rhenium containing separator

  • Method of separating isotopes of rhenium in an

    Method of separating isotopes of rhenium, characterized in that use electromagnetic separator with an ion source, in a graphite crucible which is placed the working substance perrenate potassium is heated to a vapor state, ionize obtained pairs in the discharge chamber of the source under the action of electron emission from the; form the ion beam electrodes of the ionoptical system, separate ion beams of

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  • Separation of rhenium by extraction with crown

      Microgram amounts of rhenium were satisfactorily separated from large amounts of molbdenum(VI) by extraction with DC18C6 in 1,2dichloroethane from 2 M potassium hydroxide solution containing tartrate and by backextraction with sodium phosphate buffer solution after the addition of a twofold volume of hexane to the organic phase

    Cited by: 15
  • Review of rhenium extraction and recycling

      Spent rheniumcontaining catalysts typically contain ~ 03 wt% rhenium, ~03 wt% platinum, and alumina These can be treated for selective recovery of rhenium and platinum Kasikov and Petrova (2008) reviewed the decomposition methods and divided them into two groups, selective extraction of rhenium without the carrier material decomposition and incorporating decomposition of catalyst

    Author: Leiting Shen, Leiting Shen, Fiseha Tesfaye, Xiaobin Li, Daniel Lindberg, Pekka Taskinen
  • Recycling of rheniumcontaining wire scrap Request

    The process consists of: (a) adjusting the pH of the relatively impure solution to from about 90 to about 100 to precipitate impurities contained therein and form a purified tungsten and rhenium

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  • Sorption of Rhenium from Concentration Products of

      The material containing gold in amounts more than 800 kg/t is acquired with a decrease in the yield of a heavy fraction by 11 rel % Magnetic liquid separation is based on Sorption of Rhenium from Concentration Products of Placers of Concentrate Gold by Magnetic Liquid Separation SpringerLink

    Cited by: 2
  • Process of recovering rhenium values from complex

    The rhenium containing solids from the filter or other liquidsolids separation device are processed by known hydrometallurgical treatments to recover the rhenium values therefrom Such treatments include leaching of the solids under mild oxidizing conditions as well as other disclosed in "The Chemistry of Rhenium" by K B Lebedev, Butterworths, London (1962) pages 66 to 72

  • Active Carbon Modified by Rhenium Species as a

      The rheniumcontaining activated carbon catalyst can be also prepared using decacarbonyldirhenium and microwave irradiation [14] Prior to the rhenium precursor, active carbon should be pretreated with nitric acid to produce active sites, responsible for rhenium binding Short irradiation allows to decompose the rhenium precursor into metallic rhenium

    Author: Mateusz Ciszewski, Andrzej Koszorek, Łukasz Hawełek, Małgorzata Osadnik, Katarzyna Szleper, Michał D
  • Chemistry – A European Journal: Vol 24, No 51

      Rheniumcontaining octahedral clusters [Re 6 Q 8 (CN) 6] 4− with Q=S, Se or Te exhibit high propensity to interact with γcyclodextrin in aqueous solutions, leading to host–guest supramolecular assemblies, driven by the chaotropic nature of these ions Encapsulation processes give rise to significant alterations of the intrinsic physical–chemical properties of the cluster core, such as decreasing of the

  • (PDF) Leaching behavior of rhenium and molybdenum

    Bioleaching tests showed that rhenium was extracted from the molybdenite concentrate, but rhenium extraction was low Maximum rhenium extraction was 73%, while molybdenum extraction was 054%

  • 刘天西教授课题组

    TitaniumContaining MetalOrganic Framework Modified Separator for Advanced LithiumSulfur Batteries ACS Sustainable Chem Eng 2020, 8, 1296812975 [ 202028pdf ]

  • Separation of rhenium by extraction with crown

      Microgram amounts of rhenium were satisfactorily separated from large amounts of molbdenum(VI) by extraction with DC18C6 in 1,2dichloroethane from 2 M potassium hydroxide solution containing tartrate and by backextraction with sodium phosphate buffer solution after the addition of a twofold volume of hexane to the organic phase

  • Chemistry – A European Journal: Vol 24, No 51

      Rheniumcontaining octahedral clusters [Re 6 Q 8 (CN) 6] 4− with Q=S, Se or Te exhibit high propensity to interact with γcyclodextrin in aqueous solutions, leading to host–guest supramolecular assemblies, driven by the chaotropic nature of these ions Encapsulation processes give rise to significant alterations of the intrinsic physical–chemical properties of the cluster core, such as decreasing of the

