Patents by Inventor Ian Thaxter

Ian Thaxter 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).

  • Releasing impurities from a calcium-based mineral
    Patent number: 10988387
    Abstract: A method for releasing impurities from a calcium-based mineral is described. The method comprises reacting a calcium-based mineral containing impurities with an aqueous solution of one or more ionic salts at a temperature of approximately 85° C. or above, wherein at least one of the calcium-based mineral and the one or more ionic salts comprises sulphate and at least one of the calcium-based mineral and the one or more ionic salts comprises ammonium, and wherein the concentration of the solution is approximately 25% or higher mass fraction, such that double salt crystals are formed and impurities are released. The method further comprises separating the double salt crystals from the impurities. Various products of the process are also described.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: April 27, 2021
    Assignee: Carbon Cycle Limited
    Inventors: Waqas Mirza, Stephen Florence, Ian Thaxter, David Sevier