+86 15516432285

rhenium uranium recovery

How to Recover Rhenium from Uranium Leach Liquor

2020-12-27  The discovery of rhenium on the ion exchange resin used at the uranium in-situ leach operations at Palangana (Texas) led to a laboratory study on the possible methods of recovery. Rhenium, present in small amounts in the ammonium carbonate leach liquors as the perrhenate anion, ReO4-, concentrated on the anion exchange resin, which was a factor of ten

More

Sorption of rhenium and uranium by strong base

2013-1-1  Highlights Rhenium is sorbed with the anion exchange resin Ambersep A920U of all salt forms. Rhenium is sorbed from the solutions of any anion composition. Uranium is sorbed only from sulfate, carbonate and hydrocarbonate solutions. Different sorption abilities of the metals were explained by their ion state.

More

Recovery of rhenium(VII) from synthetic leaching

Recovery of rhenium(VII) from synthetic leaching solutions of uranium ore using ionic liquid modified cellulose microsphere adsorbents Author links open overlay panel Zhen Dong a Di Wen a Manman Zhang a Kangjun Xie a Rong Hua b Long Zhao a

More

Recovery of rhenium(VII) from synthetic leaching

2020-11-1  The recovery of Re(VII) in the column was high at BV 28.4; the average concentration of Re(VII) in the leaching solution was up to 12.085 mg/L that is 120-folds to inlet Re concentration. The results indicated that ILFC-NO 3 was an effective adsorbent for recovery trace Re(VII) from uranium ore. 3.4. Adsorption mechanism

More

Review of technologies for rhenium recovery from

2011-9-1  Research highlights The base mineral raw materials for recovery of rhenium in Kazakhstan are by-products of copper, lead and uranium production. In pyrometallurgical processing of copper concentrates, Re is distributed between dusts, slime and washes sulfuric acid. Dusts are sent to lead smelters, and rhenium is recovered from wash sulfuric acid of

More

(PDF) Extractive Metallurgy of Rhenium: A Review

Recovery from Uranium Hy drometallurg y ... In addition, focus on the recovery of rhenium from secondary sources, such as alloy scraps and catalysts, is continually growing. This

More

Recovery of Molybdenum and Rhenium Using Selective ...

The base mineral raw materials for recovery of rhenium are solid and liquid by-products of molybdenum, copper, lead and uranium production. Therefore, the recovery of rhenium from them is usually carried out by a hydrometallurgical process.3­6) The hydrometallurgical process for the produc-tion of rhenium from the related by-products can be ...

More

Review of rhenium extraction and recycling

2021-1-15  In order to increase rhenium recovery in this process, some additives are used in the solution to oxidize the low valence rhenium oxide in the flue gas when using water scrubbing for pyrometallurgical rhenium streams (Zhang and Zhao, 2007). The solution also contains ~ 50 g/L H 2 SO 4 after washing the gases. Part of rhenium remains in the ...

More

Extractive metallurgy of rhenium: a review SpringerLink

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. In addition, focus on the recovery of rhenium from

More

Uranium 2020: Resources, Production and Demand

2020-12-22  Potential recovery of rare earth elements, scandium and rhenium from uranium sandstone deposits (ISL mining)..... 51 1.3. In situ bioleaching of sandstone-type uranium deposits..... 53 1.4. Innovative uranium mining technologies: Jet boring at the Cigar Lake ore deposit ....59 1.5. Mini-reagent technology in ISL mining of sandstone -type ...

More

Research Situation on Recovery of Rhenium From

The properties,distribution of rhenium and existing forms of rhenium in sandstone-type uranium deposits are introduced.The analysis and producing methods of rhenium products are reviewed.The characteristics of dissolving of ore samples containing rhenium,separation and concentration of rhenium,and determination of rhenium are comparative analysised.It is

More

Rhenium recovery - Asarco LLC -

2015-3-24  Rhenium has also been known to have been recovered from uranium leach solutions. ... During the rhenium recovery process according to an embodiment of method 100, neither the feedstock 12 of raffinate 16 entering the column, nor the discharge solution leaving the column, were sampled for rhenium.

More

Rhenium Recovery By Solvent Extraction and ...

A procedure developed by the US Bureau of Mines to recover rhenium in the form of electrolytic flakes by electrowinning the metal from a solvent-extraction strip solution is described. The recovered rhenium contains only about 0.1 % Mo and spectrograph traces of other impurities, such as copper, aluminum, calcium, chromium, iron, platinum, and silicon. The uses and properties of rhenium

More

Extractive metallurgy of rhenium: a review SpringerLink

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. In addition, focus on the recovery of rhenium from

More

Selective recovery of Rhenium from industrial leach ...

To recover rhenium from the precipitate, the separation of perrhenate ions from industrial leach solutions using synergistic solvent extraction was investigated. For the synergistic extraction system of Alamine 336 and TBP, Alamine 336 is the primary compound that combines with the anions in the leach solution.

More

Rhenium chemical element Britannica

Rhenium does not occur free in nature or as a compound in any distinct mineral; instead it is widely distributed in small amounts in other minerals, usually in concentrations averaging about 0.001 parts per million. Chile is the world leader in rhenium recovery, followed by the United States, Poland, Uzbekistan, and Kazakhstan.. Rhenium occurs up to about 20 parts per million

More

Adsorption and separation of rhenium(VII) using N ...

