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RHENIUM AND MOLYBDENUM SEPARATION FROM SULFIDE

A process for the recovery of molybdenum and rhenium values from sulfide ores containing said molybdenum and rhenium and other metallic impurities, said process comprising: 2. A process according to claim 1 wherein said alkali metal carbonate is sodium carbonate. 3. A process according to claim 2 wherein 3.5 moles of sodium carbonate are used

Recovery of rhenium from molybdenum and copper

May 01, 2014 Rhenium is recovered during pyrometallurgical processing of molybdenum sulfide and copper sulfide ores; the traditional technology involves removing rhenium(VII) oxide, Re 2 O 7, from the sulfurous gas phase generated during multiple hearth roasting (in molybdenum processing) and smelting (in copper processing).A new technology platform called Looping Sulfide Oxidation (LSO) has been

rhenium sulfide molybdenum piercarlofoddis.fr

The crystal structure of molybdenum disulfide (MoS2) takes the form of a hexagonal plane of S atoms on Rhenium Disulfide Powder.Electrolytic Extraction of Copper, Molybdenum and Rhenium, 20 Jul 2017 The second question pertains to the fate of accessory metal sulfides such as molybdenum or rhenium during the electrolysis of copper sulfide

rhenium sulfide molybdenum apshetnoorderlicht.nl

rhenium sulfide molybdenum. Commercial rhenium in the US today is obtained from molybdenum roaster-flue dusts obtained from copper-sulfide ores mined in the vicinity of Miami, Arizona and elsewhere in Arizona and in Utah Some molybdenum contains from 0002% to 02% rhenium More than 150,000 troy ounces of rhenium are now being produced yearly in

Molybdenum Rhenium Oxidation

Oxidative Leaching Of Molybdenum-rhenium Sulfide Ores And/or A method for leaching molybdenum and/or rhenium from a sulfide ore and/or concentrate containing such, the method comprising the steps of: Exposing the ore and/or >> Get Price

Electrolytic Extraction of Copper, Molybdenum and Rhenium

Jul 20, 2017 Molybdenum and rhenium are critical elements with low earth-abundance and are mainly obtained as by-products of copper sulfide ores mining,. Over 90% of the world's primary copper in the earth crust is present in the form of sulfide minerals, such as chalcocite (Cu 2 S), chalcopyrite (CuFeS 2 ), and bornite (Cu 5 FeS 4 ) [9] .

Molybdenite: Mineral properties, uses, geologic occurrence

Molybdenum sulfide, MoS 2: Crystal System: Hexagonal: Uses: The primary ore of molybdenum. An important ore of rhenium. A solid lubricant for metal-to-metal sliding surfaces. Physical Properties of Molybdenite. Molybdenite has physical properties that often cause it to be confused with graphite.

rhenium sulfide molybdenum piercarlofoddis.fr

The crystal structure of molybdenum disulfide (MoS2) takes the form of a hexagonal plane of S atoms on Rhenium Disulfide Powder.Electrolytic Extraction of Copper, Molybdenum and Rhenium, 20 Jul 2017 The second question pertains to the fate of accessory metal sulfides such as molybdenum or rhenium during the electrolysis of copper sulfide

Rhenium Re (Element) PubChem

Commercial rhenium in the U.S. today is obtained from molybdenum roaster-flue dusts obtained from copper-sulfide ores mined in the vicinity of Miami, Arizona and elsewhere in Arizona and in Utah. Some molybdenum contains from 0.002% to 0.2% rhenium. More than 150,000 troy ounces of rhenium are now being produced yearly in the United States.

A rhenium-molybdenum-copper sulfide from the

Eur. J. Mineral. 1993, 5, 1227-1233 SHORTNOTE A rhenium-molybdenum-copper sulfide from the Lukkulaisvaara layered intrusion, northern Karelia, Russia

Process for the recovery of molybdenum and rhenium from

Mar 23, 1982 Rhenium sulfide is associated with molybdenum in the ores. In order to recover the valuable molybdenum it is necessary to mine large amounts of the host rock, crush and grind the rock to very small particles, float the molybdenum to separate it from the host rock gangue and to separate if from contaminating minerals, and finally to roast the

Molybdenum Rhenium Oxidation

Oxidative Leaching Of Molybdenum-rhenium Sulfide Ores And/or A method for leaching molybdenum and/or rhenium from a sulfide ore and/or concentrate containing such, the method comprising the steps of: Exposing the ore and/or >> Get Price

(PDF) A rhenium-molybdenum-copper sulfide from the

A rhenium-molybdenum-copper sulfide from the Lukkulaisvaara layered intrusion, northern Karelia, Russia Article (PDF Available) in European Journal of Mineralogy 5(6):1227-1233 · January 1993

Rhenium USGS

Rhenium’s other major application is in platinum-rhenium catalysts used in petroleum refining.Rhenium rarely occurs as a native element or as its own sulfide mineral; most rhenium is present as a substitute for molybdenum in molybdenite. Annual world mine production of rhenium is about 50 metric tons.

