Determination of Rhenium in Molybdenite Minerals

Hiskey, C. F.; Meloche, V. W.

doi:10.1021/ac50149a002

Cited by 14 publications

(4 citation statements)

References 9 publications

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“…Gravimetric determinations of perrhenate as the nitron (4) or tetraphenylarsonium (16) salts are applicable only to materials of high rhenium content because of the significant solubility of these precipitation forms. The more sensitive, colorimetric measurement of rhenium as a thiocyanate complex has been extensively investigated (7,8,10), but is subject to several serious limitations. The color formation is a function of time, temperature, and reagent concentrations; it is very difficult to provide for the quantitative exclusion of molybdenum which is a serious interference.…”

Section: Inmentioning

confidence: 99%

Spectrometric Determination of Rhenium and Its Separation from Molybdenum

Meyer¹,

Rulfs²

1955

Anal. Chem.

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Section: Inmentioning

confidence: 99%

Spectrometric Determination of Rhenium and Its Separation from Molybdenum

Meyer¹,

Rulfs²

1955

Anal. Chem.

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“…Given the difficulties associated with the selection of equipment and the difficulties in working in extreme conditions, it is nec-essary to find more soft conditions for the dispersal of molybdenum and rhenium. Previous work indicates that rhenium is distilled from solutions of high boiling acids [11,12].…”

Section: Evidence Of the Chemical Identity Of Technetium And Rheniummentioning

confidence: 99%

Study of the Possibility of Distillation of Technetium From Molybdenum Solutions on Example of Rhenium

Azarov¹,

Bocharov²,

Stoyanov³

2020

Problems of Atomic Science and Technology

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“…* The rhenium content of molybdenite from other New Mexico deposits is not known. * Determinations by Hiskey and Meloche (1940) give the rhenium content of molybdenite from Santa Rita as 0.00175 per cent (one sample) and from Questa molybdenum as 0.00088 per cent (average of five samples). Their analyses from other deposits also are systematically lower than those of most workers.…”

Section: Rhenium In Molybdenitementioning

confidence: 99%

Molybdenum resources of New Mexico

Schilling¹

1965

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Molybdenum minerals are widely distributed in NM; 74 occurrences have been reported. Molybdenite is the most common molybdenum mineral, as it is throughout the world; wulfenite, jordisite, ferrimolybdenite, ilsemannite, powellite, and molybdian scheelite also are found in the state.There are seven types of molybdenum deposits in NM: 1) molybdenite in pegmatite dikes, 2) molybdenite with or without other sulfide minerals in quartz veins, 3) molybdenite as disseminated grains and in quartz-stockwork veinlets in porphyry-copper deposits, 4) molybdenite as disseminated grains and in quartz-stockwork veinlets in cooper-poor porphyry-molybdenum deposits, 5) powellite, molybdenite, and/or molybdian scheelite in contact-tungsten deposits, 6) wulfenite in oxidized lead bodies, and 7) jordisite in bedded uranium deposits.Ferrimolybdenite is present in many of the occurrences as an oxidation product of molybdenite; ilsemannite is found in the uranium deposits as an oxidation product of jordisite. Deposits of types 1-5 in nearly all instances are closely associated with granitic intrusive rocks. Nearly all the molybdenum deposits elsewhere in the world are of these same seven types and, for the world as a whole, occur in roughly similar proportions. The ore subtype that is not found in NM but is important elsewhere is the tin and/or tungsten-bearing quartz veins common in Asia.Although production was small, NM was one of the major sources of molybdenum during the early part of this century when wulfenite was mined from the Stevenson-Bennett mine, Dona Ana County, and the Palomas Gap and Hillsboro mining districts, Sierra County. The largest, and presently the only, molybdenum producer in NM is the Santa Rita porphyry-copper mine, Grant County, from which more than 32 million pounds of molybdenite have been recovered as a by-product of copper mining. The second largest producer was the Questa molybdenum mine, Taos County, which yielded more than 20 million pounds of molybdenite from quartz veins. Although the high-grade veins have been mined out, a large low-grade porphyry-molybdenum deposit associated with the veins is now being readied for large-scale mining.Because of its versatility and abundance, the demand for molybdenum will continue to increase rapidly. NM will remain an important producer. The Santa Rita and Questa deposits both have large reserves, and the possibility of finding other minable molybdenum deposits in the state is good. The uranium deposits of the Grants area are another potentially important source of the metal.

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Determination of Rhenium in Molybdenite Minerals

Cited by 14 publications

References 9 publications

Spectrometric Determination of Rhenium and Its Separation from Molybdenum

Spectrometric Determination of Rhenium and Its Separation from Molybdenum

Study of the Possibility of Distillation of Technetium From Molybdenum Solutions on Example of Rhenium

Molybdenum resources of New Mexico

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