Company Filing History:
Years Active: 1989-1999
Title: **David W. Persichini: Innovator in Isopropyl Alcohol Purification**
Introduction
David W. Persichini, an accomplished inventor based in Oceanside, California, has significantly contributed to the field of chemical engineering. With a total of five patents to his name, his work has focused primarily on innovations in the purification and dehydration processes of isopropyl alcohol, crucial for various industrial applications, particularly in semiconductor manufacturing.
Latest Patents
Among his most recent inventions are two advanced methods for the dehydration and purification of isopropyl alcohol. The first patent describes a sophisticated technique for on-site reprocessing of isopropyl alcohol used in semiconductor manufacturing, aimed at generating ultradry and ultrapure isopropyl alcohol. This process involves a pervaporation step followed by double distillation. The first stage employs an autonomous azeotropic self-stripping distillation column to produce an ultradry and partially purified product. The subsequent distillation further refines the substance in an overhead product column, achieving an ultrapure form characterized by extremely low levels of water and impurities.
In another patent, Persichini developed an apparatus for continuous on-site chemical reprocessing of ultrapure substances through a unique distillation method. This innovative design features an elongated distillation chamber equipped with concentric boiling rings and advanced reflux systems, optimizing the removal of soluble impurities and fine particles during the distillation process.
Career Highlights
Currently, David W. Persichini is associated with Athens Corporation, where he leverages his expertise in chemical processes to enhance product quality and efficiency. His inventive methods have not only improved the purification standards in the industry but have also set new benchmarks for performance and reliability in chemical reprocessing.
Collaborations
During his career, Persichini has collaborated with notable colleagues, including R Scot Clark and Joe G Hoffman. Together, they have pushed the boundaries of what's possible in chemical engineering, combining their diverse skills and knowledge to achieve groundbreaking results.
Conclusion
David W. Persichini stands as a distinguished figure in innovation, particularly in the area of isopropyl alcohol purification. His patents represent the cutting edge of chemical processing technology, showcasing his commitment to excellence and sustainability in manufacturing practices. Through his contributions, he continues to influence the future of chemical engineering and industrial applications.