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extraction molybdenum selective

US4026988A - Selective extraction of molybdenum from ...

Molybdenum is selectively extracted from an aqueous solution containing various other metal values, e.g. copper, arsenic, iron, bismuth, antimony, tin, and lead in addition to molybdenum. The molybdenum-bearing solution is adjusted to a pH of about 2.0 or less, and, then, intimately contacted with an organic extracting solution containing an alpha-hydroxy oxime.

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US4666685A - Selective extraction of molybdenum and ...

Selective extraction of molybdenum and vanadium from spent catalysts by oxidative leaching with sodium aluminate and caustic Download PDF Info Publication number US4666685A. US4666685A US06/861,689 US86168986A US4666685A US 4666685 A US4666685 A US 4666685A US 86168986 A US86168986 A US 86168986A US 4666685 A US4666685 A US 4666685A

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Selective liquid-liquid extraction of molybdenum (VI) and ...

Jan 01, 2020  S Selective extraction of vanadium (V) from solutions containing molybdenum (VI) by ammonium salts dissolved in toluene Solvent Extr. Ion Exc. , 10 ( 1992 ) , pp. 623 - 635 , 10.1080/07366299208918125

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Selective extraction of molybdenum from acidic leach ...

Title: Selective extraction of molybdenum from acidic leach liquors. United States Patent 4026988. Abstract: Molybdenum is selectively extracted from an aqueous solution containing various other metal values, e.g. copper, arsenic, iron, bismuth, antimony, tin, and lead in addition to molybdenum. The molybdenum-bearing solution is adjusted to a ...

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Selective extraction of molybdenum and vanadium from spent ...

Selective extraction of molybdenum and vanadium from spent catalysts by oxidative leaching with sodium aluminate and caustic . United States Patent 4666685 . Abstract: Spent hydrodesulfurization catalysts containing alumina, at least one metal from the group consisting of molybdenum, tungsten and vanadium and at least one metal from the group ...

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Method for the selective extraction of molybdenum and bismuth

In the method for the selective extraction of molybdenum and bismuth conduct leaching of molybdenum and bismuth chloride solutions, sorption of bismuth on the anion exchange resin, the desorption of bismuth. Before adsorption of bismuth spend the sorption of molybdenum and other heavy metals in phosphate-acidic cation exchanger at pH 0.0 to 0.5 ...

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Homogeneous liquid–liquid extraction method for the ...

May 15, 2005  Extraction of the ABO–molybdenyl complex, (C 14 H 12 O 2 N 2) 2 MoO 2, from the acid medium is a selective method for the separation of molybdenum , , . Thus, we examined ABO for the homogeneous liquid–liquid extraction of molybdenum.

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Solvent extraction of molybdenum from acidic leach ...

高达10%返现  May 30, 2013  A P204 (D2EHPA) diluted with sulfonated kerosene was used for the selective extraction of molybdenum from an acidic Ni–Mo ore leach solution that was reduced using sodium thiosulfate. The results indicate that P204 (D2EHPA) is an effective extractant for the extraction of molybdenum. The extraction of Mo is more than 90 % at pH of 0.5, contact time of 10 min, and

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The selective leaching and separation of molybdenum from ...

高达10%返现  Nov 01, 2013  In recent years, there has been an increasing focus on the hydrometallurgical processing of molybdenite, with the decline of high-grade and easily handled molybdenum minerals. In this work, a novel method of selective extraction of complex molybdenite concentrate, which is characteristic of high-grade copper ore, has been investigated. The results show

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Selective Liquid-Liquid Extraction of Molybdenum (VI) and ...

Selective solvent extraction of molybdenum over rhenium from molybdenite (MoS2) flue dust leaching solution was studied. In the present work, thermodynamic calculations of the chemical equilibria ...

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The selective leaching and separation of molybdenum from ...

Nov 01, 2013  In recent years, there has been an increasing focus on the hydrometallurgical processing of molybdenite, with the decline of high-grade and easily handled molybdenum minerals. In this work, a novel method of selective extraction of complex molybdenite concentrate, which is characteristic of high-grade copper ore, has been investigated. The results show that the leaching of chalcopyrite was ...

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Selective Recovery of Molybdenum over Rhenium from ...

Abstract: Selective solvent extraction of molybdenum over rhenium from molybdenite (MoS2) flue dust leaching solution was studied. In the present work, thermodynamic calculations of the chemical equilibria in aqueous solution were first performed, and the potential–pH diagram for the Mo–Re–SO2 4 –H2O system was constructed. With the ...

