Patents by Inventor Kenneth B. Kimble

Kenneth B. Kimble has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4857179
    Abstract: A process for the recovery of minerals from an ore or concentrate containing the same wherein the minerals are recovered in a froth from an aqueous pulp containing the ore or concentrate and wherein one or more mineral flotation agents are employed in the aqueous pulp to control the type of minerals in the froth is provided. The mineral flotation agents used in carrying out the process comprise compounds formed by the addition of hydrogen sulfide to dicyclopentadiene.
    Type: Grant
    Filed: December 19, 1988
    Date of Patent: August 15, 1989
    Assignee: Phillips Petroleum Company
    Inventors: Kenneth B. Kimble, Gary D. Macdonell, Harold W. Mark
  • Patent number: 4747940
    Abstract: Tri-alkali metal di(carboxyalkyl) dithiocarbamates and triammonium-di(carboxyalkyl) dithiocarbamates which can be characterized by the formula ##STR1## wherein R and R' can be the same or different and are selected from the group consisting of alkylene radicals, preferably alkylene radicals each preferably having from 1 to 12 carbon atoms, and wherein M is selected from the group consisting of alkali metal atoms and ammonium; their use as ore flotation depressants; and a process for making these novel compositions are disclosed.
    Type: Grant
    Filed: March 30, 1987
    Date of Patent: May 31, 1988
    Assignee: Phillips Petroleum Company
    Inventors: Kenneth B. Kimble, Clarence R. Bresson, Harold W. Mark
  • Patent number: 4650568
    Abstract: Polyhydroxytrithiocarbonates can be used as depressants in ore flotation.
    Type: Grant
    Filed: March 22, 1985
    Date of Patent: March 17, 1987
    Assignee: Phillips Petroleum Company
    Inventors: Kenneth B. Kimble, Clarence R. Bresson, Harold W. Mark
  • Patent number: 4619760
    Abstract: Process for the preparation of ore flotation collectors is disclosed comprising reacting an alkali metal salt of a 2-mercaptobenzimidazole with carbon disulfide. Also disclosed is process for recovery of minerals by flotation employing the novel ore flotation collectors prepared as described above.
    Type: Grant
    Filed: May 2, 1985
    Date of Patent: October 28, 1986
    Assignee: Phillips Petroleum Company
    Inventors: Kenneth B. Kimble, Clarence R. Bresson, Harold W. Mark
  • Patent number: 4601818
    Abstract: Mercaptobenzothiazoles are usually employed together with hydrocarbyl trithiocarbonate in flotation processes for the recovery of copper values from an ore containing same.
    Type: Grant
    Filed: March 30, 1983
    Date of Patent: July 22, 1986
    Assignee: Phillips Petroleum Company
    Inventors: Clarence R. Bresson, Kenneth B. Kimble
  • Patent number: 4595538
    Abstract: Tri-alkali metal di(carboxyalkyl) dithiocarbamates and triammonium-di(carboxyalkyl) dithiocarbamates which can be characterized by the formula ##STR1## wherein R and R' can be the same or different and are selected from the group consisting of alkylene radicals, preferably alkylene radicals each preferably having from 1 to 12 carbon atoms, and wherein M is selected from the group consisting of alkali metal atoms and ammonium; their use as ore flotation depressants; and a process for making these novel compositions are disclosed.
    Type: Grant
    Filed: March 4, 1985
    Date of Patent: June 17, 1986
    Assignee: Phillips Petroleum Company
    Inventors: Kenneth B. Kimble, Clarence R. Bresson, Harold W. Mark
  • Patent number: 4561971
    Abstract: S-Carboalkoxy-S'-alkyl trithiocarbonate, S-carboalkenoxy-S'-alkyl trithiocarbonate, S-carboalkenoxy-S'-alkenyl trithiocarbonate and S-carboalkoxy-S'-alkenyl trithiocarbonate, their use as flotation agents, and a process to make these novel compositions are disclosed.
    Type: Grant
    Filed: October 24, 1984
    Date of Patent: December 31, 1985
    Assignee: Phillips Petroleum Company
    Inventors: Kenneth B. Kimble, Clarence R. Bresson
  • Patent number: 4554108
    Abstract: Carboxyalkyl dithiocarbamates which can be characterized by the formula ##STR1## wherein R is selected from the group consisting of alkylene radicals, preferably alkylene radicals each having from 1 to 4 carbon atoms, wherein R' is selected from the group consisting of hydrogen and methyl and ethyl radicals, and wherein X is selected from the group consisting of alkali metal atoms, their use as ore flotation suppressants, and a process for making these novel compositions are disclosed.
    Type: Grant
    Filed: July 26, 1983
    Date of Patent: November 19, 1985
    Assignee: Phillips Petroleum Company
    Inventors: Kenneth B. Kimble, Harold W. Mark, Clarence R. Bresson
  • Patent number: 4554068
    Abstract: Carboxyalkyl dithiocarbamates which can be characterized by the formula ##STR1## wherein R is selected from the group consisting of alkylene radicals, wherein R' is selected from the group consisting of hydrogen and methyl and ethyl radicals, and wherein X is selected from the group consisting of alkali metal atoms, their use as ore flotation suppressants, and a process for making these novel compositions are disclosed.
    Type: Grant
    Filed: December 13, 1984
    Date of Patent: November 19, 1985
    Assignee: Phillips Petroleum Company
    Inventors: Kenneth B. Kimble, Harold W. Mark, Clarence R. Bresson
  • Patent number: 4533467
    Abstract: Diammonium bis(carboxyalkyl)-trithiocarbonate salts, dialkali metal bis(carboxyalkyl)-trithiocarbonate salts, their use as flotation agents, and a process for the production of these novel compositions are disclosed.
    Type: Grant
    Filed: May 10, 1984
    Date of Patent: August 6, 1985
    Assignee: Phillips Petroleum Company
    Inventors: Kenneth B. Kimble, Clarence R. Bresson, Harold W. Mark
  • Patent number: 4528141
    Abstract: S-Carboalkoxy-S'-alkyl trithiocarbonate, S-carboalkenoxy-S'-alkyl trithiocarbonate, S-carboalkenoxy-S'-alkenyl trithiocarbonate and S-carboalkoxy-S'-alkenyl trithiocarbonate, their use as flotation agents, and a process to make these novel compositions are disclosed.
    Type: Grant
    Filed: January 17, 1983
    Date of Patent: July 9, 1985
    Assignee: Phillips Petroleum Company
    Inventors: Kenneth B. Kimble, Clarence R. Bresson
  • Patent number: 4518492
    Abstract: S-carbalkoxy-S'-alkyl trithiocarbonate and n-dodecyl mercaptan are used for flotation of copper, nickel and iron-containing ores. S-carbalkoxy-S'-alkyl trithiocarbonate, n-dodecyl mercaptan and poly(propylene glycol) are used for the flotation of copper, nickel and iron-containing ores. Other ores are disclosed as being suitable for the flotation thereof with these novel compositions.
    Type: Grant
    Filed: June 15, 1984
    Date of Patent: May 21, 1985
    Assignee: Phillips Petroleum Company
    Inventors: Clarence R. Bresson, Kenneth B. Kimble