Robert S Yih

Title: The Innovative Contributions of Robert S. Yih

Introduction

Robert S. Yih is a notable inventor based in Salem, OR (US). He has made significant contributions to the field of materials science, particularly in the separation and purification of zirconium. His work has implications for various industries, including nuclear and materials engineering.

Latest Patents

Robert S. Yih holds a patent for a process titled "Zirconium-hafnium separation and purification process." This innovative method focuses on the recovery of substantially pure zirconium values from zircon sand, which also contains various other metal values. The process involves contacting zircon sand in a chlorinator with a chlorination medium to create an off-gas stream containing chlorides of Zr, Hf, Si, and trace U. The off-gas stream is then passed to a condenser to remove volatile Si chlorides, resulting in a product stream that contains condensed chlorides of Zr, Hf, and trace U. The product stream is treated in an acidic aqueous medium to separate the principal Hf values from the principal Zr values. Finally, the pH of the resulting effluent is adjusted to between about 3 to about 7 to precipitate the trace U values.

Career Highlights

Robert S. Yih is associated with Teledyne Industries, Inc., where he has contributed to various projects and innovations. His expertise in materials science has been instrumental in advancing the company's capabilities in zirconium processing.

Collaborations

Some of his notable coworkers include Kenneth C. Ash and William A. Crocker. Their collaborative efforts have further enhanced the research and development initiatives within their field.

Conclusion

Robert S. Yih's innovative work in zirconium-hafnium separation and purification showcases his significant contributions to materials science. His patent reflects a deep understanding of complex chemical processes and their applications in industry.