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Durable molybdenum oxide coated solid-phase ...

Durable molybdenum oxide coated solid-phase microextraction fiber for highly selective and efficient extraction of polycyclic aromatic hydrocarbons in water. Liu H(1), Wang X(1), Fan H(1), Dang S(1). Author information: (1)School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou, P. R. China.

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Extraction and selective stripping of molybdenum(VI) and ...

Molybdenum(VI) and vanadium(IV) were extracted preferentially and separated completely from the coexisting metals involved at low pH (e.g., around 1.5) with LIX 63 dissolved in Exxsol D80. Vanadium(IV) in the loaded organic phase was selectively stripped by contacting with a 2 M sulfuric acid solution and isolated from molybdenum(VI).

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(PDF) Homogeneous liquid–liquid extraction method for the ...

Extraction of the ABO-molybdenyl complex, (C 14 H 12 O 2 N 2 ) 2 MoO 2 , from the acid medium is a selective method for the separation of molybdenum [1,18,19]. Thus, we examined ABO for the homogeneous liquid-liquid extraction of molybdenum.

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The selective leaching and separation of molybdenum from ...

Under these conditions the extraction of molybdenum is greater than 99.9% and the extraction of copper is less than 0.01%. A shrinking particle model could be used to describe the leaching process.

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Selective adsorption of molybdenum ions on ionic liquid ...

Sep 12, 2021  Abstract The adsorption of molybdenum (Mo) ions on ionic liquid-loaded XAD-7 resin containing 1-butyl-3-methylimidazolium(2,4,6-trimethyl)benzodithioate from acidic feed solutions was investigated. The novel loaded resin could adsorb more than 99.0% Mo ions from nitric acid solutions at a concentration between 0.050 and 0.50 M; however, the adsorption percentage of U(VI), Cs(I), Ce(III),

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Extraction of molybdenum as an added value in steel ...

Aug 01, 2017  In the second step, a selective leaching of molybdenum was designed and tested. Step 2 showed that molybdenum can be efficiently leached with a low concentration of hydroxide and that the liquid does not need to be heated. After leaching, molybdenum can be separated from contaminating metals, mainly zinc, with conventional liquid extraction.

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Molybdenum - Wikipedia

Molybdenum is a chemical element with the symbol Mo and atomic number 42. The name is from Neo-Latin molybdaenum, which is based on Ancient Greek Μόλυβδος molybdos, meaning lead, since its ores were confused with lead ores. Molybdenum minerals have been known throughout history, but the element was discovered (in the sense of differentiating it as a new entity from the mineral salts of ...

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How to Separate Recover Molybdenum Rhenium

Jan 05, 2021  The preceding experiments demonstrated the accomplishment of the major goals of the study. Molybdenum and rhenium were recovered quantitatively from Elox process solution by solvent extraction. Rhenium and molybdenum were separated by selective adsorption of rhenium onto activated carbon.

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酸性体系中钼的溶剂萃取研究进展 - xml-data

Olazabal M A, Orive M M. Selective extraction of vanadium from solutions containing molybdenum by ammonium salts dissolved in toluene[J]. Solvent Extraction And Ion Exchange, 1992, 10(4): 623–635. DOI: 10.1080/07366299208918125. [15] Sato T, Watanabe H, Suzuki H. Liquid-liquid extraction of molybdenum from aqueous acid solutions by TBP and ...

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Molybdenum Carbide and Sulfide Nanoparticles as Selective ...

As the two types of major impurities in FCC slurry oil (SLO), olefins and sulfur seriously deteriorate the preparation and quality of mesophase pitch or needle coke. The development of a hydrotreatment for SLO to remove olefins and sulfur selectively becomes imperative. This work presents the potentiality of dispersed Mo2C and MoS2 nanoparticles as selective hydrotreating catalysts of SLO.

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US4026988A - Selective extraction of molybdenum from ...

Molybdenum is selectively extracted from an aqueous solution containing various other metal values, e.g. copper, arsenic, iron, bismuth, antimony, tin, and lead in addition to molybdenum. The molybdenum-bearing solution is adjusted to a pH of about 2.0 or less, and, then, intimately contacted with an organic extracting solution containing an alpha-hydroxy oxime.

More

US4666685A - Selective extraction of molybdenum and ...

Selective extraction of molybdenum and vanadium from spent catalysts by oxidative leaching with sodium aluminate and caustic Download PDF Info Publication number US4666685A. US4666685A US06/861,689 US86168986A US4666685A US 4666685 A US4666685 A US 4666685A US 86168986 A US86168986 A US 86168986A US 4666685 A US4666685 A US

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Selective liquid-liquid extraction of molybdenum (VI) and ...

