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Adsorption and desorption properties for rhenium using a kind of weak-base anion resin

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Rare Metals 2018年第8期37卷 707-715页

作者： Hong-Zhao Liu Bo Zhang Xiao-Jing Jing Wei Wang Li-Jun Wang Rare Metal and Metallurgy Materials Research Institute General Research Institute for Nonferrous Metals Beijing 100088 China Zhengzhou Institute of Multipurpose Utilization oI Mineral Resources Zhengzhou 450006 China Key Laboratory of Evaluation and Multipurpose Utilization of Polymetallic Ore of Ministry of Land and Resources Zhengzhou 450006 China

In this paper, a weak-base resin was adopted to recycle rhenium because of its excellent adsorption and desorption properties for rhenium, while the kinetics and thermodynamics properties of adsorbing rhenium from the rhenium stock solution were systematically investigated. The kinetics investigations confirm that the adsorption process of Re belongs to kinetic control by particle diffusion process and the corresponding reaction rate constant is 2.68 × 10-s s^-1. Then, the Langmuir and Freundlich models were used to describe the adsorption equilibrium behaviors of Re and the thermodynamics parameters are obtained. The results show that the Langmuir model is the best-fitted model, and the Gibbs free energy change of Re adsorption onto ZS 15 weak-base resin is AGO = - 10.59 ＋ 12.66T. To verify the weak-base resins for extracting rhenium in industrial application, the column experiments were operated in the spray solution generating by roasting the molybdenum concentrates. The results indicate that the weak-base resins possess excellent adsorptive selectivity for rhenium, and the ammonia solution with low concentration could sufficiently desorb rhe- nium from the resins.

关键词： rhenium Weak base Thermodynamics Kinetics

Taming heterogeneous rhenium catalysis for the production of biomass-derived chemicals

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Chinese Chemical Letters 2020年第5期31卷 1071-1077页

作者： Keiichi Tomishige Yoshinao Nakagawa Masazumi Tamura Department of Applied Chemistry School of EngineeringTohoku UniversityMiyagi 980-857Japan

rhenium is one of important components for heterogeneous catalysts,which has been recently used for the catalytic reactions related to the production of biomass-derived chemicals such as deoxydehydration of vicinal OH groups,C-O hydrogenolysis,and hydrogenation of carboxylic acids,and so on.Suitable oxidation state of Re as a catalytic active species is strongly dependent on the catalytic reactions.The control of the oxidation state of Re species on the catalysts is crucial on the catalyst development.

关键词： rhenium Oxidation state Deoxydehydration Hydrogenolysis Hydrogenation

Geochemistry of rhenium and Other Trace Elements in Molybdenite,Sar Cheshmeh Porphyry Cu-Mo Deposit,Iran

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Acta Geologica Sinica(English Edition) 2021年第4期95卷 1217-1235页

作者： Behnam SHAFIEI BAFTI Martin SVOJTKA Mehdi ABDOLAHI Department of Geology Faculty of ScienceGolestan UniversityGorganIran Department of Geology Faculty of ScienceShahid Bahonar University of KermanKermanIran Institute of Geology of the Czech Academy of Sciences PragueCzech Republic Geology Office Mining AffairsSar Cheshmeh Copper ComplexRqfsanjanIran

LA-ICP-MS analysis of molybdenite from the Sar Cheshmeh porphyry Cu-Mo deposit(PCD),Iran,shows moderate concentration of Re(average~207 ppm)and low concentration of chalcogenides(average of Pb+Te+Bi,~31 ppm)as well as metalloids(average of As+Sb+Ge,~4.5 ppm).The early-formed quartz–molybdenites associated with potassic alteration are characterized by moderately low concentration of Re(21–215 ppm with an average of 83 ppm),whereas the transitional quartz–molybdenite veins related to the sericitic stage of mineralization contain more Re(62–465 ppm,with an average of 207 ppm).In contrast,the late-formed quartz–molybdenite veins associated with phyllic alteration show the highest concentration of Re(up to 1273 ppm with an average of 395 ppm).Gradual increase in Re content of molybdenites deposited throughout the evolution of the porphyry system is probably related to elevated fO_(2) and acidic conditions of the ore fluids governing the transitional and late stage of mineralization,when compared to the moderately low fO_(2) and basic conditions of the ore fluids precipitating the low-Re molybdenites associated with potassic alteration.The mixed mantle/crustal source of the ore-related magma and its fractionated composition in Sar Cheshmeh are consistent with magmatic conditions for the formation of Mo-rich and Re-poor PCDs in the world.

