Rhenium Recovery Molybdenum

How to Separate & Recover Molybdenum & Rhenium

05012021· In current technology, rhenium is recovered from the roaster gases produced during the oxidation of molybdenite concentrates The gases are scrubbed and the dilute rhenium solution passed through a strong base resin to adsorb the rhenium Elution is accomplished with NH4SCN; the NH4ReO4 is recovered by selective precipitation01052014· Rhenium is recovered during pyrometallurgical processing of molybdenum sulfide and copper sulfide ores; the traditional technology involves removing rhenium(VII) oxide, Re 2 O 7, from the sulfurous gas phase generated during multiple hearth roasting (in molybdenum processing) and smelting (in copper processing)Recovery of rhenium from molybdenum and copperRecovery of rhenium from molybdenum and copper concentrates during the Looping Sulfide Oxidation processRecovery of rhenium from molybdenum and copper

How to Separate & Recover Molybdenum & Rhenium

05012021· In current technology, rhenium is recovered from the roaster gases produced during the oxidation of molybdenite concentrates The gases are scrubbed and the dilute rhenium solution passed through a strong base resin to adsorb the rhenium Elution is accomplished with NH4SCN; the NH4ReO4 is recoveredRecovery of Molybdenum and Rhenium Using Selective Precipitation Method from Molybdenite Roasting Dust in Alkali Leaching Solution SungHo Joo1,2, YoungUk Kim1, JinGu Kang 2, HoSung Yoon , DongSu Kim3 and Shun Myung Shin1,2,+ 1Department of Resource Recycling, University of Science & Technology (UST), Daejon 305350, Korea 2Metal Recovery Group, Mineral ResourcesRecovery of Molybdenum and Rhenium Using Selective26102020· Selective Recovery of Molybdenum over Rhenium from Molybdenite Flue Dust Leaching Solution Using PC88A Extractant Ali EntezariZarandi 1, 2, *, Dariush Azizi 1,3,(PDF) Selective Recovery of Molybdenum over Rhenium

Recovery of rhenium from molybdenum and copper

Recovery of rhenium from molybdenum and copper concentrates during the Looping Sulfide Oxidation process Author links open overlay panel Joseph D Lessard Daniel G Gribbin Leonid NAn improvement in the recovery of molybdenum and rhenium values by roasting molybdenite which comprises preheating finely divided molybdenite concentrate and passing it downwardly through a vertically oriented reaction zone countercurrent to an upwardly traveling stream of high temperature oxygen, oxygen enriched air or oxygensulfur dioxide mixture heated by its passage through a roastingUSA Recovery of rhenium and molybdenumMolybdenum recovered in soluble form was 61 percent of the total molybdenum Rhenium extraction was 99 percent of the total rhenium From the above examples it is seen that the process of the invention is effective for the recovery of molybdenum and rhenium from their sulfide ores, including ores too poor for the recovery of the metals byProcess for the recovery of molybdenum and rhenium

Selectivity recovery of molybdenum(VI) from rhenium(VII

31052014· Amine functional group was grafted to obtain modified persimmon waste gel (NH2–CPT) with the focus of development of selective recovery of molybdenum from rhenium The adsorption behavior of the NH2–CPT gel for various metal ions at varying hydrochloric acid concentrations was studied It is found that the NH2–CPT exhibits high affinity for Mo(VI) and no affinity for Re(VII), Cu(II),Rhenium recovery Some of the byproduct molybdenite concentrates from copper mines contain small quantities (<010%) of rhenium Molybdenum roasters equipped to recover rhenium are one of the principal commercial sources for this rare metalMolybdenum Processing IMOARhenium Recovery Some molybdenite concentrates, a byproduct from copper ore, contain small amounts of rhenium (< 010%) The recovery of rhenium by molybdenum roaster is one of the main industrial sources of this rare metal Molybdenum Iron Smelting About 3040% of the industrial molybdenum oxide is processedHow Is Molybdenum Mined and Processed? | Refractory

