Review of Methods for Obtaining Rhenium from Man-Made …

The recovery of rhenium from spent alloys and catalysts comprises a complex process involving pyrometallurgical and hydrometallurgical methods. This article allows for a …

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(PDF) Review of rhenium extraction and recycling …

The article summarizes the research results on rhenium recovery with AM-p-2 strong-base macroporous styrene-divinyl benzene anion exchange resin with dimethylammonium functional groups from the ...

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Recovery of rhenium from aqueous mixed metal solutions by …

Selective precipitation recovery of rhenium from aqueous solutions containing a coexisting metal (molybdenum, tungsten, or aluminum) by means of UV–visible light irradiation …

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Freeport pressure oxidation rhenium recovery process …

After elution, the rhenium-rich stream is sent for rhenium recovery to produce a pure rhenium product, and a rhenium lean eluate solution for optional reuse in the circuit ( Waterman et al., …

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Review: Rhenium and its smelting and recycling technologies

Recovery of rhenium from molybdenum and copper concentrates during the looping sulfide oxidation process. Int J Refract Met Hard Mater 2014; 44: 1–6. Crossref

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Recovery of rhenium from a molybdenite roaster fume as high …

Rhenium (Re) was recovered as high purity ammonium perrhenate (APR) from a scrub liquor produced by a pilot plant treating 2000 m 3 /h of a fume discharged from a …

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Review of rhenium extraction and recycling technologies from …

The main challenges in rhenium extraction and recycling are the enrichment of rhenium in the production and the collection and classification of spent rhenium scrap, to …

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Leaching kinetics, separation, and recovery of rhenium and …

The process flow chart in Fig. 10 summarises the separation and recovery of the rhenium value from CMSX-4 superalloy scraps, and Table 2 lists the solution concentration …

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Recovery of rhenium from molybdenum and copper concentrates during …

A new technology platform called Looping Sulfide Oxidation (LSO) has been proposed to produce molybdenum and copper using alternative process chemistries. A …

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Recovery of Molybdenum and Rhenium from Mo Concentrate

Molybdenum and Rhenium Recovery. Figure 8 details the process sequence employed for recovering molybdenum and rhenium from the electrooxidation reaction pulp. …

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TW201734216A

A process for the recovery of rhenium and at least one platinum group element from aluminium oxide-based catalyst support material, rhenium- and at least one platinum group element …

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Process for the recovery of rhenium and molybdenum values from

PROCESS FOR THE RECOVERY OF MOLYBDENUM AND RHENIUM FROM MOLYBDENITE WHICH COMPRISES: OXIDIZING THE MOLYBDENUM IN THE MOLYBDENITE …

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The H.C. Starck process for superalloy recycling …

Lan et al. have proposed a novel process for the recovery of rhenium-containing flue dusts, using an application commonly used in gold hydrometallurgy, known as the "resin-in-pulp" process ...

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Extractive metallurgy of rhenium: a review

The original Kennecott Process for the recovery of rhenium involves the previously mentioned scrubbing process, in which the exhaust gases of the molybdenum roasting circuit are washed …

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Leaching kinetics, separation, and recovery of rhenium and …

A study to leach and recycle rhenium from CMSX-4, a second generation ultrahigh-strength single crystal nickel-based superalloy, containing 3% rhenium is presented. …

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—The Melaven process (Melaven and Bacon, 1947).

A variety of processing technologies exist for recovery from both primary and secondary sources of rhenium. Currently, there are no known primary rhenium deposits; thus, the method in which ...

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Review of Methods for Obtaining Rhenium from Man-Made …

Means, in which up to 97 and 87% of rhenium is extracted from the crushed and non-crushed catalyst, respectively, proposed by T. N. Angelidis to simplify the conventional …

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Selective recovery of Rhenium from industrial leach solutions by

The results showed that the solution contained 84.44 wt% of the rhenium present in the whole process, and the copper/arsenic/rhenium in solution is in the form of the Cu +, HAsO …

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Application of thermal analysis to the rhenium recovery process …

A variety of processing technologies exist for recovery from both primary and secondary sources of rhenium. Currently, there are no known primary rhenium deposits; thus, the method in which …

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US4572823A

A process for rhenium recovery by the use of an anion exchange resin comprises eluting rhenium from the rhenium-adsorbed anion exchange resin with a hydrochloric acid solution containing …

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Recovery of rhenium, a strategic metal, from copper smelting …

The CH 3 COOK activated hierarchical biochar has the high potency for highly efficient and selective recovery of perrhenate from the acidic solution generated by the copper …

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US8956582B2

Currently, processes for recovery of rhenium from alloys and mixtures thereof containing nickel and cobalt involve electro-dissolution and hydrochloric acid or sulfuric acid leaching of the...

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Extractive Metallurgy of Rhenium: A Review

In addition, focus on the recovery of rhenium from secondary sources, such as alloy scraps and catalysts, is continually growing. This paper presents a review of both primary and secondary...

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Recovery of rhenium from molybdenum and copper concentrates during …

The Re 2 O 7 is then recovered from the gas phase by a wet scrubbing process whereby the rhenium is eventually precipitated as ammonium perrhenate. The recovery of …

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US8956582B2

There is provided a hydrometallurgical process of recovering rhenium values from mixtures thereof with other metal values in which the rhenium values constitute a minority amount, for …

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Extractive metallurgy of rhenium: a review | Mining, Metallurgy

A variety of processing technologies exist for recovery from both primary and secondary sources of rhenium. Currently, there are no known primary rhenium deposits; thus, …

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US3739057A

Process for the recovery of rhenium and molybdenum values from molybdenite concentrate Download PDF Info Publication number US3739057A. US3739057A US00161111A …

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Recent advances of rhenium separation and enrichment in China

The new RIP rhenium recovery process featured higher selectivity, short process, less costs and environmental compact compared to the typical process. Dai et al. developed a …

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Recovery of rhenium from aqueous mixed metal solutions by …

Rhenium was also recovered efficiently and selectively from rhenium–tungsten solutions (initial concentration 10.4 mM for each metal): when the pH ranged from 7.0 to 12.0 …

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Rhenium Recovery and Recycling Technologies

Traditionally obtained as a by-product of molybdenum, copper, and uranium processing, rhenium recovery has increasingly focused on refining extraction and recycling processes to ensure …

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How to Separate & Recover Molybdenum & Rhenium

Molybdenum and rhenium can be extracted and separated from an electrooxidation pregnant solution by a combined process utilizing solvent extraction, carbon adsorption, and crystallization. Byproduct recovery of …

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Rhenium recovery from roasting leachate of molybdenum

Developing the recovery technology of rhenium under the background of high molybdenum is of great significance to the recovery of rhenium resources in the leaching …

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Hydrometallurgical separation of Mo and Re from Rhenium …

Then, the rhenium loaded on N263 was stripped using sodium thiocyanate, achieving the secondary separation of molybdenum and rhenium, with efficient rhenium recovery. This …

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Recovery of rhenium from tungsten‑rhenium wire by alkali fusion …

Rhenium exists mainly in the form of ReS 2-associated molybdenum and copper sulfide ore and is oxidized to Re 2 O 7 in oxidizing, roasting or melting procedures, volatilized …

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