关键词： rhenium molybdenite LA-ICP-MS porphyry Cu Sar Cheshmeh Iran

Selectivity recovery of molybdenum(VI) from rhenium(VII) by amine-modified persimmon waste

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Rare Metals 2016年第6期35卷 502-508页

作者： Zhen-Ning Lou Ye-Xia Li Fu-Qiang Ren Qing Zhang Li Wan Zhi-Qiang Xing Shu-Liang Zang Ying Xiong College of Chemistry Liaoning University

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 concen-trations was studied. It is found that the NH2-CPT exhibits high affinity for Mo（VI） and no affinity for Re（VII）, Cu（II）, Fe（III）, Mn（VII）, and Zn（II） under the operating conditions. The maximum adsorption capacity for Mo（VI） is 172 mg·g^-1, and the adsorption behavior obeys the Langmuir model. Owing to Mo（VI） as poly-anions, the adsorption mechanism of molybdenum anions could be explained as the anion exchange reactions at weak acid concentration, while neutral molecules could be explained as the complexation reactions at strong acid concentration, respectively. In addition, its excellent adsorption characteristics for Mo（VI） are confirmed by separation of Mo（VI） from Mo to Re containing industrial effluent.

关键词： Persimmon Molybdenum rhenium waste Adsorption Biomass Separation

Highly selective adsorption of rhenium by amyloid-like protein material

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Science China Technological Sciences 2024年第5期67卷 1417-1430页

作者： MUHAMMAD Arif YANG QingMin KANWAL Aisha ZHAO Jian NAWAZ Mohsan REN Hao YANG Peng Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education Xi'an Key Laboratory of Polymeric Soft Matter 3. International Joint Research Center on Functional Fiber and Soft Smart Textile School of Chemistry and Chemical Engineering Shaanxi Normal University School of Chemistry and Chemical Engineering Northwestern Polytechnical University Department of Chemistry Hazara University

rhenium separation from molybdenum in molybdenite minerals and waste leachate has become an emerging challenge. Addressing this challenge, we prepared a set of protein-based alkylamine/alkylammonium salts complexes as extractants for selective uptake of rhenium from molybdenum, where the protein component turned into the insoluble amyloid-like structure when its internal disulfide bonds were reduced, namely phase-transition process. Among them, the phase-transited lysozyme and methyletrioctyleammonium chloride complex(PTL-N263) exhibited the most efficient adsorption at the alkaline condition for the electrostatic interaction between negatively charged metal ions with positively charged center(R4N+) in N263, where negatively charged protein residues hindered the ion exchange of Cl-in N263 for larger size Mo species(Mo7O246-) than smaller size Re species(ReO4-). The adsorption follows the Freundlich model and pseudo-second-order kinetics, which exhibits toplevel adsorption performance with a maximum adsorption capacity of 124 mg/g and a separation factor(βRe/Mo) of 2.78 × 103for Re. The adsorption capacity per unit area(57.2 mg/(g m2)) is 1.6–41 times higher than previously reported adsorbents, and the cost for adsorbing 1 g of Re(VII) is $1.07, indicating its industrial capability. This adsorption strategy can be applied to separating Re from Mo in binary solutions and industrial wastewater with other competing ions.

关键词： amyloid phase-transited lysozyme selective adsorption rhenium waste leachate solution

Synthesis of ultrathin rhenium disulfide nanoribbons using nano test tubes

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Nano Research 2022年第2期15卷 1282-1287页

作者： Luke T.Norman Johannes Biskupek Graham A.Ranee Craig T.Stoppiello Ute Kaiser Andrei N.Khlobystov School of Chemistry University of NottinghamNottinghamNG72RDUK Central Facility for Electron Microscopy Ulm UniversityAlbert Einstein-Allee 11Ulm 89081Germany Nanoscale and Microscale Research Centre University of NottinghamNottinghamNG72RDUK

The synthesis of ultrathin rhenium disulfide(ReS_(2))nanoribbons within single-walled carbon nanotubes(SWNTs)has been established.Dirhenium decacarbonyl complex is encapsulated into the SWNTs to provide a source of confined rhenium atoms,which readily react with iodine to form discrete nm-sized clusters of rhenium iodide[Re_(6)l_(14)]^(2-) embedded in the nanotubes.The final step of the synthesis is accomplished by admitting hydrogen sulfide gas into nano test tubes,yielding twisted nanoribbons of rhenium disulfide encapsulated in carbon nanotubes,ReS_(2)@SWNTs.The width,structure,and composition of rhenium disulfide nanoribbons are strictly controlled by the extreme confinement of the host-SWNT.A holistic analytical approach combining complementary imaging and analysis methods is used at each synthetic step to elucidate the structure and composition of the guest material and reveal the role of the SWNT contributing towards the electronic interactions with encapsulated inorganic structures.As ReS_(2) nanoribbons are expected to retain the electronic properties of the bulk material,such as direct bandgap,the low dimensional form of this material can be of interest for use in nanoscale electronic devices.

