Aluminum Company of America

Alcoa Inc.

Elkem As

Alcoa USA Corp.

Alcon, Inc.

Carnegie Mellon University

Elkem Asa

Gerald E Carkin

Jan H Van Linden

Joseph A Lepish

Mark Weaver

John R Smith

Edward P Patrick

Stephen F Baumann

A Victor Pajerski

William G Truckner

Robert A Cargnel

Ronald W Gunkel

David F Iwig

Judodine Nichols

Ronald Bachowski

Stephen Paul Sunday

Mikhail Gershenzon

Donald J Clements

Kyle A Crum

William R Sharkins

Ian Ross Harrison

Shannon I Parks

Steven C Orkis

Kevin S Papich

Larry G McKinney

Philip C Scheble

Frank P Swigon

Stephen J Rennekamp

David H DeYoung

David I Yun

Aaron J Becker

G Edward Graddy, Jr

Richard J Fruehan

Don R Careatti

Stephen C Libby

William H Hoffman

Yun Li

Ronald M Dunlap, Sr

Donald L Stewart, Jr

R Lee Troup

Daniel Yerushalmi

Marshall J Bruno

Orhan D Gencaga

Deniz Gencaga

John P Palko

William W Hoffman

Jarie-Erland Herstad

John J Palko

Orhan Deniz Gencaga

Shannon L Parks

Stephen P Sunday

Mark L Weaver

Generally, the instant disclosure relates to fertilizer compositions and methods of making and using the same. More specifically, the instant disclosure relates to blast suppressant and/or blast resistant ammonium nitrate fertilizer compositions, as well as methods of making and using the same.

Fertilizer compositions and methods of making and using the same

A method of recovering aluminum is provided. An alloy melt having AlCand aluminum is provided. This mixture is cooled and then a sufficient amount of a finely dispersed gas is added to the alloy melt at a temperature of about 700&#xb0; C. to about 900&#xb0; C. The aluminum recovered is a decarbonized carbothermically produced aluminum where the step of adding a sufficient amount of the finely dispersed gas effects separation of the aluminum from the AlCprecipitates by flotation, resulting in two phases with the AlCprecipitates being the upper layer and the decarbonized aluminum being the lower layer. The aluminum is then recovered from the AlCprecipitates through decanting.

Decarbonization process for carbothermically produced aluminum

In an embodiment, an electrode holder assembly () includes a current delivery base () having an interface () sufficiently designed to distribute an electrical current; a buss plate () sufficiently designed to provide the electrical current to the current delivery base (); a shoe-ring assembly having: a plurality of electrical shoes (), wherein the electrical current from the current delivery base () is distributed to the plurality of electrical shoes () for distribution to an electrode (); a plurality of dual stroke cylinders (); and a mounting ring (); and a hydraulic assembly () including a grip ring () having an opening sufficiently designed to engage an outer surface of the electrode (); a pressurizing cylinder () sufficiently designed to constrict and relax the grip ring (); and at least one dual stroke cylinder () sufficiently designed to control horizontal movement of the grip ring () and the electrode ().

Electrode holder assembly and furnace comprising same

Apparatus, systems and methods for carbothermically producing aluminum are disclosed. The systems may include a reactor and an electrical supply. The reactor may include a plurality of side-entering electrodes and a top-entering electrode. The electrical supply may be operable to supply multiphase current to the side-entering electrodes and/or the top-entering electrodes. The electrodes may be in communication with a molten bath of the reactor, and the multiphase current supplied thereto may be passed through the bath to heat the reactor. The amount of current supplied to various electrode sets may be adjusted to facilitate tailored heating of the molten bath.

Carbothermic aluminum production apparatus, systems and methods

In a method for recovering Al from an off-gas () produced during carbothermic reduction of aluminum utilizing at least one smelter (), the off-gas () is directed to an enclosed reactor () which is fed a supply of wood charcoal () having a porosity of from about 50 vol. % to 85 vol. % and an average pore diameter of from about 0.05 &#x3bc;m to about 2.00 &#x3bc;m, where the wood charcoal () contacts the off-gas () to produce at least AlC(), which is passed back to the smelter ().

Method using selected carbons to react with Al2O and Al vapors in the carbothermic production of aluminum

This invention relates to the use of bubble-driven flow to enhance the dissolution and distribution of alumina in an aluminum electrolysis cell operating with inert anodes. By harnessing the driving force of bubbles rising along the sides of a sloped anode to induce circulation in a cell and by using a group of anodes to amplify the effect, alumina distribution can be maintained close to or at saturation without formation of muck/sludge. Alumina fed through point feeders at specific locations can be distributed throughout the entire cell rather than sinking to the bottom of the cell below the feed location. For a given circulation pattern, feeder locations can be optimized.

Alumina distribution in electrolysis cells including inert anodes using bubble-driven bath circulation

A composite metallurgical product includes a roll cast aluminum alloy core and a filler material bonded on the core. Assemblies joined by filler material are formed from this product by heating to flow the filler material into joints and subsequent solidification of the filler material in the joints. The composite product is made in several ways, including lamination at roll caster rolls, and lamination or thermal spraying at the exit side of a roll caster. The invention additionally provides for an angulation rolling method for varying percent of cladding on the composite, and a high-manganese aluminum alloy useful as core material in brazing sheet clad with aluminum-silicon brazing alloy.

Method of continuously casting composite strip

Clad metallurgical products and methods of manufacture

A process for the recovery of metallic aluminum, mixtures of salts, and an aluminum oxide-metallic aluminum product from secondary aluminum dross. The process includes treating the dross with leach water to dissolve the salt content. Magnesium chloride is preferably added to the leach water to maintain the pH in the range of about 7-8.5, thereby reducing ammonia production in the treating step and enhancing recovery of metallic aluminum.

Process for the recovery of values from secondary aluminum dross

A container for a material, said container having a liner comprised of an equilibrated reaction product of the material. Preferably, the material is a molten aluminum-lithium alloy and the reaction product consists essentially of lithium aluminate. A method of making the container comprises shaping a substance into a vessel, said substance having sufficient porosity to react with the material and form a non-wetting reaction product without spalling; and introducing the material to the vessel. A method of making a container liner by applying a substance to the container inner surface and introducing the alloy to the inner surface is also disclosed.

Method of making a container

In a system for treating and managing hot aluminum dross, the dross is compacted and delivered by a pair of 'squeeze' rolls in a continuous semi-solid sheet, readily broken up for further treatment or disposal. The rolls may be cooled or heated as required to condition the dross appropriately, for storage or immediate further treatment. Ribs on the rolls and/or a stepped 'break' chute downstream of the rolls may be used to break the compacted dross into 'patties' for convenient handling.

Metal recovery from dross

Growing community of inventors

Tarentum, PA, United States of America

Gerald E Carkin