Company Filing History:
1 out of 6 
1 out of 832,812 Years Active: 2004-2009
Title: John Anthony Willis: Innovator in Gold Recovery Techniques
Introduction
John Anthony Willis, an inventive mind from Sherwood, AU, has made significant contributions to the field of precious metal recovery. With a total of two patents to his name, Willis has focused on enhancing gold extraction processes, particularly from refractory ores. His innovations address the need for more efficient and environmentally friendly methods in the mining industry.
Latest Patents
Willis's latest patents showcase his commitment to reducing cyanide consumption in gold recovery. One of his notable inventions is a method for extracting precious metals, which involves pre-treating refractory ore through fine grinding and initial leaching with inexpensive limestone. This process maintains an alkaline environment while carefully controlling oxidation levels to improve the overall efficiency of cyanide leaching.
His second patent focuses on how to treat precious metal-bearing minerals. In this method, the mineral composition is milled to a particle size of less than 25 microns, followed by leaching with a solution of lime and/or limestone, in the presence of oxygen. This innovative approach not only facilitates efficient extraction but also significantly minimizes environmental impact by reducing cyanide consumption by more than two-thirds.
Career Highlights
Throughout his career, John Anthony Willis has worked with reputable organizations, including Xstrata Queensland Limited, where he sharpened his skills and contributed to advancements in mineral processing. His experience in the field has played a vital role in his patent development and innovation efforts.
Collaborations
Collaborating with esteemed professionals, such as Michael Matthew Hourn and David Winborne, Willis has been able to enhance his research and development capabilities. These partnerships have allowed him to tackle complex challenges in gold recovery processes and bring forth innovative solutions that benefit the mining sector.
Conclusion
John Anthony Willis exemplifies the spirit of innovation within the field of precious metal extraction. His two patents are a testament to his dedication to improving methods in an industry that faces environmental scrutiny. As Willis continues to explore and develop more effective technologies, his contributions to gold recovery will undoubtedly shape the future of the mining industry.