institute of Metallurgy and Materials Science of Russian Academy of Science, 49 Leninsky pr., Moscow, Russian Federation Abstract. The lack of rhenium raw materials sources on the territory of Russia leads to the necessity of this valuable metal recovery from

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Recovery of Rhenium from Superalloy Scrap SBIR.gov

Very little rhenium is actually processed and isolated each year as compared to the millions of tons of copper and millions of pounds of molybdenum that are extracted from the same copper deposits. Opportunities exist for enhancing rhenium yield through technological improvements in discrete steps in the recovery process. Due to rheniums

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Recovering platinum/rhenium from spent hydrocarbon

As rhenium values have increased, recovery techniques from spent catalysts have not kept pace. However, most users look to their refiners for increased recovery yields. Finally, there is a practical, cost-effective breakthrough that addresses this issue: after years of research, Sabin scientists have developed a unique method of recovering rhenium from hydrocarbon processing catalysts

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Rhenium: a hidden asset DigitalRefining

Recovering rhenium While all precious metals refiners are capable of recovering the PGMs from spent process catalysts, until now refiners have been unable to recover all of their Re content. There are many reasons for this, but the main reason concerns the inability to separate the remaining Re with a practical process for its recovery and subsequent refining.

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Rhenium

Depending on the price of Rhenium at any given point, the effluent discharged by reforming plants, containing nearly. 70 ppm of rhenium; 13 ppm Platinum, is interesting to treat economically. ELSA has developed, thanks to its technology, a recovery of Rhenium and Platinum to 92% which is fundamental in making an recovery operation economically

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Recovery Rhenium Title Henan Caesar Heavy Machinery

Recovery Rhenium Title. We are a large-scale manufacturer specializing in producing various mining machines including different types of sand and gravel equipment, milling equipment, mineral processing equipment and building materials equipment. And they are mainly used to crush coarse minerals like gold and copper ore, metals like steel and iron, glass, coal, asphalt, gravel, concrete, etc

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Recovery of Molybdenum & Rhenium From Molybdenite

Table of ContentsElectrooxidation Theory & PrinciplesEquipment and Operating ProcedureBipolar Cell DevelopmentLarge-Scale Electrooxidation TestsMolybdenum and Rhenium RecoveryConclusions As part of the goal to maximize minerals and metals recovery from primary domestic resources, design factors associated with minimizing current leakage in bipolar cell configurations were studied by the

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Semi-industrial testings of sorption technology of

The technology was tested in semi-industrial scale on the specially assembled setting. There was made a definition that 20.8 kg of rhenium is sorbed for 1 m3 of anionite A170 from the solutions, where rhenium concentration varied from 6.2 to 10 mg/dm3. At the same time, rhenium is desorbed by 2–3 sp. vol. of ammonia. Technical ammonium

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