principles and practice of leaching
TRANSCRIPT
7/25/2019 Principles and Practice of Leaching
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SAIChE-Accredited
Professional Development Course
For further information contact Natascha on [email protected] or 072 531 9717 1
Principles and Practice of Leaching
“Valuable to both leaching operators and suppliers. Builds broad understanding
through the underlying fundamentals”
“Excellent course on understanding leaching from both practitioner and academic
points of view”
1. Purpose
This course covers the basic principles and practice of leaching. Topics include: mass
balances, kinetics, batch operations, continuous operations, mixing and gas
dispersion.
2. Accreditation
The course is accredited with the South African Institute of Chemical Engineers
under Validation No. SAIChE-218. Attendance at the course will entitle the delegateto 3 CPD credits.
3. Course Outcomes
Having done the course you will be able to:
understand the concepts of batch and continuous mass balances for
leaching reactors, Eh-pH diagrams, the shrinking core model, and the
primary variables and parameters that determine the performance ofleaching operations.
create a spreadsheet with a batch mass balance for both homogeneous
and hetereogeneous reactions.
determine the key criteria for the performance of leaching reactors.
articulate a study program to determine leaching kinetics.
understand the scale-up criteria for a leaching reactor.
understand the influence of leaching operations on downstream
operations.
understand the main concepts of control leaching reactors.
communicate effectively with leaching vendors and reagent suppliers.
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SAIChE-Accredited
Professional Development Course
For further information contact Natascha on [email protected] or 072 531 9717 2
4. Outline of Course Material
Topic More information
Chapter 1 Leaching chemistry Reaction classification
Chapter 2 Hydrometallurgical flowsheets Typical flowsheets
Chapter 3 Leaching reactors Reactor classification
Chapter 4 Chemical basis of leaching –
Thermodynamics
Eh-pH diagrams
Chapter 5 Batch leaching reactors Mass balances
Chapter 6 Continuous leaching reactors Mass balances
Chapter 7 Chemical basis of leaching – kinetics Shrinking particles
Chapter 8 Mixing in leaching Suspension of particles
Chapter 9 Gas-liquid mass transfer Dispersion of gas
Chapter 10 Continuous reactors in more detail Interactions between all these
parameters
Chapter 11 Heap Leaching Operations
Chapter 12 Sulphur Problem of sulphur
Chapter 13 Bacterial leaching Reactions, equipment
5. Who should attend this course?
Engineers and scientists employed in hydrometallurgical operations or research
scientists developing new processes will benefit from this course.
The course is designed to systematically lead delegates with a basic scientific
background through the specifics and novel aspects of leaching reactors. Prior
knowledge of leaching is not required
6. Speakers
The course is presented by Dr Frank Crundwell, a registered Pr.Eng. and Fellow of the
SAIMM, with considerable experience in leaching analysis and design. He has
consulted widely to all the major mining companies in South Africa and has over 70
publications in the field of hydrometallurgy. He holds a PhD from the University of
the Witwatersrand, Johannesburg and is Managing Director of CM Solutions, a
process engineering firm that partners with clients from test work to design.
7/25/2019 Principles and Practice of Leaching
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SAIChE-Accredited
Professional Development Course
For further information contact Natascha on [email protected] or 072 531 9717 3
7. Outline of Programme
Day 1 10 May 2016
08:00 - 08:30 Coffee, registration, get-to-know everyone
08:30 - 10:00 Session 1: Leaching chemistry, flowsheets, and reactors.
10:00 - 10:15 Tea
10:15 - 12-30 Session 2: Thermodynamics and kinetics
12:30 - 13:30 Lunch
13:30 - 15:00 Session 3: Batch reactors and kinetics
15:00 - 15:15 Tea
15:15 - 17:00 Session 4: Continuous reactors
Day 2 11 May 2016
08:00 - 10:00 Session 5: Continuous leaching reactors
10:00 - 10:15 Tea
10:15 - 12-30 Session 6: Mixing and gas mass transfer
12:30 - 13:30 Lunch
13:30 - 15:00 Session 7: Continuous leaching reactors in more detail
15:00 - 15:15 Tea
15:15 - 17:00 Session 8: Continuous leaching design
Day 3 12 May 2016
08:00 - 10:00 Session 9: Heap leaching
10:00 - 10:15 Tea
10:15 - 12-30 Session 10: Sulphur
12:30 - 13:30 Lunch
13:30 - 15:00 Session 7: Bacterial leaching
15:00 - 15:15 Tea
15:15 - 17:00 Session 8: Closing items