Patents Assigned to Corporacion De Fomento De La Produccion
  • Process for recovering lithium from brine by salting out lithium sulfate monohydrate
    Patent number: 4287163
    Abstract: A salting-out process for recovering lithium from brines which have been concentrated by solar or thermal evaporation. Soluble sulfate salts are added to the strong brine solutions containing lithium to yield lithium sulfate monohydrate. Subsequent treatment of some residual brines with a strong acid will crystallize quantities of boron present as boric acid. Depending on the time of year and type of brine being used, a brine solar heating or plant evaporation system is provided to enhance the recovery processes.
    Type: Grant
    Filed: May 29, 1979
    Date of Patent: September 1, 1981
    Assignees: Saline Processors, Inc., Corporacion de Fomento de la Produccion
    Inventors: Donald E. Garrett, Martin Laborde
  • Pond sealing
    Patent number: 4222685
    Abstract: A method of providing a substantially impermeable lining to the bottom of an earthen pond using native soil. Such soil is classified and formed into a slurry containing fine particles of predominately five or less micron size. The pond bottom is covered with a first layer of the slurry which is allowed to dry to a point where large crack patterns develop. The cracks are filled with a second layer of the slurry. More layers may be applied to form a final lining having the desired permeability for the particular application.
    Type: Grant
    Filed: March 20, 1979
    Date of Patent: September 16, 1980
    Assignees: Corporation de Fomento de la Produccion, Corporacion De Fomento De La Produccion
    Inventors: Gene Jefferson, Martin Laborde
  • Method of extraction involving the use of solvents and new combination of reactors used
    Patent number: 4028462
    Abstract: In a process of extraction involving the use of solvents, considerable increase is obtained in the effective load of the extraction phase and in the recovery factor, through a new combination of the reactors employed in order that the loading and unloading stages of the organic phase may alternate.
    Type: Grant
    Filed: May 22, 1975
    Date of Patent: June 7, 1977
    Assignee: Corporacion de Fomento de la Produccion, represented by Comite de Investigaciones Technologicas
    Inventors: Esteban Domic, Albert Sfeir, Jorge Sandoval
  • Apparatus for the simultaneous pumping-mixing of several non miscible liquids
    Patent number: 3953004
    Abstract: Improvement and greater efficiency in pumping-mixing of several non-miscible liquids and adequate flow rate control of liquids to be mixed are obtained through the use of centrifugal rotors and suction tubes which are independent for each liquid and connected to separate flow boxes. Efficient flow rate control of each liquid is obtained by regulating the inflow inlet section of each flow box and also by the extension of the screwable suction tube into the flow box and also by properly and adequately dimensioning the rotors.
    Type: Grant
    Filed: August 21, 1974
    Date of Patent: April 27, 1976
    Assignee: Corporacion de Fomento de la Produccion, represented by Comite de Investigaciones Technologicas
    Inventors: Pablo Schmidt, Alberto Sfeir