Mineral Processing II

Recommended Prerequisites

Have completed Mineral Processing I and have basic knowledge of geosciences.

Teaching Methods

Theorical:using audiovisual means to facilitate the understanding of concepts and methodologies.Students will participate in lectures, through its intervention or by presenting subjects within the discipline syllabusPractical: application of theoretical knowledge to practical cases, by solving problemsLaboratory: Carrying out laboratory tests of gravity separation in table and jig, and froth flotation tests in cell to a better understanding of these processes and to analysis some of the conditioners factorTutorial support in problem solving, and in preparation of the report.

 

Learning Outcomes

A) Provide the students with knowledge and broad understanding of the gravity concentration. Its main fields of use and main factors conditioners.

B) Provide the students with knowledge of the magnetic concentration and electrostatic processes. Their applications and main factors conditioners.

C) Provide the students with knowledge and broad understanding of concentration by froth flotation Its main applications and main factors conditioners.

D) Provide the students with knowledge of the concentration by leaching.

E) Provide the students with knowledge that will permit critical analysis of concentration diagrams and when faced with a given ore, know to implement a separation circuit.

As competences students should acquire: instrumental competence of analysis and synthesis, problem solving, personal competences of working in interdisciplinary teams, critical thinking, systemic skills to adapt to new circumstances, to independent learning, to plan and manage.

Work Placement(s)

No

Syllabus

1 - Introduction

2 - Gravity concentration: Principles of gravity concentration. Concentration in dense medium; concentration in pulsatile beds (jigging); concentration in shaking tables, concentration in spirals, concentration in Reichert cone.

3 - Magnetic concentration: general principles; magnetic susceptibility of minerals; factors affecting; types of magnetic separator; applications.

4 - Electrostatic concentration: general principles; electrical properties of minerals; electrostatic separators, applications.

5 - Concentration by froth flotation: principles of flotation; type of reagents; main affecting factors; flotation equipment (cell versus column); influence of the particle size; influence of the stability and froth height.

6 - Leaching: preparatory operations; dissolution; solids washing and solid/liquid separation; purification of the solutions; precipitation.

7 - Analysis of some mineral processing circuits 

Assessment Methods

Assessment
Laboratory work or Field work: 15.0%
Exam: 85.0%

Bibliography

Pita, F.A.G., (2012). Apontamentos de Concentração e Diagramas. Departamento de Ciências da Terra, FCTUC.
Luz, A.B.; França, J.A.; Alves S.C. (2010). Tratamento de Minérios (3ª Ed.). Centro de Tecnologia Mineral (CETEM). Rio de Janeiro.
Barry A. Wills; Tim Napier-Munn, (2006). Wills´s Mineral Processing Technology (7th Edition). An Introduction to the Practical Aspects of Ore Treatment and Mineral Recovery.
Mular, A.L., Halbe, D.N., Barratt, D.J. (2002).  Mineral Processing Plant Design, Practice, and Control. Proceedings. Society for Mining, Metallurgy, and Exploration, Inc. (SME). Littleton, Colorado USA.
Parekh, B.K., e Miller, J.D. (1999) Advances in Flotation Technology. Society for Mining, Metallurgy, and Exploration, Inc. (SME). Pp. 463.