Company Filing History:
Years Active: 1997-2005
Title: Takashige Miyanari: Innovator in Ester Production and Acetic Acid Purification
Introduction
Takashige Miyanari is a notable inventor based in Oita, Japan. He has made significant contributions to the field of chemical engineering, particularly in the production of esters and the purification of acetic acid. With a total of 2 patents, Miyanari's work has implications for both industrial processes and environmental sustainability.
Latest Patents
Miyanari's latest patents include a process for producing esters and a process for purifying acetic acid. The ester production process involves reacting a carboxylic acid and ethylene in the presence of an acid catalyst in a vapor phase. This method controls the concentration of olefin having three or more carbon atoms to 10,000 ppm or less, which remarkably prevents catalyst deterioration and allows for continuous and stable operation over extended periods.
The acetic acid purification process introduces a feedstock aqueous solution of acetic acid into an extractor, where it is treated with an extracting medium containing isopropyl acetate. This method effectively extracts acetic acid and separates it from the extraction residue. The process further distills off isopropyl acetate via azeotropic distillation with water, resulting in a dehydrated and purified acetic acid product.
Career Highlights
Miyanari is currently employed at Showa Denko K.K., where he continues to innovate in chemical processes. His work has not only advanced the efficiency of ester production but has also improved methods for purifying acetic acid, which is vital for various industrial applications.
Collaborations
Miyanari collaborates with esteemed colleagues such as Takaharu Sasaki and Masayuki Fujimoto. Their combined expertise contributes to the ongoing development of innovative chemical processes.
Conclusion
Takashige Miyanari's contributions to ester production and acetic acid purification highlight his role as a significant inventor in the chemical engineering field. His patents reflect a commitment to improving industrial processes while addressing environmental concerns.