Raw Materials and Waste Processing I

Code:

EMG0024

Acronym:

TMPR I

Keywords
Classification	Keyword
OFICIAL	Technology and Applied Sciences

Instance: 2022/2023 - 1S

Active?	Yes
Responsible unit:	Mining Engineering Department
Course/CS Responsible:	Bachelor in Mining and Geo-Environmental Engineering

Cycles of Study/Courses

Acronym	No. of Students	Study Plan	Curricular Years	Credits UCN	Credits ECTS	Contact hours	Total Time
L.EMG	9	Plano de estudos oficial a partir de 2008/09	3	-	6	52	162

Teaching language

Suitable for English-speaking students

Objectives

-Knowledge: Knowledge of basic sciences (chemistry, physics) applied to the characterization of particulate systems; - Comprehension: Recognize, describe and identify the unit operations involved in a reduction and classification of particle size. - Application: To discriminate the field of application of different technologies: to select the most appropriate technology for a particular case. - Analysis: To calculate the materials balance in steady-state using analytical, numerical and graphical methods for each unit operation. - Synthesis: Create and organize coherent process flowsheets for each unit operation and the process as a whole. Evaluation: Compare different process alternatives

Learning outcomes and competences

Knowledge of the different unit operations in processing raw materials. Fragmentation and Classification.

Working method

Presencial

Program

CAP. 1 - Comminunution and concentration of rocks and ores.  An introduction to Mineral Processing Technology.
1- Mineral Processing: Technology or Science? 2- Ore treatment as a technology for processing natural raw materials. 3- Notion of ore and mineral deposit.  4-Valorarization steps of mineral deposits. 5- First technical and economic considerations. 6- Major mineral processing methods. Introduction to plant flowsheet. 7- Characterization of a concentration operation: Recovery and weigh yield; The problems of sampling; Graphical analysis of the success of a concentration operation.
CAP. 2 - Characterization of particle properties.
1- Particle size: Sieve analysis; Graphical representations of the results; Classical particle size functions; Efficiency of industrial screening. 2 - Grade: Basis of the study the liberation of valuable minerals.
CAP. 3 - Comminution: Major mineral processing operation
1- Objectives of comminution. 2 - Stages of comminution. 3 - Principles of comminution: comminution theory; Grindability; Energy required for comminution.
CAP. 4 - Crushing
1- Introduction 2- Crushers technology. 3- Crushing circuits accounting; 4- Kinetics of comminution process. 4- Automatic control in crushing circuits.
CAP. 5 - Grinding
1- Introduction; 2- Characterization of grinding processes; 3 - Grinding equipment technology. 4- Tumbling mills. 5 - Special mills; 6- Kinetics of grinding process; 7- Autogenous milling: modern technology of milling.
CAP. 6 - Size separation - Major mineral processing operation
1- Introduction. 2- Fundamentals of size separation. 3- Industrial size separation; 4- Screening. 5- Size separation by hydraulic classification.

Mandatory literature

Mário Rui Machado Leite; Fragmentação e classificação de rochas e minerais, 1986
Barry A. Wills; Wills´s Mineral Processing Technology, Tim Napier-Munn, 2006. ISBN: 0-7506-4450-8

Teaching methods and learning activities

THEORETICAL - PRACTICAL CLASSES: Main concepts and its technological application. Some examples of paradigmatic situations.

LABORATORY CLASSES: Resolution of selected problems. Carry out scheduled laboratory tests, supported short useful presentations for disseminating the suitable procedures.

Evaluation Type

Distributed evaluation with final exam

Assessment Components

Designation	Weight (%)
Exame	50,00
Trabalho laboratorial	15,00
Teste	25,00
Trabalho prático ou de projeto	10,00
Total:	100,00

Amount of time allocated to each course unit

Designation	Time (hours)
Elaboração de relatório/dissertação/tese	12,00
Estudo autónomo	88,00
Frequência das aulas	39,00
Trabalho escrito	10,00
Trabalho laboratorial	13,00
Total:	162,00

Eligibility for exams

Students have to be present in at least 75% of the theoretical-practical taught.

Calculation formula of final grade

 

AC - Continuous assessment - 50%
FA - Final exam - 50%

The continuous assessement will be calculated using the formula:

AC = 0,15*laboratory reports + 0,10*practical exercises + 0,25* assessment test

Final Grade (NF) will be calculated using the formula:

NF =0,5*AC+0,5*NT

To complete the course unit, students have to reach a minimum grade of 7 out of 20 in both evaluation components (Continuous assessment and Final Exam).

Examinations or Special Assignments

For the students that are not available to realize continuous evaluation, final grade will be equal to the final exame grade.

Internship work/project

Not applicable.

Special assessment (TE, DA, ...)

Exame final (1ª Época e/ou Recurso).

 

Classification improvement

Students may only improve their grades by attending a final exam. Students may not improve the grade of the continuous assessment component.