Patents by Inventor Steven L. CHASTAIN

Steven L. CHASTAIN 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).

  • Methods of processing solutions of potassium sulfate and magnesium sulfate, methods of producing potassium sulfate, and related systems
    Patent number: 9139446
    Abstract: Methods of processing an aqueous solution comprising potassium sulfate and magnesium sulfate include crystallizing K2SO4, crystallizing recycle crystals, and mixing at least a portion of the recycle crystals with the aqueous solution. Systems for processing potassium sulfate and magnesium sulfate include a first crystallizer and a second crystallizer in fluid communication with the second mix tank. The second crystallizer is structured and adapted to precipitate recycle crystals from the concentrated liquor to form a potassium-depleted recycle brine. The recycle crystals precipitated in the second crystallizer have a composition suitable to be recycled to the first crystallizer to increase the production of SOP.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: September 22, 2015
    Assignee: INTERCONTINENTAL POTASH CORP. (USA)
    Inventors: Steven L. Chastain, Michael J. Morrison, Richard W. Chastain, Donial M. Felton, Thomas H. Neuman
  • METHODS OF PROCESSING SOLUTIONS OF POTASSIUM SULFATE AND MAGNESIUM SULFATE, METHODS OF PRODUCING POTASSIUM SULFATE, AND RELATED SYSTEMS
    Publication number: 20140334995
    Abstract: Methods of processing an aqueous solution comprising potassium sulfate and magnesium sulfate include crystallizing K2SO4, crystallizing recycle crystals, and mixing at least a portion of the recycle crystals with the aqueous solution. Systems for processing potassium sulfate and magnesium sulfate include a first crystallizer and a second crystallizer in fluid communication with the second mix tank. The second crystallizer is structured and adapted to precipitate recycle crystals from the concentrated liquor to form a potassium-depleted recycle brine. The recycle crystals precipitated in the second crystallizer have a composition suitable to be recycled to the first crystallizer to increase the production of SOP.
    Type: Application
    Filed: July 25, 2014
    Publication date: November 13, 2014
    Inventors: Steven L. CHASTAIN, Michael J. MORRISON, Richard W. CHASTAIN, Donial M. FELTON, Thomas H. NEUMAN
  • Methods of processing solutions of potassium sulfate and magnesium sulfate, methods of producing potassium sulfate, and related systems
    Patent number: 8802048
    Abstract: Methods of processing an aqueous solution comprising potassium sulfate and magnesium sulfate include crystallizing K2SO4, crystallizing recycle crystals, and mixing at least a portion of the recycle crystals with the aqueous solution. Systems for processing potassium sulfate and magnesium sulfate include a first crystallizer and a second crystallizer in fluid communication with the second mix tank. The second crystallizer is structured and adapted to precipitate recycle crystals from the concentrated liquor to form a potassium-depleted recycle brine. The recycle crystals precipitated in the second crystallizer have a composition suitable to be recycled to the first crystallizer to increase the production of SOP.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: August 12, 2014
    Assignee: Intercontinental Potash Corp. (USA)
    Inventors: Steven L. Chastain, Michael J. Morrison, Richard W. Chastain, Donial M. Felton, Thomas H. Neuman
  • METHODS OF PROCESSING SOLUTIONS OF POTASSIUM SULFATE AND MAGNESIUM SULFATE, METHODS OF PRODUCING POTASSIUM SULFATE, AND RELATED SYSTEMS
    Publication number: 20140072507
    Abstract: Methods of processing an aqueous solution comprising potassium sulfate and magnesium sulfate include crystallizing K2SO4, crystallizing recycle crystals, and mixing at least a portion of the recycle crystals with the aqueous solution. Systems for processing potassium sulfate and magnesium sulfate include a first crystallizer and a second crystallizer in fluid communication with the second mix tank. The second crystallizer is structured and adapted to precipitate recycle crystals from the concentrated liquor to form a potassium-depleted recycle brine. The recycle crystals precipitated in the second crystallizer have a composition suitable to be recycled to the first crystallizer to increase the production of SOP.
    Type: Application
    Filed: September 10, 2013
    Publication date: March 13, 2014
    Applicant: INTERCONTINENTAL POTASH CORPORATION
    Inventors: Steven L. CHASTAIN, Michael J. MORRISON, Richard W. CHASTAIN, Donial M. FELTON, Thomas H. NEUMAN