Drying, Roasting, Calcining and Agglomeration are critical steps in the
processing of ores and concentrates. These processes are characterised by
operating below the solidus temperature of the material, with chemical
reactions and phase changes occurring. The high temperatures in the equipment
is critical for these reactions and processes. This symposium will cover
drying, roasting, calcining and agglomeration of ores, concentrates and
feedstocks, both from a theoretical and practical perspective.
Professor Doyle has worked in a wide range of areas in which she applied her
fundamental work on chemical thermodynamics, chemical and electrochemical
kinetics, transport phenomena, colloid and interfacial science to develop a
fundamental mechanistic understanding of minerals and materials processing
operations and materials-solution interactions, with a goal of developing a
foundation for ensuring sustainability and economic competitiveness in the
supply of resources and energy.
It is proposed to have different sessions that recognize her work in the
different areas, as well as current research interests.
The processing and recovery of critical minerals via hydrometallurgical methods
is essential for the transition to renewable, green energy. The first topic is
planned to focus on the recovery of critical minerals from primary ores,
byproducts, slags and tailings, scraps and waste fractions. Papers both on the
fundamentals of recovery mechanisms as well as applied, upscaled approaches are
welcome, including development of new technologies and equipment.
The second topic focusses on novel separation technologies and methods,
including microbial extraction, in the context of 1) rare earth recovery and 2)
removal of (heavy) metals from aqueous streams for environmental
considerations. Increasingly stringent environmental regulations require
removal of metal contamination from aqueous streams to very low levels. This
includes streams such as waste streams from hydrometallurgical processing,
cooling and off-gas treatment streams, run-off water (e.g. metallurgical
operations, storage, recycling operations), water from tailing storage and
mines, as well as aqueous streams from manufacturing processes (e.g. plating)
for example.
The third topic in this symposium examines the environmental impact of mining
and metallurgical operations from two angles. Firstly, the precise assessment
of this using Life Cycle Assessment is challenging, among others due to missing
or incorrect data in databases. Papers on new approaches to achieve increased
precision in LCA, and papers on improvement of the data base are sought.
Secondly, contributions discussing the modification of processes and equipment
to improve their environmental performance are sought, in particular but not
limited to, the areas mentioned above (processing and recovery of critical
minerals, rare earth recovery, removal of (heavy) metals from aqueous streams).
The purpose of the furnace containment system is to hold both process materials
and energy associated with pyrometallurgical processes. The methods in which
the challenges of containing corrosive and abrasive materials at extreme
temperatures will be addressed, whether they are used across commodities or
technology specific. There is much to be learned from cross-commodity and
cross-technology perspectives. The intention of this symposium is to create a
platform for the exchange of ideas on the challenges, solutions, failures, and
successes in furnace containment designs and applications. Bringing together
perspectives from industry, design houses, and research institutions will be
ideal. For the symposium, the furnaces associated with solid-state processes
are included although the focus will be smelters.
Themes
1. Advances in furnace lining design philosophies
2. Advances in furnace design configurations and other design considerations
3. Problems experienced and their solutions implemented during construction
and commissioning
4. Integration of new concepts into old smelters
5. Back to basics: refractory materials, shells, and cooling systems
6. Maintaining and monitoring
7. Process control and slag design
8. Lessons learned
Accurate and reliable measurements are the foundation of well-controlled
processes. The high-temperature environments inherent in many industrial
operations, including metal smelting and casting, heat treating, and nuclear
power generation make measurements challenging due to the instability of
electronics at elevated temperatures, increased rates of corrosion and
mechanical degradation of instrument materials, and dust formation and
infiltration. In order to effectively measure the conditions in these
processes, the instruments and equipment used in these applications must have
excellent chemical stability, resistance to thermal shock, and mechanical
integrity over a wide range of temperatures. Accurate measurement is necessary
but not sufficient for successful high-temperature processes; informed use of
these measurements by means of integrated control mechanisms is also critical
for maintaining stable and productive operations.
This symposium will focus on exploring (1) proven and/or novel measurement
techniques for use in high-temperature environments (including measurement of
temperature, velocity, pressure, chemical composition, or other parameters) and
(2) process control schemes employed in these environments, with preference
given to those implemented in industrial operations.
