Patents by Inventor Colombo Paolo

Colombo Paolo 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).

  • Method for the neutralization of A-zeolite obtained in synthesis plants
    Patent number: 4732880
    Abstract: The filter press cake, obtained by separation of the raw Zeolite from the major portion of the mother liquor and not washed, or only partially washed, is additivated with a suitable surface-active agent, added in the amount of from 1 to 2% in weight on the weight of the wet Zeolite. The thus-fluidized Zeolite is treated in a high-turbulence zone with sulphuric acid at a concentration greater than 70%, which is added in such an amount as to produce a nearly complete neutralization of the final Zeolite.
    Type: Grant
    Filed: August 16, 1985
    Date of Patent: March 22, 1988
    Assignee: Mira Lanza S.p.A.
    Inventors: Nistri Ugo, Colombo Paolo, Da Col Lino