Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Refractory surfaces for alumina reduction cell cathodes and methods for providing such surfaces
T993002 Refractory surfaces for alumina reduction cell cathodes and methods for providing such surfaces
Patent Drawings:Drawing: T993002-2    Drawing: T993002-3    Drawing: T993002-4    
« 1 »

(3 images)

Inventor: Kaplan, et al.
Date Issued: April 1, 1980
Application: 06/043,242
Filed: May 29, 1979
Inventors: Bryce; Jerry H. (Lawrenceburg, TN)
Johnston; Thomas J. (Rogersville, AL)
Kaplan; Howard I. (Florence, AL)
McMinn; Curtis J. (Florence, AL)
Pottinger; Jan M. (Florence, AL)
Richards; Nolan E. (Florence, AL)
Tabereaux; Alton T. (Sheffield, AL)
Willett; John T. (Florence, AL)
Assignee: Reynolds Metals Company (Richmond, VA)
Primary Examiner:
Assistant Examiner:
Attorney Or Agent:
U.S. Class: 204/247.3; 266/283
Field Of Search:
International Class:
U.S Patent Documents:
Foreign Patent Documents:
Other References:









Abstract: The disclosure pertains to alumina reduction cells which employ refractory materials to provide a molten-aluminum contacting surface for the cathode. Specifically, configurations and methods are described according to which refractory hard metal tiles are secured to a carbonaceous substrate to produce composites suitable for constructing a molten-aluminum contacting surface for the use stated. The tiles are wettable by molten aluminum and are inert chemically to the reduction cell electrolyte. Configurations for coupling and interlocking such tiles are also described. When the tiles are coupled or interlocked in the manner taught, it is possible to achieve a built-up refractory surface which remains chemically and mechanically stable in a reduction cell environment. The refractory hard metal materials used are included among the borides, nitrides and carbides of Group IV, V, and VI of the Periodic System, particularly compounds of titanium and zirconium, and especially titanium-diboride and titanium-diboride aluminum-nitride mixtures.
Claim:
Description:
 
 
  Recently Added Patents
Computer system and volume migration control method using the same
Method and apparatus for connecting signal lines of multiple layers to certain contacts while preventing connections with other contacts
Display panel and gate driving circuit and driving method for gate driving circuit
Vehicle wheel
Optimizing federated and ETL'd databases with considerations of specialized data structures within an environment having multidimensional constraint
Stacked thin-film superlattice thermoelectric devices
Geographically self-labeling access points
  Randomly Featured Patents
Headgear for cervical traction system
Fiber optic connector mechanical interface converter
Comminuting apparatus and method of making same
Actuating device for automobiles
Method for depositing amorphous silicon thin films onto large area glass substrates by chemical vapor deposition at high deposition rates
Imino alkylimino phosphonates and method for preparing and using same
Removal of potassium chloride from solvents
Television receiver
Method to sequence changes for IP network configuration
Cartridge bearing assembly for volumetric feeder