Patents by Inventor Tom V. Burns

Tom V. Burns 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 making stable sludge-free ammonium polyphosphate fertilizer solutions
    Patent number: 3988140
    Abstract: Stable sludge-free ammonium polyphosphate fertilizer solution is prepared by introducing ammonia and a blend of impure wet process phosphoric acid having a P.sub.2 O.sub.5 content of 58 to 68% and solvent extracted wet process phosphoric acid of reduced Fe.sub.2 O.sub.3, Al.sub.2 O.sub.3, MgO and free H.sub.2 O content into a reactor wherein the mixed reactants are retained for at least about 0.10 second after which the reaction product is immediately quenched and the resulting solution aged to effect precipitation and nucleation of suspended insoluble metallic phosphates and insoluble organic matter, and filtered.
    Type: Grant
    Filed: January 30, 1975
    Date of Patent: October 26, 1976
    Inventors: Tom V. Burns, Sergio Ortega Pierres