Expert Course on Solvent Extraction

The Expert Course on Solvent Extraction aims at collecting information on solvent extraction spanning the full range from beginners to experts. The extraction basics are copied from the lecture 'Thermal Unit Operations' and indicated as such in the list below. The expert contributions are partly contained in a lecture on process intensification but also contain specialist discussions beyond any lecture actually given. It is the goal to include the specialist topics also on a lecture-like level, where special focus is directed towards explaining the theoretical background as well. The lectures are recorded on video and uploaded to YouTube in the playlist 'Expert Course on Solvent Extraction'. Continually further topics will be recorded and uploaded. Here the links to the individual manuscript chapters as well as to the corresponding videos are collected. Where a chapter subtitle is not associated to a video of pdf, the corresponding content is part of the previous pdf or video. Crossed out topics are planned already and will be uploaded in the near future. The numbers refer to the chapters and subchapters of the full manuscript. The order of the videos is that in which the course is practically presented, i.e. is arranged in a didactically feasible way. For the expert section they are arranged in a logical manner. The order of chapters in the manuscript is different, because it is intended as a reference mansucript, which follows a more systematic approach.


Extraction-related content of the lecture Thermal Unit Operations


pdf              Thermal Unit Operations (front matter)

pdf              1 Introduction

        video     1.1 Overview

        video     1.2 Principles of thermal separation processes

                         1.3 Concept of a theoretical stage

        video     1.4 Methods of thermal process design

        video     1.5 Examples of thermal separation processes

                         1.6 Process intensification

                    3 Distillation, Rectification

       video     3.1 Introduction and historic background

       video     3.2 Single-stage distillation

       video         3.2.1 Batchwise single-stage distillation

       video         3.2.2 Continuous single-stage distillation

       video         3.2.3 A cascade of single-stage distillations

                        3.4 The McCabe-Thiele method for a rectification column with arbitrary thermal state of feed

       video         3.4.1 Continuous rectification (multistage distillation)

       video         3.4.2 Equimolar evaporation and condensation

       video         3.4.3 The rectifying section

       video         3.4.4 The stripping section

       video         3.4.5 The feed stage


       video         3.4.6 McCabe-Thiele diagram

       video         3.4.7 Limiting values and optimal choice of reflux ratio

                        3.7 FUG-Correlation

       video         3.7.1 Nmin using Fenske’s model

       video         3.7.2 vmin using Underwood’s model

                            3.7.3 v and N using Gilliland’s method

       video     3.5 McCabe-Thiele diagram for a rectifying or stripping column

       video     3.6 Batch rectification with a rectifying column

                            3.6.1 Constant distillate composition

                            3.6.2 Constant reflux ratio

                            3.6.3 Comparison with single-stage distillation

pdf             2 General considerations on counter-current processes

       video     2.1 Step construction, general McCabe-Thiele diagram

       video         2.1.1 Balancing the column or a characteristic section of a column

       video         2.1.2 Side-stream withdrawal from L

                            2.1.3 Side-stream withdrawal from G

                            2.1.4 Addition of feed corresponding to an internal flow

       video         2.1.5 Addition or removal of streams with arbitrary composition

       video         2.1.6 Addition of transfer component to one of the carriers

                            2.1.7 Feed to a distillation column or as two-phase mixture

                            2.1.8 Intermediate heating and cooling in rectification

       video         2.1.9 Distillation-column top with total condenser

                            2.1.10 Distillation-column top with partial condenser

                            2.1.11 Distillation-column bottom

                            2.1.12 Distillation reboiler heated by saturated vapor

                            2.1.13 Distillation reboiler heated by superheated vapor

       video         2.1.14 Combination of several components to one complete distillation column

       video     2.2 Average flowrate of components in separation equipment

                        2.3 Short-cut equations

       video         2.3.1 Single theoretical stage

                            2.3.2 Multistage cross-current process

       video         2.3.3 Multistage counter-current process

                   5 Solvent Extraction

       video     recapitulation thermodynamics

       video     5.1 Introduction

                     5.2 Single-stage extraction

                            5.2.1 Triangular diagram

                            5.2.2 Distribution diagram

                            5.2.3 Analytical method

                     5.3 Cross-current extraction

                            5.3.1 Triangular diagram

                            5.3.2 Distribution diagram

                            5.3.3 Analytical method: Kremser-equations

                     5.4 Counter-current extraction

                            5.4.1 Triangular diagram

                            5.4.2 Distribution diagram

                            5.4.3 Analytical method: Kremser and Tiller-Tour equations

                            5.4.4 Design with rate-based methods for counter-current extraction columns

                     5.5 Solvent extraction with feed

                     5.6 Choice of solvent


Chapters from advanced course and expert workshops


pdf video cascaded option tree and optimal solvent selection

                     salt influence on interfaces

        video     salt influence on interfaces - electrostatic potential difference

                         salt influence on interfaces - interaction of several salts

                         salt influence on interfaces - quantifying the potential difference

                         salt influence on interfaces - effects relevant for solvent extraction

        video crud

                     drop-based extraction column design

                         drop sedimentation

                         mass transfer without internals

                         internals influence on mass transfer

                         drop coalescence

                         drop splitting

                         ReDrop simulations

                         application to challenging systems

                     drop-based settler design

                         with average drop size

                         accounting for drop-size distribution

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