Kiyoshi Iwanaga

Title: Kiyoshi Iwanaga: Innovator in Chlorine Production

Introduction

Kiyoshi Iwanaga is a notable inventor based in Chiba, Japan. He has made significant contributions to the field of chemical engineering, particularly in chlorine purification and production. With a total of 9 patents to his name, Iwanaga's work has had a substantial impact on the industry.

Latest Patents

Iwanaga's latest patents include a method of chlorine purification and a process for producing 1,2-dichloroethane. The method of chlorine purification involves treating crude chlorine, which contains nitrogen and/or oxygen, with 1,2-dichloroethane. This process allows for the absorption of chlorine from the crude mixture. Additionally, his process for producing 1,2-dichloroethane entails reacting ethylene with chlorine derived from the chlorine-containing 1,2-dichloroethane. Another significant patent is a method for producing chlorine, which includes oxidizing hydrogen chloride in a gas containing hydrogen chloride with oxygen in the presence of a catalyst. This innovative approach ensures stable catalyst activity and high yield of chlorine.

Career Highlights

Kiyoshi Iwanaga is currently associated with Sumitomo Chemical Company, Limited, where he continues to develop and refine his innovative processes. His work has been instrumental in enhancing the efficiency and effectiveness of chlorine production methods.

Collaborations

Iwanaga has collaborated with notable colleagues such as Mitsuhisa Tamura and Tetsuya Suzuta. Their combined expertise has contributed to the advancement of chemical processes within their field.

Conclusion

Kiyoshi Iwanaga's contributions to chlorine purification and production exemplify the importance of innovation in the chemical industry. His patents reflect a commitment to improving industrial processes and enhancing product quality.