Company Filing History:
Years Active: 1979-1980
Title: Guerry H McClellan: Innovator in Phosphate Rock Processing
Introduction
Guerry H McClellan is a notable inventor based in Killen, Alabama, recognized for his contributions to the field of chemical beneficiation of phosphatic limestone and phosphate rock. With a total of 2 patents, McClellan has made significant strides in improving the extraction processes of valuable minerals.
Latest Patents
His latest patents focus on a method of selectively extracting calcite and dolomite away from apatite in phosphate rock or phosphatic limestone. This innovative process involves treating the phosphate rock or phosphatic limestone with a mixture of sulfur dioxide, water, and a carbonyl compound. The method allows for the separation of solids from the liquid phase, where the solids primarily consist of apatite mixed with clay, quartz, and other accessory minerals originally present in the rock. The solids are then heated to remove adhering sulfur dioxide, water, and carbonyl. The liquid phase contains carbonyl, water, sulfur dioxide, and magnesium and calcium ions. By heating this liquid, CaSO.sub.3.1/2H.sub.2 O is preferentially precipitated, which is then filtered off. The remaining filtrate is further heated to precipitate MgSO.sub.3.3H.sub.2 O, largely free of CaSO.sub.3.1/2H.sub.2 O. All off gas and filtrate are returned to the process, enhancing efficiency.
Career Highlights
Guerry H McClellan is associated with the Tennessee Valley Authority, where he applies his expertise in mineral processing. His work has contributed to advancements in the field, particularly in the sustainable extraction of phosphate resources.
Collaborations
Throughout his career, McClellan has collaborated with notable colleagues, including John F Phillips and John F McCullough, further enriching his research and development efforts.
Conclusion
Guerry H McClellan's innovative approaches to phosphate rock processing exemplify the impact of dedicated inventors in the field of mineral extraction. His contributions continue to influence sustainable practices in the industry.