Heap Patents (Class 202/210)
  • Patent number: 8357284
    Abstract: A metal film-forming method is capable of forming a metal film on a surface of a base metal film, formed on a surface of a substrate, with sufficient adhesion to the base metal film even when a natural oxide film is formed on the surface of the base metal film. The metal film-forming method includes: preparing a substrate having a base metal film formed on a surface; and carrying out electroplating of the substrate using the base metal film as a cathode and another metal as an anode while immersing the substrate in a solution containing a metal complex and a reducing material, both dissolved in a solvent, to form a metal film, deriving from a metal contained in the metal complex, on the surface of the base metal film.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: January 22, 2013
    Assignee: Ebara Corporation
    Inventors: Akira Susaki, Tsutomu Nakada, Hideki Tateishi
  • Patent number: 5834294
    Abstract: A hydrometallurgical process for the recovery of one or more metal values from a metal ore material in the presence of clays and/or fines material said ore material being comprised of one or more metal values and a matrix material having a sulfur content wherein the sulfur is present in an oxidation-reduction state of zero or less. The process comprises forming particulates from particles of said ore material, particles comprising said clays and/or fines material, an acid-resistant polymeric agglomeration aid and an inoculate comprising bacteria capable of at least partially oxidizing the sulfur content; forming a heap of said particulates; biooxidizing the sulfur content and recovering those one or more metal values.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: November 10, 1998
    Assignees: Newmont Gold Co., Newmont Mining Corporation
    Inventors: James A. Brierley, David L. Hill
  • Patent number: 4038154
    Abstract: A furnace and process for carrying out the carbonizing and/or activating of charcoal and similar operations includes vent means, which may be in the general shape of one or more elongated chambers of tunnels, that acts in combination with air admission means to determine the location, size, shape, and temperature of one or more hot zones within a pile of particulate combustible material. The vent means acts to (1) expedite the venting of gases generated in the mass of particulate material being treated, (2) collect a portion of the released gases in one or more chambers or zones, and (3) provide a space to burn any combustible gases at substantially controlled temperatures and in heat transfer relationship with the particulate mass.
    Type: Grant
    Filed: October 3, 1973
    Date of Patent: July 26, 1977
    Assignee: Barnebey-Cheney Co.
    Inventor: Herbert L. Barnebey