Katutoshi Narita

Title: Katutoshi Narita: Innovator in Metal Recovery Technologies

Introduction

Katutoshi Narita is a prominent inventor based in Ibaraki, Japan. He has made significant contributions to the field of metal recovery, particularly in the efficient extraction of valuable metals from various solutions. With a total of 3 patents to his name, Narita's work has the potential to impact industries that rely on precious metals.

Latest Patents

Narita's latest patents include innovative methods for recovering antimony and platinum. One of his notable inventions is a method for eluting antimony adsorbed on chelating resin. In this process, antimony is recovered from the electrolyte of the copper electro-refining process. The antimony is first adsorbed on the chelating resin and then eluted using acid. This method improves efficiency by adjusting the antimony concentration in the acidic eluting solution, reducing the amount of acid and alkali required compared to conventional methods.

Another significant patent is the method of platinum recovery. This process involves adding a neutralizing reagent to a solution of chloroplatinic acid to adjust the pH value. The method includes multiple steps of filtration and neutralization, ultimately converting the platinum compound to ammonium chloroplatinate, which is then heated to yield platinum sponge. The preferred neutralizing reagents for this process are NaOH or KOH, and careful filtration is emphasized to ensure purity.

Career Highlights

Narita is currently employed at Nippon Mining & Metals Co., Ltd., where he continues to develop and refine his innovative methods for metal recovery. His work is crucial in enhancing the efficiency and sustainability of metal extraction processes.

Collaborations

Narita collaborates with Kazuhiko Motoba, contributing to the advancement of technologies in the field of metal recovery. Their combined expertise fosters innovation and drives progress in their respective projects.

Conclusion

Katutoshi Narita's contributions to metal recovery technologies exemplify the importance of innovation in industrial processes. His patents not only enhance efficiency but also promote sustainable practices in the extraction of valuable metals.