Location History:
- St-Bruno, CA (1977)
- St. Bruno, CA (1980)
Company Filing History:
Years Active: 1977-1980
Title: David John Gannon: Innovator in Flotation Technology
Introduction
David John Gannon is a notable inventor based in St-Bruno, Canada. He has made significant contributions to the field of flotation technology, particularly in the recovery of copper minerals. With a total of 2 patents, Gannon's work has advanced the methods used in mineral processing.
Latest Patents
Gannon's latest patents include innovative processes that enhance the efficiency of mineral separation. One of his patents, titled "Hydrophilic thio compounds as selective depressants in the flotation," focuses on a method for separating molybdenite from copper sulphide and other metal sulphide minerals. This process utilizes a copper sulphide depressant that contains at least one nitrogen atom, one thio group, and one hydrophilic group. Examples of compounds used in this process include 2-thiouracil, pseudothio-hydantoin, and 2-imino-4-oxo-5-thiazolidineacetic acid.
Another significant patent is "Use of tetraalkylammonium halides as flotation collectors." This process improves the recovery of copper minerals from oxidized ores by employing sulphidization followed by flotation with a tetraalkylammonium halide as a collector. The method allows for a recovery increase of 10% more copper from oxidized copper ore compared to traditional sulphidization and xanthate flotation steps.
Career Highlights
David John Gannon is currently associated with Canadian Industries, Ltd., where he applies his expertise in flotation technology. His innovative approaches have positioned him as a key figure in the field of mineral processing.
Collaborations
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Conclusion
David John Gannon's contributions to flotation technology through his patents demonstrate his commitment to advancing mineral processing techniques. His work continues to influence the industry and improve the efficiency of copper recovery methods.