H.c. Starck Gmbh

Other

Orchard Material Technology, LLC

Lawrence F McHugh

Leonid Natan Shekhter

Prabhat Kumar

Paul B Queneau

Gerhard Wötting

Richard Wu

Robert W Balliett

Wolfgang Kummer

David Meendering

Daniel G Gribbin

Esra Cankaya-Yalcin

John E Litz

Rong-Chien Wu

Joseph D Lessard

Richard Nicholson

Yuri V Blagoveshchenskiy

Harry H K Nauta

Copper is produced by a looping oxidizing process wherein oxidation of copper sulfide concentrate to molten blister copper by conversion with copper oxides (and optionally oxygen from air) in a one step, molten bath operation to produce molten blister copper, iron oxide slag, and rich SOoff gas. The blister copper is treated in an anode furnace to reduce the iron content and oxidize residual sulfur, and prepare it for either electrolysis or reoxidation.

Production of copper via looping oxidation process

Recovery of a metal from scrap materials or other source materials containing two or more metals or other materials by iodization of the materials or parts of them to create multiple metal iodides of respective metals, separating the iodides and dissociating at least one of the iodides to recover its metal component.

Retrieval of high value refractory metals from alloys and mixtures

The invention relates to high purity MoOpowder by reduction of ammonium molybdate or molybdenum trioxide using hydrogen as the reducing agent in a rotary or boat furnace. Consolidation of the powder by press/sintering, hot pressing, and/or HIP is used to make discs, slabs, or plates, which are used as sputtering targets. The MoOdisc, slab, or plate form is sputtered on a substrate using a suitable sputtering method or other physical means to provide a thin film having a desired film thickness. The thin films have properties such as electrical, optical, surface roughness, and uniformity comparable or superior to those of indium-tin oxide (ITO) and zinc-doped ITO in terms of transparency, conductivity, work function, uniformity, and surface roughness. The MoOand MoOcontaining thin films can be used in organic light-emitting diodes (OLED), liquid crystal display (LCD), plasma display panel (PDP), field emission display (FED), thin film solar cell, low resistivity ohmic contacts, and other electronic and semiconductor devices.

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High purity ammonium dimolybdate or molybdenum oxide is produced by the pressure oxidation of low grade molybdenite concentrates or molybdenum intermediates. The process entails nearly complete oxidation of the sulfide minerals while optimizing the process chemistry and autoclave conditions to solubilize as little of the molybdenum values as possible. The autoclave discharge is then subjected to a leaching step, either an alkaline leach or ammonium leach process, before or after a liquid/solid separation step . The solution is then subjected to (a) filtration , solvent extraction , crystallization , and calcination or (b) filtration , crystallization , and calcination to produce a product suitable for chemical-grade molybdenum oxide

Production of pure molybdenum oxide from low grade molybdeniteconcentrates

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North Andover, MA, United States of America

Lawrence F McHugh