Company Filing History:
2 out of 151 
1 out of 4 
1 out of 408 
Years Active: 1995-1998
Title: Indje O Mihaylov: Innovator in Metal Extraction Technologies
Introduction
Indje O Mihaylov is a prominent inventor based in Mississauga, Canada. She has made significant contributions to the field of hydrometallurgy, particularly in the extraction and regeneration of metal extractants. With a total of 3 patents, her work has advanced the methods used in metal recovery processes.
Latest Patents
One of her latest patents is focused on the regeneration of dithiophosphorus acid metal extractants. This invention provides a method for regenerating dithiophosphorus extractants, such as dithiophosphoric acids, from their sulfur-sulfur bonded oxidation products. The process generates active hydrogen, which is crucial for regenerating spent dithiophosphorus extractants. This active hydrogen can be produced by introducing a reactive metal into a mixture or by using hydrogen gas in the presence of a catalyst. The generated active hydrogen effectively breaks the sulfur-sulfur bonds, leading to the formation of the corresponding dithiophosphorus acids.
Another significant patent involves a hydrometallurgical process for the extraction and separation of nickel and/or cobalt. This invention outlines a method where an aqueous feed solution, originating from acid leaching, is maintained at a pH level between 2 and 6. The solution is then contacted with a water-immiscible organic phase containing an extractant, which allows for the loading of nickel and/or cobalt metal ions. The process ensures that the extractant can be reused by maintaining low levels of chromium (VI), iron (III), and copper ions in the aqueous feed solution.
Career Highlights
Indje has worked with notable companies in the industry, including Inco Limited and Goro Nickel S.A. Her experience in these organizations has contributed to her expertise in metal extraction technologies.
Collaborations
Throughout her career, Indje has collaborated with esteemed professionals such as Eberhard Krause and Steve W Laundry. These collaborations have further enriched her work and innovations in the field.
Conclusion
Indje O Mihaylov is a trailblazer in the field of metal extraction, with her innovative patents paving the way for advancements in hydrometallurgy. Her contributions continue to impact the industry positively.