Hal D Peterson

Title: Hal D Peterson: Innovator in Solvent Extraction Processes

Introduction

Hal D Peterson is a notable inventor based in Boulder, Colorado. He has made significant contributions to the field of solvent extraction processes, particularly in the recovery of metals from aqueous solutions. With a total of 2 patents, his work has implications for the mining and metallurgy industries.

Latest Patents

One of Hal D Peterson's latest patents is titled "Selective solvent extraction process for copper from nickel." This invention relates to a solvent extraction process that selectively recovers copper from an aqueous solution containing both copper and nickel, with a pH above about 9. By using limited amounts of oxime, the process allows for the preferential extraction of copper ions over nickel or cobalt in a multistage countercurrent process. The hydrogen ion of the oxime molecule exchanges with the copper ion in the aqueous solution, facilitating this selective extraction.

Another significant patent is "Removing ammonia from solutions of oxime-metal chelate." This process involves selectively removing ammonia from an organic solution containing ammonia and an oxime-metal chelate. The method comprises countercurrently contacting the organic solution with an aqueous solution of ammonium carbonate or bicarbonate. The mole ratio of ammonia in the organic solution is carefully maintained to ensure effective transfer to the aqueous solution, preventing substantial emulsification and allowing for the recovery of metals.

Career Highlights

Hal D Peterson is associated with Kennecott Copper Corporation, where he has applied his expertise in solvent extraction processes. His work has contributed to advancements in metal recovery techniques, enhancing efficiency and sustainability in the industry.

Collaborations

Throughout his career, Hal has collaborated with notable colleagues, including Roald R Skarbo and Edmond A Morin. These collaborations have likely enriched his research and development efforts, leading to innovative solutions in the field.

Conclusion

Hal D Peterson's contributions to solvent extraction processes demonstrate his commitment to innovation in metallurgy. His patents reflect a deep understanding of chemical processes and their applications in metal recovery. His work continues to influence the industry and pave the way for future advancements.