This inventor holds 3 USPTO granted patents. Top assignees: Intermountain Research and Development Corporation, Intermountain Research & Develop. Corp.. Active years: 1981-1988.
Company Filing History:
2 out of 17 
1 out of 2 Years Active: 1981-1988
Title: The Innovations of Francis Rauh
Introduction
Francis Rauh is an accomplished inventor based in Plainsboro, NJ (US). He holds a total of 3 patents that showcase his contributions to the field of crystallization and chemical processes. His work has significantly impacted the production and purification of various chemical compounds.
Latest Patents
One of Rauh's latest patents focuses on the purification of crystallized solids made via continuous crystallization. This innovative method allows for the recovery of crystalline solid products that are relatively free of impurities present in the crystallizer liquor. The process involves concentrating a portion of the withdrawn crystallizer slurry in a first hydroclone, diluting it with crystallizer feed solution, and then further concentrating it in a second hydroclone. Finally, the slurry is centrifuged and dried to recover the crystalline solid product.
Another notable patent by Rauh is the production of sodium bicarbonate by reversion of soda-type feed salt. In this process, solid sodium carbonate, sodium sesquicarbonate, and/or Wegscheider's salt are introduced into a reversion slurry that is saturated with respect to bicarbonate and contains at least 10 wt. % solids. This method enables rapid and complete conversion of the feed solids to crystalline sodium bicarbonate, which is then recovered from the slurry. The introduction of carbon dioxide into the reversion liquor helps maintain its composition at a relatively constant value, optimizing the process.
Career Highlights
Throughout his career, Francis Rauh has worked with various organizations, including Intermountain Research and Development Corporation and Intermountain Research & Development Corp. His expertise in chemical processes has made him a valuable asset in the field of research and development.
Collaborations
Rauh has collaborated with notable individuals such as William C. Copenhafer and Henry A. Pfeffer. These partnerships have contributed to the advancement of his innovative projects and patents.
Conclusion
Francis Rauh's contributions to the field of crystallization and chemical processes are noteworthy. His innovative patents reflect his dedication to improving production methods and enhancing the purity of chemical compounds. His work continues to influence the industry and inspire future innovations.