ENGINEERING OF RAW MATERIALS

Course objectives

The aim of the course is to supply the base concepts on which the separation techniques among particulate solids are based and to illustrate the machines and the industrial circuits assembled for that purpose. Those techniques are based on the laws of mechanics, hydraulics and electromagnetism and are described within the course in their applications to separate and recover the secondary materials contained in the secondary raw materials (the wastes) and in the remediation of contaminated soils. This last process involves separating the contaminating element from the natural the soil. A)Knowledge and understanding: the course is aimed to supply the conceptual basis on which the separation among particulate solids are based and to illustrate the techniques used in the separation from each other of the secondary materials, in the case of material recovery from a secondary raw material (the waste) and in the remediation of contaminated soils. Moreover, a few preliminary notions of the circular economy are provided to the students. B)Applying kwowledge and understanding: the student acquires the knowledge of conceptual, methodological and application elements relating to the more idoneous techniques in real cases of the recovery of particulate solids, both in real cases of recycle of materials contained in end-of-life products and in real cases or removal of contaminants from a contaminated soils. The student learns how to calculate the quantitative parameters of grade and recovery to judge the goodness of both separation processes. The student understand the cycle of life of a raw material coming from a natural resource and of a raw material coming from an end-of-life product, also thanks to numerical exercises designed to the application of what they have learned during the course. C)Making judgements: thanks to numerical exercises the student will become skill in the choice of the best techniques of physical separation both for the recycle of materials contained in end-of-life products and for the removal of pollutants from contaminated soils. Skill in regulating the processes of solid separation as a function of the grade and of the recovery of the materials to recycle and of the contaminants to remove. Comprehension of the cycle of life of primary and secondary raw materials and knowledge of the basics of economy, selling and transport of mercantile products. D)Communication skills: the chronology of subjects treated in class, has been designed to allow the student to acquire gradually and consequently such subjects and with a technical language that will permit them to relate to the experts in the field of separation. This will permit the student to transfer his knowledge to other people. E)Learning skills: the theoretical and practical knowledge of solid separation will allow the student to carried out technical insights on the solid separation methods and to propose new methods working with the laws on which those methods are based on.

Channel 1
GIUSEPPE BONIFAZI Lecturers' profile

Program - Frequency - Exams

Course program
1. Introduction to Raw Materials Engineering. Primary and secondary raw materials: definition, characteristics, and differences. The raw materials market. 2. What is an ore mineral? The mineral deposits. The mines and quarries. Distinction between mines and quarries. 3. Sources and extraction of raw materials: to. Natural resources and sources of supply. b. Methods of extraction and processing of raw materials: mining and cultivation. 4. Characterization of primary and secondary raw materials for the purposes of cultivation (i.e. primary raw materials) and/or processing (i.e. primary and secondary raw materials). 5. Characteristics of solid materials: size, shape, mechanical characteristics, and physico-chemical characteristics. 6. Particle characterization: grain size analysis (i.e. grain size curves) and morphological and morphometric analysis. 7. Production and Transformation Processes. Size reduction: comminution, crushing, and grinding. 8. Production and Transformation Processes. Separation and liberation of constituents: to. Separation of solids by size and shape properties. Screening, cyclones, centrifuges. b. Separation by mass properties: volumetric weight, magnetic susceptibility, electrical conductivity, induced currents, … c. Separation by surface properties: flotation, flocculation, triboelectricity, thermoadhesion, color and texture d. Separation of solids from fluids: sedimentation, filtration, centrifugation 9. Washability and partition curves. 10. Separation and comparison circuits between the treatment of mineral raw materials and recovered materials and/or products that have reached the end of their life cycle. 11. Emerging technologies and innovation. 12. Principles of design and analysis of treatment circuits with particular reference to the comminution, classification, and separation phases, both dry and wet. 13. Process control logic and architectures "online", "in-line" and "off-line". 14. Evaluation of the environmental impact linked to the valorization of primary and secondary raw materials and environmental sustainability of the processes.
Prerequisites
Basics of physics, chemistry, statistics, and materials sciences.
Books
Dispense distribuite a cura del docente E.G. Kelly and D.J. Spottiswood – Introduction to Mineral Processing Edizione: John Wiley & Sons, 1982 B.A. Wills and T.J. Napier-Munn – Wills' Mineral Processing Technology: An Introduction to the Practical Aspects of Ore Treatment and Mineral Recovery. Edizione: Elsevier, 2006.
Frequency
In attendance as per the lesson calendar.
Exam mode
During the course, each student will be assigned a project which will be evaluated during the course and during the final exam.
Lesson mode
Lectures and exercises.
  • Lesson code1022158
  • Academic year2025/2026
  • CourseEnvironmental Engineering
  • CurriculumSingle curriculum
  • Year3rd year
  • Semester1st semester
  • SSDING-IND/29
  • CFU6