TECHNIKON PRETORIA

FACULTY OF ENGINEERING AND THE BUILT ENVIRONMENTDEPARTMENT OF CHEMICAL AND METALLURGICAL ENGINEERING

STUDENT COURSE GUIDE

NAME OF COURSE

Applied Mineral processing III

NQF LEVEL NQF CREDITS QUALIFICATION & SAQA IDCOURSE CODE

60.083National Diploma: Metallurgical Engineering (NDMY03)SAQA ID no: 72578ANP301T

COMPILED BY: RAMAKOKOVHU MM(2014)

COPYRIGHT: Tshwane University of TechnologyPrivate Bag X680PRETORIA0001Apart from any quotation for the purposes of research criticism or review as permitted under the Copyright Act, no part of this book may be reproduced or transmitted in any form or by any means, electronically or mechanically, including photocopy and recording, without permission in writing from the publisher.All rights reserved. All rights reserved. Apart from any reasonable quotations for the purposes of research criticism or review as permitted under the Copyright Act, no part of this book may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy and recording, without permission in writing from the publisher.

Printed and distributed by:FACULTY OF ENGINEERING AND THE BUILT ENVIRONMENTTshwane University of TechnologyPrivate Bag X680Pretoria0001

ORGANISATIONAL COMPONENT CONTENTS:1.Welcome52.Staff52.1Contact Details52.2Staff availability63. Requirements, resources and recommended material.63.1Requirements for the course64. Code of conduct84.1 Attendance84.2 Classroom behaviour84.3 Responsibility of students81. Overview of the course81.1 Purpose of the course91.2 Links to other subjects91.3 Course outcomes92. Assessment92.1 Assessment methods and criteria92.2Assessment rules92.3 Marking system92.4 Year mark92.5 Moderation103. Course content and schedule of tests and assignments103.1Course structure and schedule of tests and assignments103.2Learning outcomes and assessment criteria133.3 Generic outcomes and critical cross-field outcomes174. Glossary of terms175. Appendices18

SECTIONAORGANISATIONAL COMPONENT

1.WelcomeWelcome to Applied Mineral Processing lll semester course. This is a practical course in metallurgical engineering. It is offered via compulsory lectures for over 14 weeks. This course is designed to give the engineering student an adequate practical knowledge and understanding of the operations carried out in mineral processing. At the end of this semester you would have acquired the practical knowledge and understanding you need to pursue a career in minerals processing . 2.Staff2.1Contact DetailsNAMECAMPUSROOM NOTEL NO and E-MAILCONSULTATION TIMESACADEMIC FUNCTION

Ms M.M. RamakokovhuPretoria3-725012382 4902 ramakokovhum@tut.ac.zaBy appointmentLecturer

Ms. R. NgakaPretoria3-707012382 3514AvailableDepartmental administrator

Ms. M. MashiloPretoriaLibrary Building 20012382 6121AvailableEng. Librarian

Dr. N NaudePretoria3-729012382 3597 mbayaR@tut.ac.zaBy appointmentModerator

2.2Staff availabilityIf, after attending class and making every effort from your side to master the subject content, you still have problems with understanding key concepts or principles or their application, the lecturer is available for consultation (by appointment only, or in class but during office hours!).OFFICE CONSULTATIONS: STRICTLY BY APPOINTMENT 3. Requirements, resources and recommended material.3.1Requirements for the course3.1.1Prescribed resourcesThe following tables indicate what literature and other resources are essential for successful completion of this course. COMPULSARY LITERATURE

myTutor NotesM.M RamakokovhuLecture notes discussed in classes

3.1.2 Recommended resourcesThe following recommended resources will enhance your understanding and knowledge in this course, and you are encouraged to use the following additional resources.PRESCRIBED RESOURCES

CATEGORYAUTHOR(s)NAMEPUBLISHERISBN NO

BOOKSB. A. Wills and T.J Napier-Munn (Ed.)Minerals Processing Technology. 7th EditionButterworth-Heinemann978-0-7506-4450-1

RECOMMENDED RESOURCES

BOOKSAL Mular , DN Halbe and DJ Barratt (eds) Mineral processing Plant design, practice, and control (Volume 2)Society for Mining ,Metallurgy and Exploration (SME)978-087335-223-9

BOOKSMC Fuerstenau and NH HanPrinciples of Mineral ProcessingSociety for Mining ,Metallurgy and Exploration (SME)978-0-87335-167-6

BooksMC Fuerstenau, G Jameson and RH Yoon (eds)Recent advances in Mineral processing plant designSociety for Mining ,Metallurgy and Exploration (SME)978-087335-252-9

CALCULATORScientificAny bookshop

COMPUTERAverage speed personal computer or laptopI centre or departmental computer room.

