Helen S Leaver

Title: Innovations and Contributions of Helen S. Leaver

Introduction

Helen S. Leaver is a notable inventor based in Pine, Colorado. She has made significant contributions to the field of chemical engineering, particularly in the extraction and purification of metals. With a total of 3 patents, her work has advanced the methods used in solvent extraction processes.

Latest Patents

One of her latest patents focuses on the solvent extraction of cobalt (II) from sulfate solutions. This innovative method allows for the separate recovery of cobalt and nickel contained in aqueous sulfate solutions through counter-current solvent extraction. By controlling the aqueous pH during the extraction, scrubbing, and stripping stages, she maximizes cobalt loading and selectivity of the extractant while minimizing scaling and recycling issues. Another significant patent involves the purification of nickel chloride solutions. This process effectively removes impurities such as copper, iron, and zinc from aqueous nickel chloride solutions using tributyl phosphate (TBP) as an organic extractant. The method is designed to produce a nickel raffinate that is substantially impoverished in impurities.

Career Highlights

Helen S. Leaver has been associated with Amax Incorporated, where she has applied her expertise in chemical processes. Her innovative approaches have not only contributed to her company's success but have also influenced the broader field of metal extraction and purification.

Collaborations

Some of her notable coworkers include Phillip K. Davis and Henry Freiser. Their collaborative efforts have further enhanced the research and development initiatives within their organization.

Conclusion

Helen S. Leaver's contributions to the field of chemical engineering through her patents and innovative methods have made a lasting impact. Her work continues to influence the extraction and purification processes in the industry.