Company Filing History:
Years Active: 1980-1981
Title: Kohur N Subramanian: Innovator in Non-Ferrous Metal Extraction
Introduction
Kohur N Subramanian is a notable inventor based in East Hanover, NJ (US). He has made significant contributions to the field of metallurgy, particularly in the extraction of non-ferrous metals. With a total of 4 patents to his name, Subramanian's work has advanced the methods used in metal recovery processes.
Latest Patents
Among his latest patents is the innovative process titled "Autoclave oxidation leaching of sulfide materials containing copper." This process provides a method for treating matte to selectively extract non-ferrous metals through a single-stage oxidative pressure leach. The leaching occurs under relatively mild conditions on an aqueous slurry of the matte, which has a specific sulfur adjustment and a final pH of less than approximately 4 but not less than approximately 3. Another significant patent is "Recovery of nickel and cobalt from leach slurries." This patent describes a method for treating slurries obtained from acid leaching nickeliferous ores with high iron content. The treatment involves controlled precipitation of non-ferrous metals using calcium sulfide or barium sulfide, followed by flotation to recover a high-grade concentrate.
Career Highlights
Kohur N Subramanian is currently associated with the International Nickel Company, Inc., where he continues to innovate in the field of metallurgy. His work has been instrumental in improving the efficiency of metal recovery processes, which is crucial for the sustainability of metal resources.
Collaborations
Throughout his career, Subramanian has collaborated with esteemed colleagues, including Norman C Nissen and Grigori S Victorovich. These collaborations have further enriched his research and development efforts in the field.
Conclusion
Kohur N Subramanian's contributions to the extraction of non-ferrous metals through innovative processes highlight his role as a leading inventor in metallurgy. His patents reflect a commitment to advancing technology in metal recovery, making a significant impact in the industry.