The industrial processes of interest include, but are not limited to:
- Metallurgical production furnaces
- Heat treating furnaces
- Casting line operations
- Molten salt electrolysis cells, including Hall-Heroult cells
- Nuclear reactors
- Gas turbines
Professor Takashi Nakamura has a great deal of experience in development of
processes related to nonferrous metal resources, development of social systems
for recycling, and environmental engineering. He has not only conducted
research on individual issues and basics of physical chemistry of nonferrous
metallurgy, but has also had a significant impact on recycling-related
legislation in Japan as well as international standards for nonferrous metals.
In this symposium, we are going to review the history of the research on the
physical chemistry of smelting and recycling processes for nonferrous metals
such as copper, lead, and zinc, and on the environmental issues related to the
circulation of nonferrous metals. Furthermore, we are going to discuss the
technological, social, and environmental challenges that need to be addressed
to realize a sustainable society in the future.
The primary production of metals and alloys and their downstream processing are
significant sources of anthropogenic CO2 emissions. With projected growth in
demand for metals and alloys in the future, there is a dire need now to develop
fundamental science-based approaches to decarbonize metal production and
processing. This symposium will bring together worldwide researchers working on
the basic science questions related to transitioning from the widely used
carbon-based high-temperature reduction of metal ores to lower-temperature
solid phase reduction processes using alternate reductants such as Hydrogen,
which can eliminate up to 10% of global CO2 emissions. This symposium will also
feature experimental and computational research efforts to develop
deformation-based solid phase processing approaches to achieve unique
microstructures with superior structural and functional properties in metals
and alloys.
Carbon intensive industries are at a crossroads. Long term manufacturing plans
using pyrometallurgical processes all include decarbonization levers: we must
solve the problem of fossil-based reduction and fossil-based power generation
processes for metals production.
This symposium will explore innovative and diverse strategies for the
enablement of low carbon industries in the high temperature metals and
materials processing fields.
In particular, the following processes shall be investigated:
- Electrolysis and electrification of metallurgical processes
- High temperature electrolytic routes for metal and alloy production
- Use of hydrogen and other alternative non carbonaceous reducing agents
- Biofuels and other non-fossil reagents for metallurgical applications
- Direct and in-direct use of solar energy in high temperature processing
- Energy efficiency and waste heat recovery concepts applied to
pyrometallurgical operations
This symposium will also include a problem driven session illustrating the
pathways taken in industry to reduce carbon dependency. Such session will
feature invited speakers and include a panel discussion.
This symposium is intended to address new research and/or technology for
increased efficiency, energy reduction and/or waste minimization in Mineral
Processing, Extractive Metallurgy and Recycling. These are topics that
Professor Taylor and his students have been studying for the past 45 years.
Technical sessions may include new directions in:
* Mineral Processing
* Hydrometallurgy
* Pyrometallurgy
* Electrometallurgy
* Metals and E waste recycling
* Waste minimization (including by-product recovery)
* Innovations in metallurgical engineering education and curriculum
development
The organizers solicit papers from authors who are engaged in the analysis,
development and/or operation of high temperature processes that involve the
extraction and processing of material resources, production and treatment of
metals, alloys and ceramic materials. Papers that describe innovative methods
for achieving property enhancement, impurity segregation and removal,
by-product recovery, waste minimization, energy efficiency, and utilization of
complex ores are particularly welcome. Also of interest are papers on the
various technical, economic, and environmental issues associated with
commercial-scale high temperature processing methods. Best papers presented and
published on the symposium proceeding will be selected and recommended to the
pyrometallurgy committee for award consideration.
Many a metallurgist fell in love with pyrometallurgy after witnessing a smelter
being tapped. There is something magical in the combination of light, energy
and danger that simultaneously stirs the primal instincts to ‘run for your
life’ and ‘go closer and have a look’.
But tapping a smelter is not an easy task.
Much engineering go into the design of the tap-hole. Due to the aggressive
nature of the process, material selection is as important as layout. The design
process kicks off with a set of design criteria, which needs to be revised as
the results of laboratory, compational fluid dynamics (CFD) and time-and-motion
studies become available. The tap-hole life-cyle is taken into account with
designers addressing the requirements for installation and operability as well
as for maintenance. Matters such as online monitoring of the taphole wear,
handling of liquid products, and extraction of fumes are all taken into
account.
