Franz A Posey

Title: Franz A. Posey: Innovator in Silver Recovery and Uranium Processing

Introduction

Franz A. Posey is a notable inventor based in Concord, TN (US), recognized for his contributions to the fields of environmental science and chemical engineering. He holds a total of 3 patents, showcasing his innovative approaches to complex problems in waste management and resource recovery.

Latest Patents

One of Posey's significant patents is a method for the recovery of silver from waste photographic fixer solutions. This method effectively recovers silver from spent photographic fixer solutions while ensuring that the effluent is essentially silver-free, making it suitable for discharge into commercial sewage systems. The process involves introducing the spent photographic fixer solution into an alkaline hypochlorite solution, maintaining oxidizing conditions to destroy silver ion complexing agents. The addition of hydrazine monohydrate forms a reducing solution that precipitates silver, which can be easily removed. Experimental tests indicate that over 99.99% of the original silver can be efficiently extracted using this method, while also significantly reducing the chemical and biological oxygen demand of the remaining effluent.

Another notable patent involves removing oxygen from a solvent extractant in a uranium recovery process. This improvement enhances uranium recovery from phosphoric acid solutions by sparging dissolved oxygen with a nonoxidizing gas before introducing the solutions into the reductive stripping stage. This technique minimizes the negative effects of oxygen, such as excessive consumption of elemental or ferrous materials and the accumulation of complex iron phosphates.

Career Highlights

Throughout his career, Franz A. Posey has worked with esteemed organizations, including the United States of America as represented by the United States and the United States Energy. His work has significantly impacted the fields of environmental protection and resource recovery.

Collaborations

Posey has collaborated with notable individuals in his field, including Aloysius A. Palko and Donald E. Horner. Their combined expertise has contributed to advancements in the technologies they developed.

Conclusion

Franz A. Posey's innovative patents and career achievements highlight his significant contributions to environmental science and chemical engineering. His work continues to influence practices in waste management and resource recovery, showcasing the importance of innovation in addressing environmental challenges.