molybdenum rhenium coppers

The purpose of this study was to determine the specific features of copper and/or molybdenum accumulation rates in animals against the background of various tungsten and rhenium content levels in the environment and animal feeds, as well …

Semantic Scholar extracted view of "Molybdenum and rhenium recovery from porphyry coppers" by A. Sutulov

The effect of the rhenium addition to molybdenum in powder metallurgy sheet product near and exceeding the saturation point of rhenium in molybdenum was investigated. Alloys of 41,44.5, 47.5 and 51% rhenium were produced to examine the mechanical properties at room temperature, 1073K, and 1473K.

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ABSTRACT. For the first time, χ-Al 2 O 3 was investigated as a sorbent for the simultaneous separation of copper and molybdenum from rhenium. This work finds the optimal conditions of the process. In an acetate buffer solution with a pH of 5.5 under the action of ultrasound for 30 min, the Langmuir adsorption capacity for copper and …

In an acetate buffer solution with a pH of 5.5 under the action of ultrasound for 30 min, the Langmuir adsorption capacity for copper and molybdenum on this sorbent was 46 mg⋅g⁻¹ and 44 mg⋅ ...

1 INTRODUCTION. Molybdenum-rhenium (Mo-Re) alloys have stable body-centered cubic (BCC) structure at a large temperature range, which makes Mo alloys to be widely applied in high temperature environment. 1, 2 However, high ductile-to-brittle transition temperature (DBTT) leads to a poor ductility and processing ability at room …

Rhenium Alloys specializes in a variety of materials including pure rhenium, pure molybdenum, and their alloys ( molybdenum-rhenium, tungsten-rhenium ), pure tungsten, and variety of tungsten-copper …

Rhenium is a valuable rare metal that is primarily captured as a by-product during the processing of copper and molybdenum. Its complex capture pathway and low annual production (< 100 tons per year) mean that there is limited information about how current capture compares with the amounts of rhenium geologically present in mined …

Abstract. A thermodynamic optimization of the Mo–Re system by the Calphad method is proposed, taking into account new experimental data obtained in this work. According to recent crystal chemistry work, the and Frank–Kasper phases were modeled using two independent sublattices of variable occupation. This was made possible by …

2005. Optimizing productivity, parts quality, reducing production costs are objectives that companies must perpetually satisfy to remain competitive. An efficient solution, but complex to implement,…. Expand. 1 Excerpt. Semantic Scholar extracted view of "Manufacture and properties of molybdenum-rhenium alloys" by D. Freund.

This is a chart of the most common charges for atoms of the chemical elements. You can use this chart to predict whether or not an atom can bond with another atom.The charge on an atom is related to its valence electrons or oxidation state.An atom of an element is most stable when its outer electron shell is completely filled or half-filled.

Authors: Krasnobaeva, N; Nedyalkova, N Publication Date: Thu Jan 01 00:00:00 EST 1970 Research Org.: Originating Research Org. not identified OSTI Identifier: 4070029

All Molybdenum-Rhenium alloy models were constructed using a body-centered cubic structure as the unit cell, and a 2 × 2 × 2 SQS supercell was built. The compositions of the supercell were Mo 1−x Re x, where x takes the values of 0.0625, 0.125, 0.1875, 0.25, 0.3125, 0.375, 0.4375, and 0.5. The positions of the rhenium atoms were …

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 concentrations was studied. It is found that the NH2–CPT exhibits high …

Molybdenite is the world's principal source of rhenium (Re), a critical element in multiple high-tech applications. However, the Re contents in molybdenite vary by orders of magnitude on scales ranging from single grains to whole deposits. In order to better understand the systematics of this variation and what geochemical factors control …

Rhenium is recovered during pyrometallurgical processing of molybdenum sulfide and copper sulfide ores; the traditional technology involves removing …

Molybdenum--rhenium (3/1) | Mo3Re | CID 71413951 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological ...

Electrolytic Extraction of Copper, Molybdenum and Rhenium from Molten Sulfide Electrolyte @article{Sahu2017ElectrolyticEO, title={Electrolytic Extraction of …

Meanwhile, it was provide an effective approach to the selectivity for molybdenum and rhenium in the presence of excess of other metal ions. 2. Experimental2.1. Materials. Rhenium and molybdenum stock solutions were prepared by dissolving NH 4 ReO 4 and (NH 4) 6 Mo 7 O 24 ·4H 2 O, respectively, in hydrochloric …

Molybdenum-Rhenium is a new biomaterial to the orthopedic market that is exciting because of its biocompatibility, MRI and CT compatibility, and corrosion resistance. Its combination of high tensile strength and ductility allows implanted devices to be designed with a low profile. It has excellent osteo-integration properties and very low ...

Rhenium is used as a catalyst for numerous reactions and is also added to high-temperature superalloys finding applications in jet engines [5], [6]. Molybdenum …

Molybdenum and rhenium are critical elements with low earth-abundance and are mainly obtained as by-products of copper sulfide ores mining [7, 8]. Over 90% of the world's primary copper in the earth crust is present in the form of sulfide minerals, such as chalcocite (Cu2S), chalcopyrite (CuFeS2), and bornite (Cu5FeS4) [9].

Molybdenum and rhenium are critical elements with low earth-abundance and are mainly obtained as by-products of copper sulfide ores mining [7], [8]. 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].

Rhenium is recovered during pyrometallurgical processing of molybdenum sulfide and copper sulfide ores; the traditional technology involves removing rhenium …

Batches of molybdenum – 14 wt% rhenium – 1 wt% La 2 O 3 (ODS Mo–14Re) and a molybdenum – 7 wt% rhenium – 1 wt% La 2 O 3 (ODS Mo–7Re) composition were prepared using a proprietary powder metallurgy procedure. Each new composition was prepared by adding the desired amount of rhenium to ODS Mo …

Yesterday's Pioneer, Today's Leader. rhenium TF: 888-RHENIUM (888-743-6486) PH: 440-365-7388 FX: 888-366-9830 Molybdenum-Rhenium Alloy, Annealed | MECHANICAL AND PHYSICAL PROPERTIES Metric English Physical Properties Density 13.5 g/cc 0.488 lb/in³ Mechanical Properties Tensile Strength, Ultimate 1180 MPa 171000 …

Molybdenum Rhenium is one of numerous metal alloys sold by American Elements under the trade name AE Alloys™. Generally immediately available in most volumes, AE Alloys™ are available as bar, ingot, ribbon, wire, shot, sheet, and foil. Ultra high purity and high purity forms also include metal powder, submicron powder and nanoscale, targets ...

BACKGROUND: Rhenium is a rare and valuable metal coexisting with molybdenum in molybdenite and sulfide copper ores and is hard to separate. Methods such as solvent extraction, ion exchange, adsorption, precipitation, etc. have been used to separate and purify Re(VII), and resin ion exchange has been widely investigated and …