Company Filing History:
2 out of 11 
1 out of 4 Years Active: 1983-1985
Title: The Innovations of Francis M. Sale
Introduction
Francis M. Sale is a notable inventor based in Lake City, Florida, recognized for his contributions to the field of chemical engineering. He holds three patents, showcasing his innovative approach to blending phosphoric acids with differing impurity content. His work has significant implications for the production of liquid fertilizers and the transportation of phosphoric acid.
Latest Patents
One of Sale's latest patents focuses on a process for blending phosphoric acids of differing impurity content. This innovation allows for the combination of phosphoric acids with significantly different levels of soluble impurities, particularly magnesium compounds. The resulting blend exhibits a decreased tendency to form detrimental solids when converted to liquid fertilizer or during storage and transportation. The blending process can occur either before or after concentration steps, such as evaporation to 'merchant grade' or superphosphoric acid. For instance, wet process phosphoric acid produced by a dihydrate or gypsum process can be effectively blended with phosphoric acid produced by a hemihydrate process.
Career Highlights
Throughout his career, Francis M. Sale has worked with prominent companies, including Occidental Chemical Company and Occidental Chemical Agricultural Products, Inc. His experience in these organizations has contributed to his expertise in chemical processes and innovations.
Collaborations
Sale has collaborated with notable individuals in his field, including Harold E. Mills and David L. Murdock. These partnerships have likely enriched his work and expanded the impact of his inventions.
Conclusion
Francis M. Sale's innovative work in blending phosphoric acids has made a significant impact on the chemical industry. His patents reflect a deep understanding of chemical processes and their applications in agriculture. His contributions continue to influence the production and transportation of fertilizers, showcasing the importance of innovation in this field.