Company Filing History:
Years Active: 1993-1995
Title: Innovations by David G Tisdale
Introduction
David G Tisdale is an accomplished inventor based in Sudbury, Canada. He has made significant contributions to the field of metallurgy, particularly in the treatment of chromium-bearing metal scrap. With a total of two patents to his name, Tisdale's work focuses on innovative processes that enhance metal recovery and reduce environmental impact.
Latest Patents
Tisdale's latest patents include a process for the pretreatment of chromium-bearing metal scrap to remove chromium. This process involves charging the chromium-bearing metal scrap with an iron oxide-bearing slag into a pyrometallurgical furnace. The charge is then heated and melted, maintaining a molten state at a temperature of at least 1550 degrees Celsius for a predetermined time. This allows for an iron oxide/chromium exchange reaction to occur, oxidizing and removing chromium to the slag phase while reducing iron to the metal phase. The result is an alloy product containing iron along with nickel and/or cobalt, which can be further processed for the recovery of metal values. Another similar patent outlines a process using fayalite slag instead of iron oxide-bearing slag, demonstrating Tisdale's innovative approach to metal recovery.
Career Highlights
David G Tisdale is currently employed at Falconbridge Limited, where he applies his expertise in metallurgy to develop advanced processes for metal recovery. His work has been instrumental in improving the efficiency and sustainability of metal processing operations.
Collaborations
Tisdale collaborates with Gary J O'Connell, a fellow professional in the field. Their combined efforts contribute to the advancement of metallurgical processes and innovations.
Conclusion
David G Tisdale's contributions to the field of metallurgy through his innovative patents and career at Falconbridge Limited highlight his commitment to enhancing metal recovery processes. His work not only advances the industry but also promotes environmental sustainability.