John S McEwan

Title: Innovations of John S McEwan

Introduction

John S McEwan is a notable inventor based in Parachute, Colorado. He has made significant contributions to the field of mineral recovery and solution mining. With a total of 5 patents to his name, McEwan's work has advanced the methods used in extracting beneficial minerals from geological formations.

Latest Patents

One of McEwan's latest patents is a method for solution mining and recovery of beneficial minerals. This innovative approach involves heating a wellfield injection brine to temperatures between 100° C. and 250° C. The heated brine is injected into an underground wellfield to dissolve soluble minerals, creating a hot brine solution. The process includes removing the hot brine solution and recovering the soluble minerals by cooling the solution to temperatures between −10° C. and 5° C., which causes the minerals to precipitate in solid form.

Another significant patent focuses on sodium carbonate and sodium bicarbonate production. This method allows for the extraction of nahcolite from geological formations that are low in nahcolite. It involves injecting high-pressure water, which may include recycled aqueous solutions of bicarbonate and sodium carbonate, at temperatures of at least 250° F. The process dissolves nahcolite in the hot water, forming a production solution that can be processed to yield sodium carbonate and optionally sodium bicarbonate.

Career Highlights

Throughout his career, McEwan has worked with several companies, including American Soda, LLP and Solvay Chemicals GmbH. His expertise in solution mining has made him a valuable asset in the industry.

Collaborations

Some of McEwan's notable coworkers include Max E Ramey and Kevin L Green. Their collaborative efforts have contributed to the advancements in the field of mineral recovery.

Conclusion

John S McEwan's innovative methods in solution mining and mineral recovery have significantly impacted the industry. His patents reflect a commitment to advancing technology in this field, showcasing his expertise and dedication to innovation.