Patents by Inventor Geroge M. Lilley

Geroge M. Lilley 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).

  • Recovery in the phosphate ore double flotation process
    Patent number: 4867867
    Abstract: This invention relates to a method of enhanced recovery of phosphate in the double flotation process for the benefication of phosphate ore, more particularly to the use of pH modifiers-silica depressants:sodium silicate;soda ash (Na.sub.2 CO.sub.3); orsoda silicate and soda ash, alone or in combination with one or more ingredients selected from the group consisting of: starch, dextrin, sodium sulfite and trisodium phosphate, added to the casutic or ammonia reagent used to prepare the patty acid-fuel oil mixture in the first stage of the double flotation process.
    Type: Grant
    Filed: April 5, 1984
    Date of Patent: September 19, 1989
    Assignee: J. Warren Allen
    Inventor: Geroge M. Lilley