Course curriculum

  • 1

    Introduction

    • Welcome video

      FREE PREVIEW

    • Expected starting competences

    • Meet the teacher

      FREE PREVIEW

    • Learning objectives

    • What do you want to learn?

    • Have a look at what other students want to learn

    • Present yourself to your classmates

    • Have a look at your classmates

    • Become familiar with the learning platform

    • Good practices to use this course
  • 2

    Introduction to extraction processes

    • Extraction

    • Principle of liquid-liquid extraction

    • Requirements for the application of extraction processes

    • Extraction in different scales

    • Quiz - process scheme

    • Extraction solvents

    • Quiz - solvent requirements

    • Applications of solvent extraction

    • What have you learned about liquid-liquid extraction?
  • 3

    Principles of calculation for the design of extraction processes

    • Fundamentals for the design of extraction processes

    • Triangular diagrams

    • Self-assessment 1 - Gibbs triangle diagram

    • Triangular diagrams - determination of the extraction concentrations

    • Self-assessment 2 - Separation of isopropyl alcohol

    • Determination theoretical extraction stages - ternary systems

    • Self-assessment 3 - Extraction of caprolactam

    • Calculations based on operating diagrams

    • Self-assessment 4 - Theoretic number of steps
  • 4

    Reactive extraction of Zinc - an example of metal processing

    • Introduction

    • Reactive extraction

    • Flow sheet quizze

    • Zinc - Introduction

    • Reactive extraction of zinc

    • Open source literature - Near-zero-waste processing of low-grade, complex primary ores and secondary raw materials in Europe: technology development trends

    • What have you learned about reactive extraction?
  • 5

    Equipment for liquid-liquid extraction

    • Introduction

    • Extraction columns

    • Mixer-settler systems

    • Zentrifugal extractors

    • Drag and Drop - Extraction equipment

    • What have you learned about liquid-liquid extraction equipment?
  • 6

    Continuous destillation - Rectification

    • Introduction

    • Continuous distillation (rectification)

    • Multi-stage and continuous destillation processes

    • Find the words

    • Basic principles of process calculation

    • Self-assessment 1 - Separation of isopropyl alcohol

    • Zinc - distillation processes

    • What do you know about rectification?
  • 7

    Rectification - Practical

    • Introduction

    • RemotLab-Introduction

    • Script

    • Data set for the short report

    • Report - rectification
  • 8

    Conclusion

    • Concluding video

    • What did you learn?

    • How can we improve this course?

    • Read what others want to improve on this course
  • 9

    Literature

    • References
  • 10

    Evaluate this course

    • How this evaluation is structured

Course description

This course will give you an insight into the processes of liquid-liquid extraction and distillation. The focus is thereby on the introduction of technical possibilities, basic calculations and necessary considerations for process design. In addition, the course will present the potential application of extraction and distillation for the recovery of valuable metals based on the example of zinc. Experimental investigations of salt-solution equilibria will be explained as well as the theoretical description of these equilibria by quantitative calculations and modelling (Pitzer ion interaction model). We will introduce you to the geochemical modelling software PHREEQC in such a way that by the end of the course you can carry out your own multi-temperature calculations of solubility and precipitation processes in complex electrolyte solutions.

Instructor(s)

Martin Bertau

Director of the Institute of Chemical Technology @ TU Bergakademie Freiberg Martin Bertau received his doctorate from the Albert-Ludwigs-University of Freiburg in 1997 and afterwards led the biotechnology department of Rohner, a company belonging to the Dynamit Nobel Group, in Basel. In 2005 he habilitated at the TU Dresden in organic chemistry and biochemistry. Since 2006, Martin Bertau is head of the Institute of Chemical Technology at the TU Bergakademie Freiberg. His research focuses on resource-saving and zero waste processes for the extraction and recycling of raw materials such as strategically important metals and semi-metals (rare earths, lithium, indium, germanium), phosphorus, the use of carbon dioxide as well as lignocellulose as starting materials for basic chemicals.