David A Hempel

Title: Innovations of David A. Hempel

Introduction

David A. Hempel is a notable inventor based in Pocatello, Idaho. He has made significant contributions to the field of phosphate beneficiation, holding three patents to his name. His work focuses on improving the efficiency of phosphate extraction processes, which is crucial for the production of phosphoric acid.

Latest Patents

One of David A. Hempel's latest patents is titled "Increased reduction of magnesium content by use of inorganic promoters." This patent describes a process for beneficiating phosphate-containing ores. In this process, promoter reagents are added to the ore slurry before the addition of collectors and depressants for flotation of the carbonate and silica components. The promoters enhance the rejection of magnesium during the flotation steps, thereby improving the recovery of phosphates. This innovation allows for the achievement of acceptably low magnesium levels for phosphoric acid production in a single rougher stage. Preferred promoters mentioned in the patent include sodium carbonate and ammonium hydroxide.

Career Highlights

David A. Hempel is currently employed at J.R. Simplot Company, where he continues to apply his expertise in phosphate processing. His innovative approaches have contributed to advancements in the industry, making significant impacts on the efficiency of phosphate extraction.

Collaborations

Throughout his career, David has collaborated with notable colleagues such as Samuel M. Polinsky and Laurence W. Bierman. These collaborations have fostered a productive environment for innovation and development in phosphate beneficiation technologies.

Conclusion

David A. Hempel's contributions to the field of phosphate beneficiation through his patents and work at J.R. Simplot Company highlight his role as a significant inventor in the industry. His innovative processes continue to influence the efficiency of phosphate extraction, showcasing the importance of advancements in this field.