Tom O Niemi

Title: Tom O Niemi: Innovator in Cobalt Recovery and Production

Introduction

Tom O Niemi is a notable inventor based in Oja, Finland. He has made significant contributions to the field of cobalt recovery and production, holding 2 patents that showcase his innovative approaches. His work focuses on processes that enhance the efficiency and effectiveness of cobalt extraction from various sources.

Latest Patents

Tom O Niemi's latest patents include a process for the recovery of cobalt from its impure, aqueous solutions. In this process, cobalt is recovered as a finely-divided and anhydrous salt from impure, nickel-bearing, aqueous solutions of cobalt. The method involves exposing the aqueous solution to oxidation at an elevated temperature in the presence of ammonia and the respective ammonium salt. The formation of cobalt (III) hexammine ions is catalyzed with activated carbon or solid sulfides. Subsequently, a cobalt (III) hexammine salt is crystallized from the solution, separated, and pyrolyzed to form a cobalt (II) salt, with the released ammonia being returned to the oxidation stage. Another patent focuses on the production of extra fine cobalt powder, which is manufactured by pyrolyzing a cobalt (III) hexammine salt and then reducing the obtained oxide.

Career Highlights

Tom O Niemi is associated with Outokumpu Oy, a company known for its expertise in metal processing and technology. His work at Outokumpu Oy has allowed him to apply his innovative ideas in a practical setting, contributing to advancements in cobalt production.

Collaborations

Some of Tom O Niemi's coworkers include Matti J Hamalainen and Jussi K Rastas. Their collaboration has likely fostered an environment of innovation and shared expertise in their respective fields.

Conclusion

Tom O Niemi's contributions to cobalt recovery and production highlight his role as an influential inventor in the industry. His innovative processes and collaboration with skilled professionals continue to advance the field of metallurgy.