process recovery rhenium

Electrochemical recovery of rhenium from W ... - SpringerLink

The main characteristics of the electrodialysis conversion of the synthesized potassium perrhenate into perrhenic acid with a concentration of 591 g/L electrolyte are determined. A technological scheme is proposed for the recovery of rhenium from the wastes of a W–Re alloy in the form of perrhenic acid.

Recovery of Rhenium and Molybdenum from Molybdenite ...

Recovery of Rhenium and Molybdenum from Molybdenite Roasting Dust Leaching Solution by Ion Exchange Resins Sung-Ho Joo 1,2, Young-Uk Kim1, Jin-Gu Kang2, J. Rajesh Kumar, Ho-Sung Yoon 2, P. K. Parhi and Shun Myung Shin1,2,+ 1Department of Resource Recycling, University of Science & Technology (UST), Daejeon 305-350, Korea 2Extractive Metallurgy Department, Mineral Resources …

US4321089A - Process for the recovery of molybdenum and ...

A process for the recovery of molybdenum and rhenium from their sulfide ores which comprises subjecting the ores to microwave energy in the presence of oxygen to selectively heat the sulfides to convert them to oxides, and recovering the formed oxides. Alternatively, the sulfides in the ore are selectively heated with microwave energy in the presence of chlorine to convert them to the ...

Process for rhenium recovery - Nihon Kogyo Kabushiki Kaisha

Feb 25, 1986· 1. A process for rhenium recovery by the use of an anion exchange resin, characterized in that rhenium is eluted from the rhenium-adsorbed anion exchange resin with a hydrochloric acid solution containing a metal chloride selected from the group consisting of …

Extractive metallurgy of rhenium: a review | SpringerLink

Abstract. 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 primary rhenium is produced is dependent on the commodity of which it is a byproduct, e.g., copper, molybdenum, uranium, etc.

Recovery of rhenium from molybdenite calcine by a resin-in ...

1. Introduction. The recovery of rhenium from molybdenite calcine has both important environmental and economic values. Rhenium is a less common metal with special properties and is widely used in the petrochemical industry, aviation, electron, medicine and metallurgy etc.

Selective Rhenium Recovery from Spent Reforming Catalysts

The conventional rhenium recovery process from spent reforming catalysts. Rhenium recovery from the leaching solution is accomplished by ion exchange.6 The spent-catalyst hydrometallurgical processing comprises several unit operations aimed at the recovery of the various components of the spent catalyst, alumina, platinum, and rhenium. ...

Umicore - Rhenium

They detected rhenium spectroscopically in platinum ores and in the minerals columbite, gadolinite and molybdenite. In 1928, Noddack and Berg were able to extract 1 gram of rhenium from 660 kilograms of molybdenite. Today, rhenium is obtained as a by-product of refining molybdenum and copper.

Recovery of rhenium from molybdenite calcine by ... - DeepDyve

Aug 01, 2006· Recovery of rhenium from molybdenite calcine by a resin-in-pulp process Recovery of rhenium from molybdenite calcine by a resin-in-pulp process Lan, X.; Liang, S.; Song, Y. 2006-08-01 00:00:00 This paper introduces a resin-in-pulp (RIP) hydrometallurgical process, which is widely used in gold leaching and recovery industry, to recover rhenium effectively and economically from …

Molybdenum Processing - imoa.info

Rhenium recovery. Some of the by-product molybdenite concentrates from copper mines contain small quantities (<0.10%) of rhenium. Molybdenum roasters equipped to recover rhenium are one of the principal commercial sources for this rare metal.

Recovery of Molybdenum & Rhenium From Molybdenite …

Major losses of molybdenum and rhenium occur during flotation in the cleaner flotation sequences; therefore, a process that would accept lower grade, partially cleaned molybdenite flotation concentrates that contained some copper could significantly improve overall molybdenum-rhenium recovery.

RHENIUM RECOVERY FROM SUPERALLOYS AND ASSOCIATED METHODS ...

Jun 02, 2011· A method of recovery and refining of rhenium after oxidizing alloy scrap is discussed in an article "Recovery And Refining Of Rhenium, Tungsten And Molybdenum From W—Re, Mo—Re And Other Alloy Scraps" by B. Heshmatpour et. al. J., The Less-Common Metals, 86, pages 121-128 (1982), which is incorporated herein for reference.

Leaching kinetics, separation, and recovery of rhenium and ...

Apr 01, 2019· To optimise the leaching process the concentration of aqua-regia solution, leaching time, solid-to-liquid ratio, stirring speed, and sonication time have been investigated as experimental factors that can influence the recovery of rhenium from superalloy CMSX-4.

The improvement of rhenium recovery technology from W-Re ...

