Company Filing History:
2 out of 164 
2 out of 11 Years Active: 1981
Title: F Michael Gragg: Innovator in Phosphoric Acid Production
Introduction
F Michael Gragg is a notable inventor based in Riverside, California, recognized for his contributions to the field of phosphoric acid production. With a total of two patents to his name, Gragg has developed innovative processes that enhance the efficiency and effectiveness of phosphoric acid manufacturing.
Latest Patents
Gragg's latest patents include a method for a start-up procedure in producing phosphoric acid by the hemihydrate. This multi-stage, multi-vessel production system involves a first reaction vessel containing a slurry of calcium sulfate hemihydrate, monocalcium phosphate, and phosphoric acid, along with a second vessel containing a slurry of calcium sulfate hemihydrate, sulfuric acid, and phosphoric acid. The improved start-up procedure utilizes heated phosphoric acid with a P2O5 analysis between 28% and 38%, allowing for the efficient feeding of phosphate rock into the system while maintaining optimal solid and sulfate levels.
Another significant patent is the feed system for phosphoric acid production with decreased foaming. This system integrates a first reaction vessel with a slurry of calcium sulfate hemihydrate and monocalcium phosphate, and a second vessel with a similar slurry. The design includes circulation means and an inlet pipe for introducing phosphate rock and phosphoric acid, which enhances the flow rate and efficiency of the production process.
Career Highlights
Throughout his career, Gragg has worked with prominent organizations such as Occidental Research Corporation and Occidental Chemical Company. His experience in these companies has contributed to his expertise in chemical processes and innovations in phosphoric acid production.
Collaborations
Gragg has collaborated with notable colleagues, including James Self and Allen S. Adams, who have contributed to his work in the field.
Conclusion
F Michael Gragg's innovative patents and career in phosphoric acid production highlight his significant contributions to the industry. His work continues to influence the efficiency of chemical manufacturing processes.