Howard Wayne Hayden

Title: Howard Wayne Hayden: Innovator in Copper Recovery Technology

Introduction

Howard Wayne Hayden is a notable inventor based in Columbia, MD (US). He has made significant contributions to the field of hydrometallurgy, particularly in the recovery of copper from sulfide ores. His innovative approach has paved the way for more efficient methods in metal extraction.

Latest Patents

Howard Wayne Hayden holds a patent for a process titled "Acid ferric sulfate leaching of copper sulfide concentrates." This invention focuses on hydrometallurgically recovering copper from chalcopyrite and other sulfide ores. The process involves a pretreatment step of fine grinding the concentrates to a particle size of one micron or less. The finely ground copper concentrate is then leached in an acidified ferric sulfate solution, allowing for effective copper recovery. Following the leaching step, solid-liquid separation is performed, and elemental sulfur can be recovered. Additionally, iron removal is achieved through the crystallization of iron salts, with ferrous ion being oxidized to ferric ion for recycling.

Career Highlights

Throughout his career, Howard Wayne Hayden has demonstrated a commitment to advancing metallurgical processes. His innovative patent reflects his expertise and dedication to improving copper recovery methods.

Collaborations

Howard has collaborated with notable colleagues, including Milton E Wadsworth and Jan D Miller. Their combined efforts have contributed to the development of effective techniques in the field of hydrometallurgy.

Conclusion

Howard Wayne Hayden's contributions to copper recovery technology highlight his role as an influential inventor. His patented process showcases the potential for innovation in the extraction of valuable metals from sulfide ores.