Company Filing History:
Years Active: 1986
Title: Toshifumi Kitagawa: Innovator in Tungsten Recovery
Introduction
Toshifumi Kitagawa is a notable inventor based in Kawaguchi, Japan. He has made significant contributions to the field of chemical engineering, particularly in the recovery of tungsten compounds from waste materials. His innovative approach addresses environmental concerns while enhancing resource recovery.
Latest Patents
One of Toshifumi Kitagawa's key patents is focused on the "Recovery of tungsten compounds." This invention provides a process for recovering tungsten from waste liquor that contains high-boiling organic compounds. The process involves spray-burning the waste liquor at an air ratio of 1.05 or higher, under specific temperature and residence time conditions. The combustion product is then quenched by direct contact with water, allowing for the effective recovery of the tungsten compound.
Career Highlights
Toshifumi Kitagawa is associated with Daicel Chemical Industries, Ltd., where he has been instrumental in advancing chemical recovery processes. His work not only contributes to the company's innovation portfolio but also aligns with global sustainability efforts.
Collaborations
Throughout his career, Toshifumi has collaborated with esteemed colleagues, including Yoshiyuki Imagire and Teruhiko Hirabayashi. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and expertise.
Conclusion
Toshifumi Kitagawa's contributions to tungsten recovery exemplify the intersection of innovation and environmental responsibility. His work continues to inspire advancements in chemical engineering and resource recovery.