Continuous process for purifying molybdenum (Patent ,- molybdenum trioxide impure ,This patent describes a process for purifying molybdenum trioxide with a controlled content of potassium It comprises: first leaching impure molybdenum trioxide containing potassium as an impurity, in a liquid medium consisting .molybdenum - Florida-Spectrum Environmental Testing and ,The metal was prepared in an impure form in 1782 by Hjelm Molybdenum does not occur native, but is obtained principally from molybdenite (MoS2) Wulfenite (PbMoO4) and powellite (Ca(MoW)O4) are also minor commercial ores .
  • ELEMENT: MOLYBDENUM - RADIOCHEMISTRY SOCIETY ,

    History (Gr molybdos, lead) Before Scheele recognized molybdenite as a distinct ore of a new element in 1778, it was confused with graphite and lead ore The metal was prepared as an impure form in 1782 by Hjelm Molybdenum .

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  • Purification of molybdenum - GTE Products Corporation

    Purification of molybdenum United States Patent 4612172 Abstract: A process is disclosed for removing potassium from a relatively impure molybdenum trioxide and forming a molybdenum compound of high purity The process .

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  • Molybdenum - Periodic Table of Elements: Los Alamos ,

    The metal was prepared in impure form in 1782 by Hjelm Molybdenum does not occur natively, but is obtained principally from molybdenite Wulfenite, and Powellite are also minor commercial or Sources Molybdenum is also .

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  • Molybdenum - The Third Millennium Online!

    Isotopes Molybdenum has six stable isotopes and almost two dozen radioisotopes, the vast majority of which have half-lives measured in seconds Mo-99 is used in technetium-99m generators to create the gamma emitting nuclear .

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  • OXIDE HALIDES OF MOLYBDENUM AND By COLTON* and ,

    chloride on hydrated molybdenum trioxide has recently been described1 and this reaction has now been extended to include the preparation of tungsten oxide tetrachloride All previous investigators have described molybdenum* 5 .

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  • Molybdenum - Periodic Table of the Elements

    History (Gr molybdos: lead) Before Scheele recognized molybdenite as a distinct ore of a new element in 1778, it was confused with graphite and lead ore The metal was prepared in impure form in 1782 by Hjelm Molybdenum does .

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  • Process for purifying molybdenum trioxide - GTE Products ,

    I claim: 1 A method for preparing ammonium molybdate having low impurities of iron from an impure concentrate of molybdenum trioxide consisting of contacting said concentrate with from about 085 parts to about 3 .

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  • Molybdenum - The Hendrix Group - Corrosion and Failure ,

    History (Gr molybdos, lead) Before Scheele recognized molybdenite as a distinct ore of a new element in 1778, it was confused with graphite and lead ore The metal was prepared as an impure form in 1782 by Hjelm Molybdenum .

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  • Molybdenum Oxide Purification Process - Molybdenum News ,

    The aqueous leached concentrate, after separation from the aqueous leach solution, is leached with an ammoniacal leach solution for converting the molybdenum trioxide constituent therein into soluble ammonium molybdate .

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  • Patents - Google

    A process for purifying an impure molybdenum oxide concentrate feed material to remove therefrom the predominant portion of contaminating metals present by autoclaving at an elevated temperature under an oxygen partial pressure .

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  • Molybdenum | Article about molybdenum by The Free Dictionary

    Molybdenum in the organism Molybdenum is always present in plants, animals, and humans as a trace element; it participates mainly in nitrogen metabolism Molybdenum is necessary for the activation of a number of oxidation .

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  • US Patent # 4,612,172 Purification of molybdenum ,

    A process is disclosed for removing potassium from a relatively impure molybdenum trioxide and forming a molybdenum compound of high purity The process involves first contacting the impure molybdenum , FIELD OF THE .

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  • Continuous process for purifying molybdenum - ResearchGate

    This patent describes a process for purifying molybdenum trioxide with a controlled content of potassium It comprises: first leaching impure molybdenum trioxide containing potassium as an impurity, in a liquid medium consisting .

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  • Facts About Molybdenum - Live Science: Scientific News ,

    Molybdenum is also recovered as a by-product of tungsten and copper mining operations It can be prepared from a powder made by the hydrogen reduction of ammonium molybdate or purified molybdic trioxide Uses of molybdenum .

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  • US Patent # 4,643,884 Purification of molybdenum trioxide ,

    A process is disclosed for removing potassium from relatively impure molybdenum trioxide The process involves contacting the impure molybdenum trioxide containing greater than about 600 weight parts , FIELD OF THE .

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  • Patent US3957946 - Molybdenum oxide purification process ,

    13 A process for producing a high purity molybdenum-containing product which comprises the steps of providing an impure concentrate of molybdenum oxide, reducing the average particle size of said concentrate to less than about .

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