Application of thermal analysis to the rhenium recovery

03032018· Rhenium production from copper and molybdenum sulphides involves the use of a pyrometallurgical process In traditional pyrometallurgy processes, gases emissions produce unacceptable air pollution and damage the extractive metallurgy equipment, leading to high production cost Due to the environmental disadvantages presented by the oxidizing roasting, in this paper theRecovery of Molybdenum and Rhenium Using Selective Precipitation Method from Molybdenite Roasting Dust in Alkali Leaching Solution SungHo Joo1,2, YoungUk Kim1, JinGu Kang 2, HoSung Yoon , DongSu Kim3 and Shun Myung Shin1,2,+ 1Department of Resource Recycling, University of Science & Technology (UST), Daejon 305350, Korea 2Metal Recovery Group, Mineral ResourcesRecovery of Molybdenum and Rhenium Using SelectiveAn improvement in the recovery of molybdenum and rhenium values by roasting molybdenite which comprises preheating finely divided molybdenite concentrate and passing it downwardly through a vertically oriented reaction zone countercurrent to an upwardly traveling stream of high temperature oxygen, oxygen enriched air or oxygensulfur dioxide mixture heated by its passage through a roastingUSA Recovery of rhenium and molybdenum

Recovery of Molybdenum and Rhenium Using Selective

The precipitation efficiency of molybdenum was higher than 99% in these conditions and molybdenum was observed to be precipitated as ammonium molybdate Contrary to the precipitating behavior of molybdenum, rhenium was precipitated very little in the given conditions, which suggested a possibility for the selective recovery of molybdenum and rheniumOSTIGOV Patent: RECOVERY OF RHENIUM AND MOLYBDENUM VALUES FROM SOLUTION RECOVERY OF RHENIUM AND MOLYBDENUM VALUES FROM SOLUTION Full Record; Other Related Research; Inventors: Litz, J E Publication Date: Sat Jan 01 00:00:00 EST 1972 Research Org: Originating Research Org not identified OSTI Identifier:RECOVERY OF RHENIUM AND MOLYBDENUM VALUESThe degree of oxidation of molybdenite was 999%, the extraction of rhenium solution > 99% P R I m m e R 2 The original pulp concentrate contained 14,1% molybdenum 0,040% rhenium Mass fraction of solid in the slurry 15%, the concentration of nitric acid, 15 g/l, sulfuric acid 200 g/l Pulp was treated at 150 o C for 2 h in the presence of oxygenMethod for the recovery of molybdenum and rhenium

Recovery and Separation of Molybdenum and Rhenium

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 rheniumRecovering the rhenium or molybdenum from sulfuric solutionsRecovering the rhenium or molybdenum from sulfuric03032018· Rhenium production from copper and molybdenum sulphides involves the use of a pyrometallurgical process In traditional pyrometallurgy processes, gases emissions produce unacceptable air pollution and damage the extractive metallurgy equipment, leading to high production cost Due to the environmental disadvantages presented by the oxidizing roasting, in this paper theApplication of thermal analysis to the rhenium recovery

Traditional roasting process of molybdenite

23072014· Molybdenum, rhenium recoveries were high, in which rhenium is about 95% recovery Since the roasting process more fully utilize the oxygen, of sulfur dioxide in the flue gas may be liquefied to produce a liquid sulfur dioxide, sulfurcontaining flue gas to avoid environmental pollutionMolybdenumRhenium Implantable Medical Devices Todd Leonhardt Rhenium Alloys, Inc N Ridgeville, Ohio USA Udayan Patel ICON Interventional Systems, Inc Atlanta, GA USA 9 th International Conference on Tungsten, Refractory & Hardmaterials Session T26 Medical Applications of Refractory Metals Thursday May 22, 2014MolybdenumRhenium Implantable Medical Devices