Though tap-hole life can be improved with proper design, a good design can be
destroyed with incorrect tapping practices and equipment. Despite the harshness
of the tapfloor environment, it requires precision equipment and operating
practices. The design and maintenance of the drilling, tapping and plugging
equipment and materials plays an equally important role in tap-hole life and
tapfloor safety. As does protective equipment. Operators want the tap-hole life
to be as long as possible since tap-hole failures is often the cause for a
reline—a very expensive exercise in an upcycle when the cost of a new lining is
small compared to the loss in production. Managing the maintenance and reline
schedule is a challenge with lessons often learned the hard way.
The first thing students are taught in pyrometallurgy courses is how to compile
a mass and energy balance for a smelter. An accounting mass and energy balance
is used not only to schedule furnace taps but also to make process decisions.
Process variables measured during or after tapping are important inputs to a
workable mass and energy balance.
Even though much has been done to make the tapping process as automatic as
possible, tapping of smelters cannot be done without labour. Tap floor
operators work in harsh environments where safety is of utmost importance.
Selection of suitable personnel and intensive training is required.
No pyrometallurgical smelter can operate without some form of tapping system.
It is the one thing all smelters have in common. A meeting point of science,
technology and skill.
So let us talk about it.
In a context of deep economic and societal changes, new bridges have appeared
between scientific fields. Sustainable Production and Development in the metals
and materials community is a global approach to maintain a balance between
economic, environmental, and societal matters while meeting an ever increasing,
worldwide demand. Key concepts explored at REWAS 2022 will include fostering
multidisciplinary collaboration, combining sociology, economics, engineering,
and natural sciences for the realization of Sustainable Development Goals.
In particular, this symposium will cover:
- Recyclable product design, Manufacturing for dissasembly
- Establishing and nurturing responsible Supply Chains
- Environmental and economical governmental policies and strategies
applicable to the metallurgical industry
- Education and promotion of global Circular Economy perspectives
- Available tools and strategies for rigorous assessment of Sustainable
Development Goals
This symposium will host the Plenary Session of REWAS 2022.
Professor Jiann-Yang Hwang has been dedicating in the field of mineral
processing, metallurgy, water treatment, microwave assisted material process,
hydrogen storage, and by-product recycling as his career for over 40 years. His
most recognized and awarded contribution has been in microwave assisted
steelmaking process, fly-ash beneficiation and reuse, recycling and reuse of
metallurgical byproducts, and wastewater treatment. This symposium will be
mainly focused on the characterization and processing development in minerals,
metals, and materials.
This symposium will cover topics such as:
• Characterization methodology of minerals, metals, and materials
• Microwave-assisted material processes
• Recycling and reuse of metallurgical byproducts
• Materials for hydrogen storage
• Wastewater treatment and environmental protection
• Natural materials for value-added applications
• Principles and interactions of material characterization and manufacturing
processing
• Pyrometallurgy and hydrometallury
Any presentations and manuscripts related to Prof. Hwang’s research background
and achievements will be specially encouraged.
Ni-Co 2021 will convene operators, engineers, and researchers to exchange
information about all aspects of current processing technologies for nickel and
cobalt, as well as emerging technologies for both metals. Sessions will also
encompass metallurgical aspects of metals commonly associated with nickel and
cobalt, such as copper and platinum group metals (PGMs). A balance of
industrial and academic papers is planned.
Co-location with TMS2021 affords even greater exposure for your work, since all
TMS2021 attendees will have access to Ni-Co 2021 programming as part of their
registration.
Specific technical topics for Ni-Co 2021 include, but are not limited to:
Mineral Processing
Metallurgy of Nickel and Cobalt Ores
Battery Materials
Recycling
Recovery of Associated Byproducts and PGMs
Sulfide and Laterite Processing
The Lead – Zinc 2020 symposium builds on the successes of the original 1970
meeting, the subsequent conferences held in 1980, 1990, 2000 and 2010, the Zinc
– Lead symposia in Japan organized by MMIJ in 1995 and 2005, the Lead-Zinc
conference in Germany by GDMB in 2015, as well as the Canadian Lead – Zinc
conferences organized by MetSoc in 1998 and 2008. It will provide an
international forum for the lead and zinc processing industries bringing
together operators, engineers and researchers to exchange information about all
aspects of current processing technologies for primary and secondary lead and
zinc, as well as emerging technologies for both metals. The symposium scope
extends from process fundamentals to operational practices, and also includes
the important aspect of environmental issues. At the operations level,
comprehensive reviews of the major applications of both metals are outlined.