Jan 01, 2020  S Selective extraction of vanadium (V) from solutions containing molybdenum (VI) by ammonium salts dissolved in toluene Solvent Extr. Ion Exc. , 10 ( 1992 ) , pp. 623 - 635 , 10.1080/07366299208918125

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Selective extraction of molybdenum from copper concentrate ...

May 01, 2017  Selective leaching of molybdenum from copper concentrate by air oxidation was investigated in alkaline solution. • The leaching behaviors of Cu and Mo phase were predicted by Eh-pH diagrams of Mo-S-H 2 O and Cu–Fe–S–H 2 O system, respectively.. The oxidation mechanisms of sulfides in the copper concentrate were illustrated by methods of

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Selective extraction of molybdenum from acidic leach ...

Title: Selective extraction of molybdenum from acidic leach liquors. United States Patent 4026988. Abstract: Molybdenum is selectively extracted from an aqueous solution containing various other metal values, e.g. copper, arsenic, iron, bismuth, antimony, tin, and lead in addition to molybdenum. The molybdenum-bearing solution is adjusted to a ...

More

Selective extraction of molybdenum and vanadium from spent ...

Selective extraction of molybdenum and vanadium from spent catalysts by oxidative leaching with sodium aluminate and caustic . United States Patent 4666685 . Abstract: Spent hydrodesulfurization catalysts containing alumina, at least one metal from the group consisting of molybdenum, tungsten and vanadium and at least one metal from the group ...

More

Method for the selective extraction of molybdenum and bismuth

In the method for the selective extraction of molybdenum and bismuth conduct leaching of molybdenum and bismuth chloride solutions, sorption of bismuth on the anion exchange resin, the desorption of bismuth. Before adsorption of bismuth spend the sorption of molybdenum and other heavy metals in phosphate-acidic cation exchanger at pH 0.0 to 0.5 ...

More

Extraction of molybdenum as an added value in steel ...

Aug 01, 2017  Aug 01, 2017  In the second step, a selective leaching of molybdenum was designed and tested. Step 2 showed that molybdenum can be efficiently leached with a low concentration of hydroxide and that the liquid does not need to be heated. After leaching, molybdenum can be separated from contaminating metals, mainly zinc, with conventional

More

Extraction and selective stripping of molybdenum(VI) and ...

Molybdenum(VI) and vanadium(IV) were extracted preferentially and separated completely from the coexisting metals involved at low pH (e.g., around 1.5) with LIX 63 dissolved in Exxsol D80. Vanadium(IV) in the loaded organic phase was selectively stripped by contacting with a 2 M sulfuric acid solution and isolated from molybdenum(VI).

More

Selective Liquid-Liquid Extraction of Molybdenum (VI) and ...

Selective solvent extraction of molybdenum over rhenium from molybdenite (MoS2) flue dust leaching solution was studied. In the present work, thermodynamic calculations of

More

(PDF) Selective Recovery of Molybdenum over Rhenium from ...

Oct 26, 2020  Oct 26, 2020  Selective solvent extraction of molybdenum over rhenium from molybdenite (MoS2) flue dust leaching solution was studied. In the present work, thermodynamic calculations of the chemical equilibria ...

More

Molybdenum - Wikipedia

Molybdenum is a chemical element with the symbol Mo and atomic number 42. The name is from Neo-Latin molybdaenum, which is based on Ancient Greek Μόλυβδος molybdos, meaning lead, since its ores were confused with lead ores. Molybdenum minerals have been known throughout history, but the element was discovered (in the sense of differentiating it as a new

More

Selective Recovery of Molybdenum over Rhenium from ...

Abstract: Selective solvent extraction of molybdenum over rhenium from molybdenite (MoS2) flue dust leaching solution was studied. In the present work, thermodynamic calculations of the chemical equilibria in aqueous solution were first performed, and the potential–pH diagram for the Mo–Re–SO2 4 –H2O system was constructed. With the ...

More

Solvent extraction of molybdenum from acidic leach ...

May 30, 2013  A P204 (D2EHPA) diluted with sulfonated kerosene was used for the selective extraction of molybdenum from an acidic Ni–Mo ore leach solution that was reduced using sodium thiosulfate. The results indicate that P204 (D2EHPA) is an effective extractant for the extraction of molybdenum. The extraction of Mo is more than 90 % at pH of 0.5, contact

More