US3737513A - Recovery of uranium from an organic ...

a process for the recovery of uranium values from uranium carrying extracts containing a dialkylphosphoric acid and a trialkylphosphine oxide dissolved in an organic solvent is described. the process involves liquidliquid extraction of the extractants with an aqueous solution containing divalent iron and a complexing agent which may be either phosphoric acid, hydrofluoric acid or mixtures thereof.

In-Situ Recovery for Non-Uranium Metals; ALTA 2019 | CSA ...

CSA Global's Principal Resource Geologist, Dr Maxim Seredkin will present on 'In-situ Recovery for Non-Uranium Metals' between 18-25 May 2019 at the ALTA 2018 Nickel-Cobalt-Copper, Uranium-REE-Lithium Conference in Perth, Western Australia.

Rhenium Production - istc.int

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.

Sorption of rhenium and uranium by strong base ... - DeepDyve

Jan 01, 2013· Read "Sorption of rhenium and uranium by strong base anion exchange resin from solutions with different anion compositions, Hydrometallurgy" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

Recovery of rhenium from sulfuric acid solutions by ...

Download Citation on ResearchGate | Recovery of rhenium from sulfuric acid solutions by composite ion exchangers based on the polymer carrier and trialkylamine | Sorption of rhenium on samples of ...

(PDF) Sorption of rhenium and uranium from solutions of ...

Nowadays, there were established the regularities of rhenium and uranium sorption from solutions of their joint presence by highly basic anion exchangers A920 and AMP, used in sorption technology ...

Uranium - Wikipedia

Uranium is a naturally occurring element that can be found in low levels within all rock, soil, and water. Uranium is the 51st element in order of abundance in the Earth's crust. Uranium is also the highest-numbered element to be found naturally in significant quantities on Earth and is almost always found combined with other elements.

Rhenium | chemical element | Britannica.com

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.

Method for obtaining metallic rhenium by reduction of ...

The disadvantage of this method is that the resulting recovery of rhenium powder coarse and needs to be subjected to grinding in ball mills, which leads to rubbing impurities to rhenium. In addition, obtaining rhenium takes place in two stages, which increases the time, energy and number of required reagents.

Selected Ion Exchange Applications in the ...

Abstract Ion exchange is increasingly used in hydrometallurgical applications for the recovery or purification of metal solutions or for effluent treatment. This article reviews some recent applications, including the primary recovery of gold, uranium, and rhenium, and the purification of cobalt electrolyte to ensure high-purity metal by the removal of nickel, copper, zinc, and cadmium.

Rhenium price,Rhenium Oxide,Rhenium metal News and Price ...

Product definition:Refer to traded price range of major brands of Rhenium(99.99%) in China. SMM price :SMM price refers to a price range that reflects prices for transactions already made or for tradable spot goods in the market. However, any special prices arising from related party transactions, sell-offs caused by financial or legal ...

Rhenium Recovery By Solvent Extraction and ...

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 are discussed, and conventional recovery methods are reviewed.

Review of technologies for rhenium recovery from mineral ...

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 copper production. Solutions obtained …

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.

How to Recover Rhenium from Uranium Leach Liquor

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 selective for rhenium than for uranium.

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 ...

Uranium One FBI Informant Set To Testify [No Escape No Deals]

I will be nice to people and they'll be nice to me they didn't get no money they just gave it to him out of the goodness of his heart Obama gave him ouru rhenium out of the goodness of his heart because he wanted to be nice to the Russian government do you think the American people were born yesterday lady you can't tell me that they didn't get ...

rhenium copper recovering - supremewheels.co.za

The base mineral raw materials for recovery of rhenium are solid and liquid byproducts of molybdenum, copper, lead and uranium . Rhenium 2014 USGS Mineral Resources Program. production of rhenium in 2014 was estimated to be about. 44,700 kg, a slight increase from the revised 44,300 kg in. 2013 (table 4).

[Xe]6s 4f 5d USGS Mineral Resources Program Rhenium—A …

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

Review of technologies for rhenium recovery from mineral ...

For recovery of rhenium from these solutions solvent extraction technology is developed and introduced. Recovery of rhenium from the dusts into marketable products was 77%. The results of studies on the development of technology for production ammonium perrhenate from solutions after underground leaching of uranium ores have been presented.

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.

In situ recovery, an alternative to conventional methods ...

rhenium, rare earth elements, yttrium, selenium, molybdenum, and vanadium. ISR for copper was introduced ... In situ recovery (ISR)2 uranium mining technology was developed independently in both the USSR and in the USA in the late 1950s to early 1960s. It was developed in both countries using similar engineer-

Center of Earth Sciences, Metallurgy and Benefication ...

RHENIUM OF KAZAKHSTAN (Review of Technologies for Rhenium Recovery from Mineral ... E-mail: [email protected] Kazakhstan Review of Technologies for Rhenium Recovery from Mineral Raw Materials in Kazakhstan 2. Major Mineral Resources of Kazakhstan ... Underground leaching solutions along with uranium contain rhenium and ...

Rhenium Chalmers University of Technology 1o of March …

Rhenium containing titania spent catalysts: e.g. ExxonMobil Research and Engineering Company developed and patented the method for recovering rhenium from a titania-supported, rhenium-containing catalyst by treating the catalyst in the reduced form with an acid in an amount and for a time sufficient to dissolve the rhenium without

Recovery of tungsten and rhenium - GTE Products Corporation

Jul 08, 1986· More, particularly, it relates to a process for recovery of tungsten and rhenium from an impure solution by removing the tungsten from the solution as a solid with hexamine. In a process for recovering the metal values from tungsten-rhenium alloy scrap, an alkaline solution containing sodium tungstate and sodium perrhenate is generally formed.

US3790658A - Purification process for recovering uranium ...

US3790658A - Purification process for recovering uranium from an acidic aqueous solution by ph control - Google Patents ... of molybdenum values as high purity ammonium paramolybdate from impure molybdenum-bearing solution,with optional recovery of rhenium values if present US20050249652A1 (en) 2005-11-10: Process to recover vanadium contained ...

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.

US3495934A - Method for extracting rhenium from aqueous ...

US3495934A US614406A US3495934DA US3495934A US 3495934 A US3495934 A US 3495934A US 614406 A US614406 A US 614406A US 3495934D A US3495934D A US 3495934DA US 3495934 A US3495934 A US 3495934A Authority US United States Prior art keywords rhenium extraction aqueous phase aqueous solutions Prior art date 1967-02-07 Legal status (The legal status is an assumption …