关键词： nanotubes nanoribbons rhenium confinement microscopy spectroscopy

High-pressure Raman study of osmium and rhenium up to 200 GPa and pressure dependent elastic shear modulus C_(44)

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Chinese Physics B 2022年第3期31卷 545-549页

作者：刘静仪陶雨范春梅吴彬彬唐琦琪雷力 Institute of Atomic and Molecular Physics Sichuan UniversityChengdu 610065China

High-pressure Raman scattering from hexagonal close-packed(HCP) metals Os and Re have been extended up to 200 GPa, and the pressure-dependent shear modulus C_(44)has been deduced from the Raman-active mode E_(28), which is generated from the adjacent vibration of atoms in hexagonal planes, providing the valuable information about the elastic properties for HCP metals under high pressure. Combined with the available data of HCP metals from previous works,a further study indicates that the C_(44)/C_(44)ratio would be close to a constant value, 0.01, with increasing atomic number of metals. The results obtained from high-pressure Raman scattering will allow us to probe the elastic anisotropy of the HCP metals at very high pressure.

关键词： hexagonal close-packed(HCP)metals osmium rhenium high-pressure Raman scattering shear modulus C_(44)

Role of support nature (γ-Al_2O_3 and SiO_2-Al_2O_3) on the performances of rhenium oxide catalysts in the metathesis of ethylene and 2-pentene

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Journal of Natural Gas Chemistry 2012年第2期21卷 158-164页

作者： Weena Phongsawat Benjamas Netiworaruksa Kongkiat Suriye Siraprapha Dokjampa Piyasan Praserthdam Joongjai Panpranot Center of Excellence on Catalysis and Catalytic Reaction Engineering Department of Chemical Engineering Faculty of Engineering Chulalongkorn University SCG Chemicals CO. Ltd. 1 Siam Cement Rd. Bangsue Bangkok 10800 Thailand

The metathesis of ethylene and 2-pentene was studied as an alternative route for propylene production over Re2O7/γ-Al2O3 and Re2O7/SiO2-Al2O3 catalysts. Both NH3 temperature-programmed desorption （NH3-TPD） and H2 temperature-programmed reduction （H2-TPR） results showed that Re2O7/SiO2-Al2O3 exhibited stronger acidity and weaker metal-support interaction than Re2O7/γ-Al2O3. At 35 60℃, isomerization free metathesis was observed only over Re2O7/γ-Al2O3, suggesting that the formation of metal-carbene metathesis active sites required only weak acidity. Our results suggest that on the Re2O7/SiO2-Al2O3, hydrido-rhenium species （[Re]-H） were formed in addition to the metathesis active sites, resulting in the isomerization of the initial 1-butene product into 2-butenes. A subsequent secondary metathesis reaction between these 2-butenes and the excess ethylene could explain the enhanced yields of propylene observed. The results demonstrate the potential for high yield of propylene from alternative feedstocks.

关键词： metathesis isomerization propylene production 2-pentene rhenium

First-principles calculations of lattice stability of technetium and rhenium

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中国有色金属学会会刊：英文版 2009年第S3期19卷 780-784页

作者：陶辉锦陈伟民周文王赫男 School of Materials Science and Engineering Central South University Key Laboratory of Nonferrous Materials Science and Engineering Ministry of EducationCentral South University School of Metallurgical Science and Engineering Central South University School of Energy Science and Engineering Central South University

Lattice constants, total energies and densities of state of technetium(Tc) and rhenium(Re) with different crystalline structures were calculated with the GGA+PBE function, ultra-soft pseudo-potential and plane wave method in first-principles. The results were compared with those of projector augmented wave(PAW) method in first-principles and experimental data. The lattice stability results prove that HCP phase is the most stable phase, which agrees well with those of PAW method in first-principles and CALPHAD method. Further analyses of densities of state also give the same result of lattice stability for HCP-, FCC-, BCC-Tc and Re. Analyses of atomic populations show that the lattice stability of technetium and rhenium is probably related to the electrons in p and d state.

关键词： technetium rhenium lattice stability first principles