Robert F Redden

Title: The Innovations of Robert F. Redden

Introduction

Robert F. Redden is a notable inventor based in Fruitvale, California. He has made significant contributions to the field of materials science, particularly in the purification of elements and the extraction of arsenic from oxidic materials. With a total of 4 patents to his name, Redden's work has had a considerable impact on various industrial processes.

Latest Patents

One of Redden's latest patents is focused on the purification of cadmium (Cd) and tellurium (Te) through a method known as zone refining. This innovative process involves multiple-pass zone refining in the presence of a small amount of an added gettering substance, which can be Cd, Te, or CdTe. The method enhances the purity of the purified Cd and Te, as evidenced by SSMS analyses, and improves the ductility of the Cd. Additionally, it significantly increases the yield of slices of CdHgTe produced, meeting the specifications for carrier concentration and mobility.

Another significant patent by Redden outlines a process for extracting arsenic from oxidic materials. This process effectively separates arsenic from antimony in materials containing compounds such as arsenic trioxide and pentoxide. The method involves leaching the oxidic materials with a lixiviant containing arsenic acid or hydrogen peroxide at elevated temperatures. The leach solution containing arsenic oxides is then separated from the leach residue, allowing for the recovery of arsenic trioxide or pentoxide.

Career Highlights

Robert F. Redden has worked with Cominco, Ltd., where he has applied his expertise in materials science to develop innovative solutions for industrial challenges. His work has not only advanced the field but has also contributed to the efficiency and effectiveness of various processes in the industry.

Collaborations

Throughout his career, Redden has collaborated with notable colleagues, including Thomas L. Charlton and Horst E. Hirsch. These collaborations have fostered a productive environment for innovation and have led to the development of groundbreaking technologies.

Conclusion

Robert F. Redden's contributions to the field of materials science through his patents and innovative processes have made a lasting impact. His work continues to influence the industry, showcasing the importance of innovation in advancing technology and improving industrial practices.