Christopher A Fleming

Title: Christopher A Fleming: Innovator in Precious Metal Recovery

Introduction

Christopher A Fleming is a notable inventor based in Peterborough, Canada. He has made significant contributions to the field of precious metal recovery, holding a total of five patents. His innovative methods focus on improving the efficiency and sustainability of mining processes.

Latest Patents

One of his latest patents is titled "Methods for reducing cyanide consumption in precious metal recovery by reducing the content of intermediate sulfur oxidation products therein." This patent outlines a method for minimizing cyanide usage in precious metals mining extraction processes that involve sulfur-bearing ore bodies. The process includes providing a precious metal-bearing material with intermediate sulfur oxidation products and exposing it to sulfur dioxide gas, bisulfite ions, or sulfite ions. This exposure renders a portion of the intermediate sulfur oxidation products unreactive with cyanide, thereby reducing overall cyanide consumption.

Another significant patent by Fleming is related to a "Hydrometallurgical extraction process." This process treats copper feed materials containing gold and/or silver by simultaneously leaching these metals into an aqueous cyanide solution. The method also involves extracting copper, gold, and cyanide using an anion exchange resin, showcasing his innovative approach to metal recovery.

Career Highlights

Throughout his career, Christopher A Fleming has worked with prominent companies such as E.I. du Pont de Nemours and Company and Lakefield Research Limited. His experience in these organizations has contributed