Patents by Inventor Carlos B. Martin

Carlos B. Martin 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).

  • Process for bleaching and increasing the ion-exchange capability of sepiolite
    Patent number: 5051202
    Abstract: The present invention refers to a process for bleaching and increasing the ion-exchange capability of the sepiolite mineral, basically consisting of treating, at high pH and temperature, the sepiolite with a basic salt solution, which results in bleaching the starting material by dissolution of the organic material present in it, and in increasing the ion-exchange capability by a structural transformation of sepiolite. The bleaching can be optionally completed with a reduction treatment with sodium dithionite or with other reducing agents capable of reducing Fe.sup.3+ to Fe.sup.2+.
    Type: Grant
    Filed: July 1, 1988
    Date of Patent: September 24, 1991
    Assignee: Tolsa, S.A.
    Inventors: Antonio A. Berenguer, Carlos B. Martin