4. Code of conductPlease take note of the following regulations. These regulations are in addition to the standard rules and regulations as determined by the TUT. Please familiarise yourself with the TUT rules and regulations as set out in the student diaries received on registration.4.1 AttendanceRegular attendance of the Applied Mineral Processing III, lectures is important. It is the learners responsibility to sign the register each week in class. A minimum attendance of 80% is mandatory for all courses. In a 30 week year, 8 classes that have not been attended and for which you have not furnished a valid doctors letter or other proof of extenuating circumstances, amounts to 20% absenteeism. This level of absenteeism will lead to exclusion from the final moderation (final written examination) at the end of the year, which means that you will fail the course and will have to repeat it the following year.

4.2 Classroom behaviour4.2.1.Usage of cell phones in classesStudents are required to arrive on time for lectures. Make sure that cell phones are off in the class. Cell phones will be confiscated if a student is caught using it. No disorderly behaviour will be tolerated.4.3 Responsibility of studentsIt is your responsibility to make a success of learning in this course. To this end you are encouraged to attend all classes, write all set tests and hand in your assignments/projects on the set due dates. Please make sure that you have access to myTutor to access all electronic notes. You are most welcome to consult with the lecturer if you feel you are struggling with any learning concept in this course. Please make sure to make an appointment in advance!

SECTIONBLEARNING COMPONENT

1. Overview of the course This course is continuation of Applied Mineral Processing II. It covers aspects of general minerals processing technology not touched in the earlier course, while representing some concept in greater details. The core of the work is concentrating techniques principles, operation, equipment and design. Ancillary operations related to water management in mineral processing, agglomeration processes and typical mineral processing flow sheets with more comprehensive metallurgical material balance and accounting will also be covered. Laboratory sessions will complement the theoretical classes for adequate practical grasp of the concepts. Successful completion of this course is a prerequisite for Applied Mineral Processing IV project course.1.1 Purpose of the course This course completes the broad foundational understanding necessary for career pursuit in mineral processing operation as well as for further studies.1.2 Links to other subjects

Applied Mineral Processing form the basis for all metallurgical extraction processes. Water chemistry, general Mathematics, fluid mechanics, spreadsheet and drawing applications are relevant requisite knowledge. 1.3 Course outcomesThe course outcomes are detailed under 3.22. Assessment2.1 Assessment methods and criteriaThis is a continuous assessment course and will include formal written tests, assignments, and compulsory practicals. The various assessment methods therefore will focus on criteria that will enable the lecturer(s) to determine whether you have achieved the learning outcomes. The assessment criteria relevant to each learning outcome are detailed in section 3.2.2Assessment rulesThe general rules of TUT regarding assessment apply. You are advised to familiarise yourself with these rules, as they are applied stringently. If a student misses a test due to illness, hospitalisation, death of an immediate family member, a valid doctors or death certificate must be submitted within 3 days, at the lecturers discretion, a student will then be granted a sick test to make up the mark.2.3 Marking system All tests, practicals, assignments / projects will be marked out of 100%. See attached weights in the appendices.2.4 Year markThe Predicate (PM / year mark) will be calculated as per attached continuous assessment sheet in my Tutor. (See attached weights in the appendices)Final semester marks are put on the departmental notice boards. If you have any queries about your mark, you must immediately consult the subject lecturer (contact details provided on page 5), before the final publication day!

2.5 Moderation The examiner is the lecturer of the subject, an external moderator is also appointed to ensure that the assessment was fair. 3. Course content and schedule of tests and assignmentsThis course comprises of theory, calculations and practical component. Your mastery of that theory and application is assessed at regular intervals by the tests , practical sessions ,projects and/ or assignments in the form of assessments. 3.1Course structure and schedule of tests and assignmentsThe following outline provides an overview of the content to be covered in this course and the ways in which your progress will be assessed. DURATIONTHEMEAssessments

Week 1-2UNIT 1: HYDROCYCLONE Design features Operating principles (equilibrium orbit theory) Operating variables Efficiency of separation in hydro cyclones: The partition (or Tromp) curve Effect of hydrocyclone variables on operation Empirical hydrocyclone models: The Plitt model (brief discussion and application) The Krebbs model (used in calculations)