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 …

recovery of platinum and rhenium - Cheresources.com

processes used for the recovery of nobel metals from spent catalysts would be worthy and considerable. There are some methods for recovery of platinum, rhenium and other nobel metals from catalysts [1-10] .One effective method for recovery of Pt and Re from spent catalysts containing these metals or from solutions containing the

Recovery and separation of molybdenum and rhenium from a ...

Recovery and separation of molybdenum and rhenium from a process solution was accomplished by a technique developed by the Federal Bureau of Mines involving a combined solvent extraction and activated carbon adsorption procedure.

Rhenium - Wikipedia

Rhenium in the form of rhenium-platinum alloy is used as catalyst for catalytic reforming, which is a chemical process to convert petroleum refinery naphthas with low octane ratings into high-octane liquid products. Worldwide, 30% of catalysts used for this process contain rhenium.

Recovery process - PDF Free Download

4572823 Process for rhenium recovery Streamlining the Outpatient Recovery Process PDF Reader; Full Text; PATENTS GRANTED In the Metal Finishing Field Printed copies of patents are furnished by the Patent and Trademark Office for $3.00 each. Address orders to: Commissioner of Patents and Trademarks, Washington, D.C. 2023 1.

INTERNATIONAL SYMPOSIUM ON RHENIUM AND RHENIUM …

Developed methods are used on a commercial level at industrial enterprises of Russia and CIS. A process for selectively recovering rhenium from exhausted Pt-Re catalysts includes next steps: roasting, acid- or alkali-assisted leaching, ion-exchange recovery or rhenium from the solution and preparing high-purity ammonium perrhenate (99.99%).

MSP-REFRAM Final Conference Rhenium production

USA is the second rhenium producer that acquires rhenium as a by-product of molybdenite concentrate roasting from porphyry-type of Cu-Mo deposits. Sierrita, Freeport McMoRan Copper&Gold in Arizona is the only roasting plant for rhenium recovery in the USA.

Recovery and Separation of Molybdenum and Rhenium from a ...

Recovery and separation of molybdenum and rhenium from a process solution was accomplished by a technique developed by the federal Bureau of Mines involving a combined solvent extraction and activated carbon adsorption procedure. The processing sequence required treatment of …

Molybdenum Processing

Rhenium recovery. Some of the by-product molybdenite concentrates from copper mines contain small quantities (<0.10%) of rhenium. Molybdenum roasters equipped to recover rhenium are one of the principal commercial sources for this rare metal.

Recovery of Platinum and Rhenium from Waste-spent ...

Mar 31, 2016· Recovery of Platinum and Rhenium from Waste-spent Petroleum Catalyst ... and the entire process is short and simple, with less reagent, which has good economic and social benefits. ... and rhenium ...

Novel Aqueous Processing of the Reverted Turbine-Blade ...

The extraction of rhenium increased from 9% to 98% with an increase in extractant concentration from 0.005 to 0.08 mol L –1 in the organic phase. On a metal-to-metal basis, the recovery value of 93% rhenium as NH 4 ReO 4 (9.5 g L –1 Re in the solution) demonstrated the potential of the present process.

Recovery of rhenium from molybdenite calcine by a resin-in ...

Download Citation on ResearchGate | Recovery of rhenium from molybdenite calcine by a resin-in-pulp process | This paper introduces a resin-in-pulp (RIP) hydrometallurgical process, which is ...

Method for obtaining metallic rhenium by reduction of ...

Exercise patience until the completion of the recovery process. The recovery process is determined by the termination of the vapor emissions of ammonia in the bubbler in the form of a mist. Then provide additional exposure for 15 minutes Then cooled powder for 4 hours. After complete cooling, the rhenium powder is weighed and determine weight loss.

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 and the irradiation time was 6 h, the rhenium recovery was 90–95% and the rhenium recovery …

Rhenium: A Hidden Asset - Sabin Metal Corporation

Jun 01, 2013· If pyrometallurgical recovery is used, the contractual return to the customer may be made on the actual content of Re in the catalyst. Therefore, the most accurate methods of rhenium analysis may be used and do not need to be specified. If, however, the recovery method is digestion, only the soluble portion of the rhenium counts.

Catalytic reforming - Wikipedia

Catalytic reforming is a chemical process used to convert petroleum refinery naphthas distilled from crude oil (typically having low octane ratings) into high-octane liquid products called reformates, which are premium blending stocks for high-octane gasoline.The process converts low-octane linear hydrocarbons (paraffins) into branched alkanes (isoparaffins) and cyclic naphthenes, which are ...

Recovery and Separation of Molybdenum and Rhenium from a ...

Recovery and separation of molybdenum and rhenium from a process solution was accomplished by a technique developed by the Federal Bureau of Mines involving a combined solvent extraction and activated carbon adsorption procedure. The processing sequence required treatment of the solution with SO2 to reduce the chlorate ion and adjust the pH prior to solvent extraction of molybdenum and rhenium ...

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