Mixing Course
This course is given in conjunction with the
Professional Development
Centre at the University of Toronto. The next
course will be posted in News
. Hyperlinks will bring you to the appropriate page
under Mixing
Fluid Mixing: Improving Product Yield, Throughput &
Quality by Optimizing Mixing in Reactors
Course Length:
3 Day Seminar: (e.g. 14-21 hours). The course has been typically 2.5 days. I leave the final 0.5 day for subjects of interest and those who don't want to stay for that are welcome to leave. I call this session "Chalk Talk" and we typically discuss anything of interest. It is time for the audience to try and put me on the spot!
Course Overview:
Course focus - Fluid mixing is rarely taught at any level in any school. Perfect mixing is always assumed. This course focuses on imperfect mixing and the pitfalls of neglecting the influence of mixing on chemical reactions. Introduction to the basics and in-depth coverage of topics of interest, such as multi-phase mixing and scale-up.
The course is broken down into 12 chapters spread over 3 days. It is presented in the form of PowerPoint presentations. Concepts are reinforced with quizzes. Some handouts are given and recommendations to books in the field.
Intended Audience:
Positions: Chemists, Biochemists, Chemical
Engineers, Technicians, Plant Operators
Work positions: Chemical Development Group, Pilot Plant Operations,
Process Optimization Group
Educational background: Experience in the chemical
and biochemical industry. Most participants have college
degrees, but the math and physical concepts are presented on
a basic level.
Industries: Bulk Chemical, Pharmaceutical,
Fine Chemicals, Specialty Chemicals, Cosmetics,
Tank Manufactures, Mixer Manufactures,
Fermentation Equipment Suppliers, Consultants,
Engineering Companies
Prerequisite: A keen interest in improving
the processes at your company or in having a better
fundamental understanding of the role that mixing plays.
Course Outline:
Day 1: INTRODUCTION AND SINGLE FLUID PHASE CONCEPTS
- Introduction -
Examples of mixing in a multitude of processes
- Mixing Basics -
Fundamentals, General Concepts, Terminology, Pipes,
Jets, Mixers
- Quantitative Mixing -
How is mixing quantified? - Flow Characterization,
Shear and Turbulence
- Power Correlations -
Power Number, Effect of Baffles and Impeller Position,
Effect of Number of Impellers
- Blending of a Single Phase -
Effect of Density and Viscosity Differences
- Single Phase Reactions -
Mixing Time Correlations, Degree of Mixing, Examples
Day 2: DUAL PHASE MIXING
- Solids Suspension -
Suspension Characteristics, Effect of Solid Density,
Concentration, Particle Size
- Solid-Liquid Mass Transfer -
Effect of Energy Intensity and Suspension
Characteristics
- Liquid-Liquid Mixing and Mass Transfer -
Solvent Extraction, Dispersions, Emulsions
- Gas-Liquid Mixing - Dispersion Characteristics,
Mass Transfer, Optimum Equipment
Day 3: OTHER MIXING PHENOMENA
- Heat Transfer in Agitated Tanks - Jacket,
Coils, Plates
- High Viscosity Blending - Anchors and Helical
Impellers, Others
- Scale-up: Blending, Solids Suspension,
Gas-Liquid Mass Transfer
- Chalk Talk: Discussion of Processes of
Interest from the Audience
Course Notes:
A hard copy of all power-point slides is given
to each participant on Day 1.
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