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| MDML7194 | Solution Mining | 3+0+0 | ECTS:7.5 | | Year / Semester | Fall Semester | | Level of Course | Third Cycle | | Status | Elective | | Department | DEPARTMENT of MINING ENGINEERING | | Prerequisites and co-requisites | None | | Mode of Delivery | Face to face | | Contact Hours | 14 weeks - 3 hours of lectures per week | | Lecturer | -- | | Co-Lecturer | None | | Language of instruction | Turkish | | Professional practise ( internship ) | None | | | | The aim of the course: | | The objective of the module is i) to develop an understanding of chemical and engineering aspects of in-situ and heap/dump leaching processes for the extraction of metals and industrial compounds from ores and other resources,
ii) to develop competence for the students to assess and develop processes
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| Programme Outcomes | CTPO | TOA | | Upon successful completion of the course, the students will be able to : | | | | PO - 1 : | have a essential knowledge of the chemical and engineering aspects of in-situ and heap/dump leaching processes | 1,4,10 | 1 | | PO - 2 : | develop a understanding of the technical, economic and environmental factors affecting selection and development of in-situ and heap/dump leaching processes. | 4,7 | 1 | | PO - 3 : | use the fundamental knowledge of mineral processing, chemistry and thermodynamics | 1,2 | 1,3 | | PO - 4 : | do the basic chemical and engineering calculations linked with hydrometallurgical processes | 1,2,4 | 1,3 | | PO - 5 : | develop a conceptual process flowsheet for the extraction of a particular metal or compound | 1,4 | 1,3 | | PO - 6 : | critically assess and analyse the industrial processes | 1,2,7 | 1,3 | | CTPO : Contribution to programme outcomes, TOA :Type of assessment (1: written exam, 2: Oral exam, 3: Homework assignment, 4: Laboratory exercise/exam, 5: Seminar / presentation, 6: Term paper), PO : Learning Outcome | | |
| Introduction to solution mining. The role and importance of solution mining for the production of metals and industrial compounds/salts. Leaching fundamentals. Design and practice of in-situ, heap and dump leaching operations. Ore agglomeration. Chemistry and principles of leaching, solution purification and recovery methods. Leaching of sulphides: Role and importance of bacteria in in-situ, heap and dump leaching, bioheap concept. Industrial practice for gold, copper, uranium, sulphur and salts. Treatment of waste solutions and spent heaps. |
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| Course Syllabus | | Week | Subject | Related Notes / Files | | Week 1 | Introduction to the module. Objectives and scopes, resources, references and assessment. Overview of the course content.
| | | Week 2 | Introduction to solution mining. The role and importance of solution mining for the production of metals and industrial compounds from ores. Leaching fundamentals. Overview of solution mining methods.
| | | Week 3 | Heap leaching and its practice. Ore preparation for heap leap leaching. Construction of heaps. Distribution of leach solution. Pregnant leach solution ponds. | | | Week 4 | Problems encountered in heap leaching practice. Agglomeration of fines. | | | Week 5 | Environmental factors in heap leaching. Environmental concerns. Site selection for heap leaching. Leaching pad design. Stability of heaps. | | | Week 6 | Heap leaching of gold ores. Gold ores. Chemistry of cyanide leaching of gold. Effect of particle size. Models for gold heap leaching. Estimation of fractional extraction of gold. | | | Week 7 | Treatment of gold loaded leach solutions for gold recovery. Activated carbon adsorption and electrowinning. Merrill-Crowe process. Management of cyanide wastes. | | | Week 8 | Mid-term exam | | | Week 9 | Heap leaching of oxidised and sulphide copper ores. Copper oxides and their dissolution characteristics. Leaching kinetics and models of oxide ores. Estimation of metal extraction. | | | Week 10 | Copper heap leaching practice. Thin layer leaching. Acid cure leaching of oxide ores. Heap leaching of sulphide copper ores. Ferric cure leaching.
| | | Week 11 | Dump leaching of ores containing sulphides. Dissolution characteristics of copper sulphides in ferric leaching. Bioheap leaching.
| | | Week 12 | Treatment of pregnant leach solutions for copper recovery. Solvent extraction and electrowinning. Cementation. | | | Week 13 | In-situ leaching. General features of in-situ leaching. In-situ leaching of uranium ores. Downstream processes for the recovery of uranium from pregnant leach solutions. | | | Week 14 | Application of in-situ leaching for recovery of industrial compounds. Salts: sodium chloride, potash, soda ash, borate, sodium sulphate and lithium. Sulphur. | | | Week 15 | Overview of the module and make up for.
| | | Week 16 | End-of-term exam | | | |
| 1 | Bartlett R.W. 1998. Solution Mining: Leaching Fluid Recovery of Materials. 2nd Edition, Gordon and Breach Sci. Pub. | | | |
| 1 | Habashi F. 1999. Textbook of Hydrometallurgy. 2nd Edition, Quebec City, Canada, ISBN 2-980-3247-7-9. | | | 2 | Adams M.D. 2006. Advances in Gold Ore Processing (Developments in Mineral Processing, Volume 15), Elsevier Science, ISBN 0-444-51730-8. | | | |
| Method of Assessment | | Type of assessment | Week No | Date | Duration (hours) | Weight (%) | | Mid-term exam | 8 | | 3 | 30 | | Homework/Assignment/Term-paper | 14 | | 8 | 20 | | End-of-term exam | 16 | | 3 | 50 | | |
| Student Work Load and its Distribution | | Type of work | Duration (hours pw) | No of weeks / Number of activity | Hours in total per term | | Uygulama | 2 | 3 | 6 | | Ödev | 6 | 4 | 24 | | Total work load | | | 30 |
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