Chemical Metallurgy (B-KUL-G0D04A)

6 ECTSEnglish36 First term
POC Chemie

The main objective of this course is to provide students with general basic knowledge about different aspects, problems and applications of chemical metallurgy and to provide them with an in-depth knowledge of leaching, solvent extraction and ion exchange. The principles of solvometallurgy are introduced.

 

Aim 1: The students can explain and apply the principles of metal ion solvation and complexation in concentrated solutions. The students are familiar with the concepts of activity and activity coefficient. They can calculate complex equilibria; they can construct and interpret speciation and phase stability diagrams. The students can determine the conditions for removal of metals from solution by selective precipitation.

 

Aim 2: The students understand the theory of solvent extraction. They can explain the different types of extractants, diluents and modifiers, the different equipment used in industrial solvent extraction, and the application of solvent extraction in extractive metallurgy.

 

Aim 3: The students understand the theory of ion exchange. They can explain the different types of ion exchange resins, ion exchange membranes, different column elution protocols, the application of ion exchange in extractive metallurgy, and the use of ion exchange in (waste) water treatment. The students can explain the advantages and disadvantages of solvent extraction versus ion exchange.

 

Aim 4: The students understand the major flow sheets in extractive metallurgy of different non-ferrous metals, and in particular those of copper and zinc. The student can explain hydrometallurgical unit operations.

 

Aim 5: The students can explain the extractive metallurgy of rare earths in all its aspects, have knowledge of the processing of different types of rare-earth ores, preparation of concentrates, separation of mixtures of rare earths, and transformation of rare-earth oxides in rare-earth metals.

 

Aim 6: The students understand the chemistry of processing of spent nuclear fuel in all its aspects, have knowledge of the PUREX process and advanced separation processes for removal of minor actinides (TRUEX, DIAMEX, SANEX, GANEX, TALSPEAK,...).

 

Aim 7: The students understand the principles of solvometallurgy (solvent leaching, nonaqueous solvent extraction, nonaqueous ion exchange); they are able to make a comparison between solvometallurgy and hydrometallurgy.

Students are familiar with basic knowledge of chemistry and physics.

Activities

6 ects. Chemical Metallurgy: Lectures (B-KUL-G0D04a)

6 ECTSEnglishFormat: Lecture36 First term
POC Chemie

Chemical fundamentals of hydrometallurgy

•           Ions in solution and their solvation

•           Activity in concentrated solutions and activity coefficients

•           Complex equilibria

•           Speciation and phase diagrams

•           Solubility products and selective precipitation

 

Leaching

•           Basic features of leaching

•           Leaching with acid-base reactions

•           Oxidative leaching

•           Leaching operations

 

Solvent extraction

•           Solvent extraction theory

•           Extractants

•           Diluents and modifiers

•           Equipment for solvent extraction

•           Solvent extraction practice

•           Applications of solvent extraction in extractive metallurgy

 

Ion exchange

•           Ion exchange theory

•           Ion exchange resins

•           Ion exchange membranes

•           Ion exchange practice

•           Applications of ion exchange in extractive metallurgy

 

Process flow sheets in extractive metallurgy

•           Copper

•           Zinc

•           Cobalt/nickel

•           Platinum-group metals

•           Rare earths

•           Uranium

•           Lithium

 

Processing of spent nuclear fuel

•           Principles of the nuclear fuel cycle

•           PUREX process

•           Advanced separation processes in the nuclear fuel cycle (TRUEX, DIAMEX, SANEX, GANEX, TALSPEAK, ..)

 

Solvometallurgy

•           Concept of solvometallurgy

•           Solvometallurgical unit processes: solvent leaching, nonaqueous solvent extraction, nonaqueous ion exchange

•           Examples of solvometallurgical processes

•           Solvometallurgy at KU Leuven

Course materials are available on Toledo.

Lecture notes + slides

Recommended reading (review papers) are provided as pdf-files.

Evaluation

Evaluation: Chemical Metallurgy (B-KUL-G2D04a)

Type : Partial or continuous assessment with (final) exam during the examination period
Description of evaluation : Oral, Report, Presentation
Type of questions : Closed questions, Open questions
Learning material : Course material, Calculator, Computer, Reference work


Permanent evaluation: During the academic year, the student gives a 15-minute presentation about a pre-agreed (small) part of the course. After that, questions will be asked by the teacher and the fellow students for 10 minutes. The assessment takes into account the content and form of the presentation, the answers to the questions, and whether or not the student has looked up additional information outside the course text. The permanent evaluation counts for 10/20 to the total exam result.
Final exam: The student receives a copy of a paper published in an international scientific journal and a number of questions about this paper that need to be answered. The answers are explained during the oral exam. The final exam counts for 10/20 to the total exam result.

The second trial is similar to the first trial, but with the difference that the student is offered the opportunity to give a new presentation, but without questions asked by fellow students.