Emphasis will be placed on recent commercial developments with less energy
intensive technologies which are in harmony with environmental conservation. At
the research level, the emphasis is placed on the better understanding of
existing technologies and the development of new processing concepts.
Environmental concerns, associated with the processing of both metals, are
considered along with acceptable treatment and handling of by-products, wastes
and bleed streams by the industry. A highlight of the conference will be a
series of plenary lectures by industry leaders. Various social events are
scheduled, and these will allow informal discussions and networking among the
delegates. After the symposium, industrial tours are planned to various North
American lead and zinc processing operations.
Topics to be discussed at the symposium include:
* Global factors affecting the production of zinc and lead including the
economic aspects of the industries, product development and marketing
endeavors, and environmental and health issues,
* Surveys of existing smelters and refineries for primary and secondary lead
and zinc production,
* Zinc production technology (roast-leach-electrowinning route including iron
control, pyrometallurgical processes, ISP, slag fuming, Waelz furnace, TBRC and
new technologies including direct concentrate leaching and smelting,
pyrometallurgical refining and oxide ore processing),
* Lead production technology (pyrometallurgical processes such as the ISP,
blast furnace, QSL, KIVCET, SKS-RSKS and TSL, as well as pyrometallurgical
refining, electrorefining, slag fuming and new processes),
* Product applications and marketing (galvanization of steel, chemicals, ZnO,
lead-acid batteries) and new product development,
* Recycling technologies and product life cycle issues (e.g. electric arc
furnace dust treatment and direct de-zincing, secondary lead processing), and
* Fundamental research and basic studies related to new Pb and Zn processes and
to the understanding and basic theories of Pb and Zn processing.
The organizers solicit papers from authors who are engaged in the analysis,
development and/or operation of high temperature processes that involve the
extraction and processing of material resources, production and treatment of
metals, alloys and ceramic materials. Papers that describe innovative methods
for achieving property enhancement, impurity segregation and removal,
by-product recovery, waste minimization, energy efficiency, and utilization of
complex ores are particularly welcome. Also of interest are papers on the
various technical, economic, and environmental issues associated with
commercial-scale high temperature processing methods.Best papers presented and
published on the symposium proceeding will be selected and award certificate
will be issued.
Electrolytic processing is used commercially to recover and/or refine metals
including large–scale production of aluminum, copper, magnesium, nickel, and
zinc as well as, on a smaller scale, for recovery and refining of gold and
silver. There are also exciting opportunities to utilize electrometallurgy in
the production of titanium, lead, and other metals. Electrolytic processing of
metals faces common challenges that include energy utilization, chemistry,
productivity, and safety. To meet the present challenges in commercial
electrometallurgy, a variety of technological advances have been made. Similar
challenges will be faced in the future, requiring process improvements and
innovations.
The 3rd International Symposium on Electrometallurgy – building on the success
of Orlando 2012 and Quebec City 2016, will bring together industry, consulting
engineers and researchers to discuss fundamental research, development, and/or
application of innovative aqueous or molten salt electrometallurgical
processing technologies for the extraction of metals.
The Symposium will provide a forum for the international metallurgical
community to discuss innovative approaches to reduce the energy consumption
during electrolysis of metals. This Symposium is organized by TMS and Met Soc,
with the leadership of the TMS Extraction and Processing Division, with support
from the Hydrometallurgy and Electrometallurgy, Process Modeling and
Technology, and Pyrometallurgy Committees.
Electrometallurgy 2020 in San Diego will host Sadoway 70, a Honorary Symposium
dedicated to the innovative contributions of Prof. Donald Sadoway from MIT,
encompassing process metallurgy and electrochemistry of molten salts, liquid
metal batteries, or extra-terrestrial materials processing. Abstract submission
to Electrometallurgy 2020 are by invitation only. Please contract the
organizers for more information.