Project

Week 3 UNIT 1 : GRAVITY CONCETRATION General principles The concentration criterion Particle settling rates Jigging Operating Principles Types of jigs Operating parameter Shaking table Operating principles Types of shaking table Operating parameters Flowing Film concentrators Pinched sluices, cones and spirals Operating principles Operating parameters Centrifugal gravity concentrators Operating principles Types of centrifugal Concentrators Operating parameters

Assignment 1

Week 4-5 UNIT 2: DENSE MEDIUM SEPARATION General operating principles Medium Laboratory liquids Industrial suspensions Types and characteristics required for solid material used Pulp properties Gravitational dense medium separators Drum separator, cone separator, drew boy bath Centrifugal separators: DMS cyclone DMS circuits Gravity separation process performance Sink Float analysis: Washability curves Efficiency of dense medium separation: partition curve Class test 1

Week 6-7 UNIT 3: FROTH FLOTATION

Introduction Mineral polarity, water polarity, hydrophobicity Surface properties and the thermodynamics of flotation (intro) Reagents (surfactants): Collectors, Frothers , Modifiers and depressants Flotation Equipment Flotation models The kinetic model of flotation Flotation probability Bubble surface area Plant floatation applications

Major Test 1

Week 8-9UNIT4 : MAGNETIC AND ELECTROSTATIC SEPARATION Magnetic separation Magnetic properties of different minerals Magnetic field and force Low intensity magnetic separators Drum separators ( Counter- current, counter-rotation, concurrent) Cross belt separators High intensity magnetic separators Induced roll magnetic separators WHIMS: The Jones separator Electrostatic separation Corona and true type electrostatic separators Operating principles

PracticalAssignment 2Class test 2

Week 10-12UNIT 6: DEWATERING Water balance in mineral processing Dewatering techniques Gravity sedimentation (thickeners) Centrifugal sedimentation Filtration Thermal Drying Flocculation Agglomeration Thickener design Design features Operation of thickeners( batch and continuous operation) Thickener circuits

Major test 2

3.2Learning outcomes and assessment criteria

The following tables clearly indicate what you have to achieve (the learning outcomes) and how you will be assessed (assessment criteria) to determine whether you have achieved the required knowledge and competences.

UNIT 2: DENSE MEDIUM SEPARATION

UNIT 3: FROTH FLOTATION

UNIT 4: MAGNETIC AND ELECTROSTATIC SEPARATION

UNIT 5: HYDROCYCLONES

UNIT6: DEWATERING

3.3 Generic outcomes and critical cross-field outcomes

Perform procedural design of mineral processing equipments to meet desired needs within applicable standards, codes of practice and legislation. Communicate scientific information technically, using appropriate language and terminology, structure, style and graphical or mathematical support. Apply engineering principles to systematically diagnose and solve well-defined engineering processing problems. Demonstrate the application of mathematical, science and engineering knowledge in an engineering environment.

4. Glossary of terms The technical terms used in this course, will be made clearer on reading of all class notes. You should ensure that you are familiar with these terms and their meanings. If you have difficulty with grasping / understanding of any single term, please consult the lecture for a better explanation thereof.

5. Appendices

FACULTY OF ENGINEERING AND THE BUILT ENVIRONMENT

CHEMICAL,METALLURGICAL AND MATERIAL ENG. DEPARTMENT

Weights 2014

SUBJECT DISCRIPTION:Applied Mineral Processing III

SUBJECT CODE:ANP301T

Lecturer Initials and SurnameStaff numberGroupOffering TypeBlock Code

M.M RamakokovhuEP0

EXAMPLEASCTPRPJWRTOTAL

ASSESSMENT 111.2511.2522.50

ASSESSMENT 222.5022.50

ASSESSMENT 35.635.6311.2522.50

ASSESSMENT 422.5022.50

(ASSESSMENT 5) VETO10.0010.00

100.00

16.8816.8811.2510.0045.00100.00

Red:To be complete by Subject Head

AS:Assignments

AT:Attendance

CT:Class Tests

EV:Evaluation

GP:Group Presentation

HM:Group Presentation

OP:Oral Presentations

PA:Practical Evaluation

PJ: Projects

PR: Practicals

WR:Written Tests

SUBJECT HEADDATE

FACULTY ADMINISTRATOR: DATE

CAPTURED BY DEPARTMENTAL ADMINISTRATORDATE

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