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 Expert  718780

Expert in Hydrometallurgy and Tailings

Available for your Consulting and Expert Witness Needs

Education Work History Career AccomplishmentsPublicationsConsulting Services Expert Witness

Summary of Expertise: Listed with other top experts in: 
Expert has wide experience in hydrometallurgy, and has designed processes incorporating unit operations such as roasting, leaching, liquid-solids separation, purification by solvent extraction, ion exchange, and precipitation. He has processed a wide range of ores for the recovery of many high purity final products, taking into account aspects of economics, energy, and the environment.


Expert has more than 36 years of experience in the use of solvent extraction for metals separation and recovery. As a result of personal research, along with his directing R&D in this area, a number of solvent extraction processes were developed. He has recovered metals which include uranium, thorium, zirconium, tantalum, niobium, rare earths, copper, cobalt, nickel, iron, zinc, manganese, molybdenum, cadmium, gold, platinum, and palladium. A number of patents have been issued for Expert's work. He has written a 2-volume authoritative test on the subject which is used throughout the world. Expert's background has also involved small-continuous pilot plants, plant start-up, and troubleshooting. He has presented short-courses on "Solvent Extraction" in many countries throughout the world. These have either been "open courses" or "in-house" company courses.

metal recovery


metal separation


solvent extraction


uranium recovery

From the beginning of his career and continuing throughout it, Expert has been closely associated with Canada's nuclear industry. This has involved the development of various process technologies in several of the uranium mills. He has worked with the installation of unit operations which included involvement with the research and the start-up of Canada's first solvent extraction plant. He has also developed separation technology and worked on the scale-up to a successful process plant for producing nuclear-purity zirconium (hafnium free) for cladding uranium dioxide nuclear fuel pellets for Canada's CANDU power reactor.



uranium processing


uranium refining

The major concern of the mining industry today is that of providing for a safe environment during and after the mine ceases operation. This concern for the environment was recognized by Expert a number of years ago, and consequently he initiated research programs to develop methodology to optimize the technological changes that would be required. Eventually an authoritative text on tailings management was published, which is now used internationally. Tailings management designs are now being patterned after the methodology and systems that Expert has helped develop. He has developed a methodology for assessing and testing various types of tailings. He has used simulated accelerated weathering tests to provide designs for disposal techniques, assessment of acid generating potential on land and under water, and the development of cover techniques for close-out. Expert has presented short-courses on "Tailings Management" in many countries throughout the world. These have either been "open courses" or "in-house" company courses.

mine-tailings management

Show Secondary and Basic Areas of Expertise

Often requested
with this expert:

Hydrometallurgy, Pyrometallurgy, and Extraction and...
Extractive-Metallurgy, Hydro-Metallurgy, Pyro-Metallurgy,...
Engineering: Mining, Minerals, Metallurgy, Chemicals,...
Mercury Recovery/ Recycling

Year   Degree   Subject   Institution  
1993   Doct. Applied Scienc     University of Melbourne - Australia  
1952   B.S.   Chemistry   Dalhousie University  

Work History:
Years   Employer   Department   Title  

1989 to







1967 to 1988


CANMET, Department of Energy, Mines & Resources


Extractive Metallurgy, Mineral Science Labs, Mines Branch,




1953 to 1967


Eldorado Nuclear Ltd.


Chemistry, R & D Group




Career Accomplishments:

Expert is a Fellow of the Chemical Institute of Canada and a member of ACS, AIME and CIM. He is a Life Member of CIM and AIME (TMS).


He was awarded the first CIM Hydrometallurgy Sherritt Award in 1977. He has received numerous additional awards and recognition. He is listed in American Men and Women of Science, and Who's Who.

Publications and Patents Summary

He has published over 100 technical papers, as well as significant chapters in textbooks. Expert holds 16 patents with 10 applications pending.

Selected Publications and Publishers  
 - Elsevier Science Publishers  
 - Gmelin Handbook of Inorganic Chemistry, Springer-Verlag  
 - Science & Technology of Tributyl Phosphate, CRC Press  
 - Chapters in Environmental Behaviour of Radium. International Atomic Energy Agency  

Consulting Services:
Selected Consulting Examples:
  • In Australia, for example, numerous mines for Cu, U, Ni, Co have required assistance in the development of process technology and plant design. Following plant operation, follow-up visits were made periodically to assess operating problems, and make necessary changes based on on-site plant tests and lab research.
Recent Client Requests:
  • Expert in metallurgy uranium extraction from tantalite for consulting on uranium extraction from tantalite ore.
  • Expert for consulting on Chemical Distillation of Zinc Cake.
  • Expert in Tungsten processing
  • Hydrometallurgical treatment expert for consulting on pyrometallurgical treatment of battery waste and EAF dust.
Click the green button above to contact Expert for a free initial screening call regarding your expert consulting needs.  Expert is available for consulting to corporate, legal and government clients.  Remember, your initial screening call to speak with Expert is free.

Expert Witness:
Click the green button above to contact Expert for a free initial screening call regarding expert testimony, litigation consulting and support, forensic services, or any related expert witness services.  A few litigation needs include product liability, personal injury, economic loss, intellectual property (patent, trademark, trade secret, copyright), and insurance matters.  Remember, your initial screening call to speak with Expert is free.

International Experience:
Years   Country / Region   Summary
1969 to   Brazil   Expert assessed the treatment of material for the separation and recovery of rare earths.
1994 to   Egypt   He conducted an assessment and evaluation of uranium resources and processing potential for treatment and recovery of uranium.
1990 to   Moa, Cuba   He worked on the development of technology for the recovery of nickel and cobalt from laterites.
1995 to 1998   Hengyang, China   He worked on the development of technology for improved recovery of, and higher grade uranium products from, a mine.

Language Skills:
Foreign Language   Description
French   He understands some French, reads reasonably, and writes to an extent.

Additional Skills and Services:
Other Skills and Services

He has been a plenary lecturer at international conferences in Canada, USA, USSR, China, Japan, Cuba, Australia, UK, Brazil, and Germany.


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