Olli Järvinen

Title: Olli Järvinen: Innovator in Hydrometallurgical Processes

Introduction

Olli Järvinen is a notable inventor based in Espoo, Finland. He has made significant contributions to the field of hydrometallurgy, particularly in the processing of anode sludge and slime. With a total of 3 patents, Järvinen's work focuses on innovative methods that enhance the recovery of valuable metals from industrial waste.

Latest Patents

Järvinen's latest patents include a "Method for processing anode sludge" and a "Method and device for treating anode slime." The first patent describes a hydrometallurgical method for separating precious metals and impurities from anode sludge obtained from copper electrolysis. This method involves atmospheric leaching to separate copper, followed by a two-step calcination process to isolate selenium and sulfatize silver. The sulfatized silver can then be extracted through leaching into a neutral aqueous solution.

The second patent outlines a method and furnace designed for the continuous processing of anode slime. This innovative approach is particularly suited for integration with hydrometallurgical processes following roasting. The method includes a series of steps—drying, roasting, sulfatizing, and cooling—executed in succession to ensure efficient treatment of the slime, which contains valuable metals and selenium.

Career Highlights

Olli Järvinen is currently employed at Outotec Oyj, a company known for its expertise in sustainable technologies for the mining and metallurgical industries. His work at Outotec has allowed him to apply his innovative ideas in practical settings, contributing to advancements in metal recovery processes.

Collaborations

Throughout his career, Järvinen has collaborated with notable colleagues, including Henri K Virtanen and Leo Lindroos. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and the development of cutting-edge technologies.

Conclusion

Olli Järvinen's contributions to hydrometallurgy through his patents and work at Outotec Oyj highlight his role as an influential inventor in the field. His innovative methods for processing anode sludge and slime are paving the way for more efficient recovery of valuable metals, showcasing the importance of innovation in sustainable practices.