  • Rhenium Podcast Chemistry World

    Rhenium sits two places below manganese in the periodic table and its existence was first predicted by Mendeleev when he first proposed his periodic table in 1869 In fact this group is unusual in that, when the periodic table was first published, it possessed only

  • Active Carbon Modified by Rhenium Species as a

    We have reported the synthesis of a new kind of composite combining a rhenium precursor and active carbon Similarly to other refractory metals, rhenium exhibits several oxidation states that makes it an ideal candidate for redoxtype energy storage materials

  • WOA2 Rheniumcontaining

    Transalkylation catalysts containing rhenium and a molecular sieve component comprising an acidic MFI molecular sieve having a Si/Al2 molar ratio of less than 80 and mordenite provide a transalkylation product with a low content of benzene coboilers

  • Precious Metals Refining Jacobs I

      Iridium, Rhenium and Osmium We refine precious metals for our cus 8 Magnetic separator 9 Rotary divider 95 : 05 10 Fines 11 Pellets 12 Iron 13 Oversize 14 Sample Precious metal containing materials from primary and secondary sources Precious Metal Trading 5 4 2 3 1 B 6 7 A C

  • JPA Rheniumcontaining transalkylation

    A transalkylation catalyst comprising a rhenium component and a molecular sieve component comprising an acidic MFI molecular sieve having a Si / Al 2 molar ratio of less than 80 and mordenite provides a transalkylation product having a low benzene azeotrope content

  • PalladiumBased Alloy Membranes for Separation of

      The separation of high purity hydrogen from hydrogencontaining gas mixtures using palladiumbased alloy membranes is an effective, environmentally sustainable and economical process for the commercial production of high purity hydrogen The

  • 刘天西教授课题组

    TitaniumContaining MetalOrganic Framework Modified Separator for Advanced LithiumSulfur Batteries ACS Sustainable Chem Eng 2020, 8, 1296812975 [ 202028pdf ]

  • 上海交通大学核科学与工程学院

    Adsorption performance of porous 4vinylpydinebased anion exchanger for rhenium (VII) as analogue to 99 Tc Nucl SciTech,2017, 28 (3):17 6 Jianhua Zu *, Ruiqin Liu, Jianqiu Zhang, Fangdong Tang, Linfeng He Adsorption of Re and 99 Tc by means of radiationgrafted weak basic anion exchange resin

  • Rhenium Podcast Chemistry World

    Rhenium sits two places below manganese in the periodic table and its existence was first predicted by Mendeleev when he first proposed his periodic table in 1869 In fact this group is unusual in that, when the periodic table was first published, it possessed only

  • Precious Metals Refining Jacobs I

      Iridium, Rhenium and Osmium We refine precious metals for our cus 8 Magnetic separator 9 Rotary divider 95 : 05 10 Fines 11 Pellets 12 Iron 13 Oversize 14 Sample Precious metal containing materials from primary and secondary sources Precious Metal Trading 5 4 2 3 1 B 6 7 A C

  • Production of MassSeparated Erbium169 Towards

      MEDICIS' Laser Ion Source for Separator Assembly (MELISSA) was utilized for the offline mass separation of 169 Er 169 Ercontaining ampoules were opened and transferred into an ISOLDE standard tantalum target container The container was connected to a rhenium ion source via a transfer line The extraction electrode was positioned after an acceleration gap of 60 mm from the ion source's

  • JPA Rheniumcontaining transalkylation

    A transalkylation catalyst comprising a rhenium component and a molecular sieve component comprising an acidic MFI molecular sieve having a Si / Al 2 molar ratio of less than 80 and mordenite provides a transalkylation product having a low benzene azeotrope content

  • 刘天西教授课题组

    TitaniumContaining MetalOrganic Framework Modified Separator for Advanced LithiumSulfur Batteries ACS Sustainable Chem Eng 2020, 8, 1296812975 [ 202028pdf ]

  • Recovery of Noble Metals from Spent Catalysts: A

      In the past several decades, many technologies to recover platinum group metals (PGMs) and rhenium (Re) from electronic waste and spent catalysts have been developed and published The reasons for the rising interest in this area are: (1) The abundance of these elements in the earth’s crust is < 10−3 ppm (~ 66 × 104 tons worldwide); (2) global demand for PGMs is > 590 tons; (3

  • Catalysts for nitrogen reduction to ammonia Nature

      The MoFe protein is a larger α2β2 tetramer containing two Fe 8 S 7 ‘P clusters’ Using a proton exchange membrane as a separator, including hafnium and rhenium 60,61,62,