Zhen Dong, Di Wen, Manman Zhang, Kangjun Xie, Rong Hua, Long Zhao, Recovery of rhenium(VII) from synthetic leaching solutions of uranium ore using ionic liquid modified cellulose microsphere adsorbents, Hydrometallurgy, 10.1016/j.hydromet.2020.105457, (105457), (2020).

More

Minerals Free Full-Text Uranium (VI) Recovery from ...

This work studies the removal of uranium ions from chemically leached solutions by sorption using two weak and two strong base anionites. Batch sorption experiments were performed to evaluate the optimum conditions at pH 1.2–2.2, 1.0 g resin dose for 1–12 h contact time at room temperature. These experiments addressed sorption kinetics and sorption isotherm.

More

Method for the recovery of uranium from pregnant

The uranium is then recovered from solution by known separations techniques, such as for example precipitation. It is beneficially found that the at least 10% of the uranium found in the original PLS may be recovered. Within the pH range of 0 to 4 of the PLS, uranium recovery levels of up to 25% may be achieved, preferably up to 10%.

More

Rhenium Chalmers University of Technology 1o of March

2017-3-20  2. Innovation on Rhenium metallurgy Date: 20/03/2017 Hydrometallurgical extraction of Rhenium from secondary resources: e.g. KENNECOTT Process; KGHM Process and many other experimental (laboratory or pilot) hydrometallurgical processes (e.g. rhenium recovery from copper concentrates or molybdenite roasting).

More

Rhenium Recovery By Solvent Extraction and ...

A procedure developed by the US Bureau of Mines to recover rhenium in the form of electrolytic flakes by electrowinning the metal from a solvent-extraction strip solution is described. The recovered rhenium contains only about 0.1 % Mo and spectrograph traces of other impurities, such as copper, aluminum, calcium, chromium, iron, platinum, and silicon. The uses and properties of rhenium

More

Rhenium in Nuclear Fuel Cycle - technetium-99

2011-7-14  1. Associated rhenium recovery in uranium mining and hydrometallurgical processing 2. Rhenium-containing alloys - structural material of high temperature reactors 3. Rhenium as isotope production for nuclear medicine 4. Rhenium - a simulator of technetium in research 4 PRODUCTION OF RHENIUM 0 5 10 15 20 25 30 35 40 45 50 1 9 40 44 50 55 60 65 ...

More

Rhenium Production - ISTC

Uranium-containing precipitates are processed using separate technology. Rhenium content in solutions resulting from underground leaching is not higher than 0.2 – 0.4 mg/L. Though rhenium content in the solutions is low, a potential rhenium production by three mining pisions of “Kazatomprom” National Company could reach 6 tons per year.

More

US Patent for Methods and systems for recovering

Various embodiments provide new methods of rhenium recovery. The methods can include subjecting a metal-bearing solution to an activated carbon bed, and adsorbing rhenium onto the activated carbon. The methods can also include heating a basic aqueous elution solution and eluting the rhenium from the activated carbon with the heated elution solution.

More

Rhenium - Critical Metals Handbook - Wiley Online

New methods of production achieve better recovery and more pure products of molybdic oxide and ammonium perrhenate. Rhenium in ammonium perrhenate (APR) can be processed further for casting turbine blades for aero‐engines or solutions for the manufacture of reforming catalysts. The determining factor in rhenium recycling has been value ...

More

[Xe]6s 4f 5d USGS Mineral Resources Program

2015-5-14  rhenium recovery from molybdenite. Sediment-hosted stratabound copper deposits in Kazakhstan (sandstone-type) and Poland (Kupferschiefer [“copper schist”] or reduced facies-type) supply most of the remaining rhenium produced by mining. Small amounts of rhenium are recovered by processing roll-front-type sandstone uranium ores in

More

Minerals Free Full-Text Uranium (VI) Recovery from ...

This work studies the removal of uranium ions from chemically leached solutions by sorption using two weak and two strong base anionites. Batch sorption experiments were performed to evaluate the optimum conditions at pH 1.2–2.2, 1.0 g resin dose for 1–12 h contact time at room temperature. These experiments addressed sorption kinetics and sorption isotherm.

More

Rhenium Chalmers University of Technology 1o of March

2017-3-20  2. Innovation on Rhenium metallurgy Date: 20/03/2017 Hydrometallurgical extraction of Rhenium from secondary resources: e.g. KENNECOTT Process; KGHM Process and many other experimental (laboratory or pilot) hydrometallurgical processes (e.g. rhenium recovery from copper concentrates or molybdenite roasting).

More

Ion exchange recovery of rhenium from industrially relevant ...

Ion exchange recovery of rhenium from industrially relevant sulfate - Hydrometallurgy 158 (2015) ... 百度首页 登录 加入VIP 享VIP专享文档下载特权 赠共享文档下载特权 100w优质文档免费下载 赠百度阅读VIP精品版 立即开通 意见反馈 下载客户端 网页 ...

More

Domestic Uranium Production Report - Quarterly

Third-quarter 2020. EIA could not publicly release data for U.S. production of uranium concentrate (U3O8) in the third quarter of 2020. Domestic uranium production has declined considerably in recent years, and activity did not reach a threshold where a specific production figure could be published without violating the protections that EIA has committed to provide.

More