Company Filing History:
2 out of 536 
1 out of 424 Years Active: 1983-1993
Title: Kazi E Haque: Innovator in Gold Recovery and Leaching Technologies
Introduction
Kazi E Haque is a notable inventor based in Ottawa, Canada. He has made significant contributions to the field of materials recovery and leaching technologies. With a total of 3 patents, his work focuses on innovative methods for extracting valuable materials from various solutions.
Latest Patents
One of his latest patents is titled "Recovery of dissolved gold by sodium borohydride (NaBH.sub.4) reduction." This process involves the direct recovery of gold from cyanide leach liquor, thiourea leach liquor, or Bio-D leach liquor. The method comprises reduction precipitation of gold from the solution by adding stabilized alkali metal borohydride, preferably sodium, potassium, lithium, or ammonium borohydride, at ambient temperature and pressure. High purity gold is obtained by heating the reduced precipitate to about 1200°C. The barren solution can be recycled to the upstream process, making it an efficient method for gold recovery.
Another significant patent is "Use of microwave radiation to eliminate foam in ore leaching." This method addresses the issue of foam above a slurry of corrosive liquid and solid matter, which is caused by gas evolved from the reaction between the heated corrosive liquid and the solid matter. By providing heating energy through microwaves, this method has proven particularly useful in the sulphuric acid leaching of ore concentrates in the production of beryllium hydroxide.
Career Highlights
Throughout his career, Kazi E Haque has worked with various organizations, including Her Majesty the Queen in Right of Canada, as represented by the Minister, and Canadian Patents & Development Ltd. His innovative approaches have contributed to advancements in the field of materials recovery.
Collaborations
Kazi has collaborated with notable individuals such as James M Skeaff and Gordon M Ritcey. Their combined expertise has furthered the development of effective leaching and recovery technologies.
Conclusion
Kazi E Haque's contributions to the field of gold recovery and leaching technologies highlight his innovative spirit and dedication to advancing materials recovery methods. His patents reflect a commitment to efficiency and sustainability in resource extraction.