Patents by Inventor Roberto I. Morrell

Roberto I. Morrell 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 producing a stabilized phosphoric acid
    Patent number: 4442081
    Abstract: A wet process phosphoric acid which has been treated with aluminosilicate after the first stage of clarification can be further stabilized against precipitation of solids during storage and transport and the solids from the crystallizer more economically used to make diammonium and triple superphosphate fertilizers by introducing a second stage of clarification of the acid at a P.sub.2 O.sub.5 concentration of 38 to 42 weight percent.
    Type: Grant
    Filed: December 2, 1982
    Date of Patent: April 10, 1984
    Assignee: W. R. Grace & Co.
    Inventors: Roberto I. Morrell, Charles F. Peters