Shota Saito

Title: Shota Saito and a Method for Purifying Nitrile Solvents.

Introduction

Shota Saito is an inventor associated with Takaoka, Japan, and Nippon Soda Co., Ltd. His patent work addresses the purification of nitrile solvents, including isobutyronitrile, to remove impurities and obtain a higher-purity product.

Latest Patents

Saito is credited with 1 patent: “Method for Purifying Nitrile Solvent.” The invention describes a process for treating nitrile solvent that may contain impurities such as imines, conjugated dienes, carbonyl compounds, or high-boiling materials.

The method brings the solvent into contact with an acidic aqueous solution with a pH of 3 or less, such as hydrochloric acid. It then uses an aqueous sodium hydrogen sulfite solution, followed by an alkaline aqueous solution, such as sodium hydroxide. The process concludes by distilling the treated solvent.

Career Highlights

Saito’s listed patent reflects work on solvent purification and chemical processing. The disclosed sequence of treatments is designed to address multiple types of impurities in nitrile solvents.

Collaborations

Keiichiro Matsuda and Ryoji Wada are identified as Saito’s coworkers. The available information does not specify their roles in the patent or the purification method.

Conclusion

Shota Saito’s patent focuses on a staged purification process for nitrile solvents, combining acidic, sulfite, and alkaline treatments with distillation to produce a higher-purity solvent.