  • Chemistry – A European Journal: Vol 15, No 9

      Resolution through revolution: It is possible to extract 3,5dinitrobenzoylprotected amino acids enantioselectively with the aid of a tabletop centrifugal contact separator and a catalytic amount of a chiral host compound based on the Cinchona alkaloids Enantioselectivities of up to 80 % could be reached in a single pass

  • Detection of Bromine by ICPoaToFMS Following

      A unique flowthrough photochemical reactor is utilized for the generation of volatile methyl bromide from aqueous solutions of bromide and bromate ions in a medium of 2% acetic acid containing 3000 μg/mL NH4Cl The volatile product is transported to a thinfilm gas–liquid phase separator and directed to an inductively coupled plasma (ICP) tineofflight mass spectrometer for detection and

  • ACCEPTED MANUSCRIPT 9

      containing 120 g of sulfur powder was placed downstream as sulfur source, as shown in Scheme 1 The furnace was heated up to 800℃ at a rate of 20℃ min1 under a argon ambient The growth of ReS 2 /CNTs was performed at 800 ℃ for 30 minutes, and the main reaction equations are as follows [21]: 1 𝐻4 𝑒 4 600~700℃

  • Precious Metals Refining Jacobs I

      Iridium, Rhenium and Osmium We refine precious metals for our cus 8 Magnetic separator 9 Rotary divider 95 : 05 10 Fines 11 Pellets 12 Iron 13 Oversize 14 Sample Precious metal containing materials from primary and secondary sources Precious Metal Trading 5 4 2 3 1 B 6 7 A C

  • REFORMING SOLUTIONS FOR IMPROVED PROFITS IN AN

      platinumcontaining reforming catalyst In order to maximize cycle lengths, the first fixedbed SEP Separator DEB Debutanizer Net Gas Fuel Gas LPG Reformate Feed HH H Rx Rx C F E S E P D E B AM1159 Page 3 Rhenium is not used since CCR reforming catalysts do not need to

  • Recovery of Noble Metals from Spent Catalysts: A

      In the past several decades, many technologies to recover platinum group metals (PGMs) and rhenium (Re) from electronic waste and spent catalysts have been developed and published The reasons for the rising interest in this area are: (1) The abundance of these elements in the earth’s crust is < 10−3 ppm (~ 66 × 104 tons worldwide); (2) global demand for PGMs is > 590 tons; (3

  • Catalysts for nitrogen reduction to ammonia Nature

      The MoFe protein is a larger α2β2 tetramer containing two Fe 8 S 7 ‘P clusters’ Using a proton exchange membrane as a separator, including hafnium and rhenium 60,61,62,

  • Catalytic Reforming SIE NEFTEHIM, LLC

    Rhenium modified platinum alumina catalysts — platinumrhenium catalysts, in some cases having additional third component, are wide spread in commercial practice Information of this chapter is given exclusively for a reference purpose You can find

  • CUSTOMS TARIFF SCHEDULE XV

      manganese, beryllium, chromium, germanium, vanadium, gallium, hafnium, indium, niobium (columbium), rhenium and thallium 4 Throughout the Nomenclature, the term "cermets" means products containing a microscopic heterogeneous combination of a metallic component and a ceramic component

  • Molecular Nitrogen–Carbon Catalysts, Solid Metal

      The CO 2 electrochemical reduction reaction (CO2RR) is a promising technology for converting CO 2 into chemicals and fuels, using surplus electricity from renewable sources The technological viability of this process, however, is contingent on finding affordable and efficient catalysts A range of materials containing

  • Detection of Bromine by ICPoaToFMS Following

      A unique flowthrough photochemical reactor is utilized for the generation of volatile methyl bromide from aqueous solutions of bromide and bromate ions in a medium of 2% acetic acid containing 3000 μg/mL NH4Cl The volatile product is transported to a thinfilm gas–liquid phase separator and directed to an inductively coupled plasma (ICP) tineofflight mass spectrometer for detection and

  • Covalent organic frameworks (COFs) for

    For example, Zhang's group synthesized a novel type of ionic COFs containing hybridized boron anionic centres and tuneable counter cations [(NMe 2) + for ICOF1 and Li + for ICOF2] 257 By taking advantage of the high accessibility of Li ions, ICOF2 exhibited a high Liion conductivity (305 × 10 −5 S cm −1) and a Li + transfer number

  • ACCEPTED MANUSCRIPT 9

      containing 120 g of sulfur powder was placed downstream as sulfur source, as shown in Scheme 1 The furnace was heated up to 800℃ at a rate of 20℃ min1 under a argon ambient The growth of ReS 2 /CNTs was performed at 800 ℃ for 30 minutes, and the main reaction equations are as follows [21]: 1 𝐻4 𝑒 4 600~700℃