Facts About Rhenium Live Science

Aug 21, 2013 Commercial rhenium is obtained from molybdenum roaster-flue dusts found in copper-sulfide ores. However, rhenium does not occur freely in nature or as a compound in mineral ores. Molybdenum

Rhenium Wikipedia

Commercial rhenium is extracted from molybdenum roaster-flue gas obtained from copper-sulfide ores. Some molybdenum ores contain 0.001% to 0.2% rhenium. [27] [35] Rhenium(VII) oxide and perrhenic acid readily dissolve in water; they are leached from flue dusts and gasses and extracted by precipitating with potassium or ammonium chloride as the

US4321089A Process for the recovery of molybdenum and

molybdenum rhenium sulfide chloride heated Prior art date 1980-06-11 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired Lifetime Application number US06/158,449 Inventor Paul R. Kruesi Veryl H

The Metal Profile for Molybdenum

Jan 19, 2020 The resulting molybdenum sulfide (MoS2) is then roasted at between 500-600 C°(932-1112 F°) to produce roasted molybdenite concentrate (MoO3, also referred to as technical molybdenum concentrate). Roasted molybdenum concentrate contains a minimum of 57% molybdenum (and less than 0.1% sulfur).

Molybdenite: Mineral properties, uses, geologic occurrence

Molybdenum sulfide, MoS 2: Crystal System: Hexagonal: Uses: The primary ore of molybdenum. An important ore of rhenium. A solid lubricant for metal-to-metal sliding surfaces. Physical Properties of Molybdenite. Molybdenite has physical properties that often cause it to be confused with graphite.

US4321089A Process for the recovery of molybdenum and

molybdenum rhenium sulfide chloride heated Prior art date 1980-06-11 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired Lifetime Application number US06/158,449 Inventor Paul R. Kruesi Veryl H

Chemical vapour deposition of rhenium disulfide and

AA-CVD was used to deposit the rhenium or molybdenum sulfide thin films by employing [Re(μ-S i Pr) 3 (S i Pr) 6] (1) or [Mo(S 2 CNEt 2) 4] (2), at concentrations of 0.1 mmol in 40 mL of THF at 475 °C.

Process for the recovery of molybdenum and rhenium from

Mar 23, 1982 Rhenium sulfide is associated with molybdenum in the ores. In order to recover the valuable molybdenum it is necessary to mine large amounts of the host rock, crush and grind the rock to very small particles, float the molybdenum to separate it from the host rock gangue and to separate if from contaminating minerals, and finally to roast the

(PDF) A rhenium-molybdenum-copper sulfide from the

A rhenium-molybdenum-copper sulfide from the Lukkulaisvaara layered intrusion, northern Karelia, Russia Article (PDF Available) in European Journal of Mineralogy 5(6):1227-1233 · January 1993

A rhenium-molybdenum-copper sulfide from the

A rhenium-molybdenum-copper sulfide from the Lukkulaisvaara layered intrusion, northern Karelia, Russia; A rhenium-molybdenum-copper sulfide from the

Overview Of The Refractory Metal Rhenium

Most of the rhenium is only associated with other metal minerals such as molybdenum, copper, lead, zinc, platinum, niobium, etc. in a sparsely dispersed state.So far, only a small amount of bismuth ore (ReS2) and copper bismuth sulfide (CuReS4) have been found, and the reserves are very small.

Structure of Rhenium Disulfide Inorganic Chemistry

Layered rhenium sulfide on free-standing three-dimensional electrodes is highly catalytic for the hydrogen evolution reaction: Experimental and theoretical study. Chemical vapour deposition of rhenium disulfide and rhenium-doped molybdenum disulfide thin films using single-source precursors. Journal of Materials Chemistry C 2016, 4 (12)

The Precipitation of Rhenium Sulfide from Ammoniacal

The determination of rhenium I. Qualitative. Industrial & Engineering Chemistry Analytical Edition 1936, 8 (1),11-15. DOI: 10.1021/ac50099a005. Boris N. Afanasiev.

Why Molybdenum Is an Essential Nutrient

May 06, 2017 Molybdenum is an essential mineral in the body, just like iron and magnesium. It is present in soil and transferred into your diet when you consume plants,

The Mineral Gallery Sulfides Class

The Sulfide Class minerals comprise an economically important class of minerals. Most major ores of important metals such as copper, lead and silver are sulfides. Strong generalities exist in this class. The majority of sulfides are metallic, opaque, generally sectile, soft to average in hardness and they have high densities, black or dark-colored streaks, and an igneous origin.

Review Molybdenum Recovery from Mineral Raw Materials

group, from which only molybdenum is recovered. The sulfide ores belong to the second group, from which molybdenum, sulfur, rhenium, copper and other elements can be recovered. Table 1 shows technological processes, which are used or tested in industry for molybdenum production from raw materials. * Corresponding author. E-mail: [email protected]

Ida Noddack and the missing elements Feature RSC Education

The content of rhenium in the molybdenite concentrate is usually 500-700 ppm, and the content of molybdenum in the copper concentrate is about 0.05 per cent from which it is separated by flotation. The copper concentrate is normally obtained by flotation of copper sulfide minerals from

NORTH AMERICA Freeport-McMoRan

Molybdenum concentrate, gold and silver are also produced by certain of FCX’s North America copper mines. FCX’s Lone Star project located near its Safford operation in Arizona is substantially complete and on track to produce approximately 200 million pounds of