Company Filing History:
3 out of 7 
1 out of 1 
1 out of 1 Years Active: 1979-1988
Title: Armand L Davister: Innovator in Phosphoric Acid Production
Introduction
Armand L Davister is a notable inventor based in Liege, Belgium. He has made significant contributions to the field of chemical engineering, particularly in the production of phosphoric acid. With a total of 7 patents to his name, Davister's work has had a lasting impact on industrial processes.
Latest Patents
One of his latest patents is titled "Continuous process for preparing phosphoric acid and calcium sulphate." This innovative process involves adjusting the flow rates of a circulating mixture relative to a base flow rate according to specific specifications. Additionally, it requires careful adjustment of the reaction conditions in successive reaction zones to produce phosphoric acid with a P.sub.2 O.sub.5 concentration between 33 and 52%, and a H.sub.2 SO.sub.4 concentration between 0.25 and 2.5%. The process also yields calcium sulphate in various crystalline forms, including dihydrate, hemihydrate, and anhydrite.
Career Highlights
Throughout his career, Davister has worked with prominent companies in the chemical industry. Notably, he has been associated with Prayon Development, a well-respected firm in the field. His expertise in chemical processes has been instrumental in advancing the production techniques used in the industry.
Collaborations
Davister has collaborated with several esteemed professionals, including Francis A Thirion and Andre R Dubreuco. These partnerships have contributed to the development of innovative solutions in chemical engineering.
Conclusion
Armand L Davister's contributions to the field of phosphoric acid production exemplify his innovative spirit and dedication to advancing chemical processes. His patents and collaborations reflect a commitment to excellence in engineering and innovation.