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Meeting Extraction 2018
Symposium Part C-2: Gordon Ritcey Symposium: Advances in Hydrometallurgical Solution Purification Separations
Sponsorship
Organizer(s) Ronald Molnar, MetNetH2O Inc.
Jeff Adams, Hatch Ltd.
Wenying Liu, University of British Columbia
Scope The Hydrometallurgy technical theme is one of four technical themes for Extraction 2018 and consists of three symposia:

C-1: Hydrometallurgy 2018 (the symposium)
C-2: The Gordon Ritcey Symposium: Advances in Hydrometallurgical Solution Purification Separations
C-3: Processing of Critical Materials

The Gordon Ritcey Symposium: Advances in Hydrometallurgical Solution Purification Separations consists of the following topic areas:

Solvent Extraction

• Applications in extractive metallurgy
• Alternative separation technologies
• Contacting equipment
• Modelling and simulation

The principal focus for papers in this session is a review of the current state of the application of solvent extraction technology in the extractive metallurgy industry. The focus will be on applied technology rather than on completely academic studies, though, there will be place for researchers to report on new ideas that they are developing. Papers should deal with metals extraction. Extraction of non-metals will be largely avoided unless these separations for example of inorganic acids, are a necessary part of metal production flowsheet.

We will be looking for a broad range of papers covering base metals and rarer metals such as niobium and lithium. Papers that deal with atypical separations, for example extractions from very dilute dilutions (like Au or Sc) that require high A/O ratios, will be sought out with a view to learning about solutions to the engineering challenges.

As a Rare Earth symposium is planned, papers dealing with the separation of rare earth elements will be referred to that session, but papers dealing with solvent extraction to remove other impurities like thorium within the context of a rare earths recovery flowsheet would be considered. The organizers will, in particular, look for papers that deal with novel applications of SX whether that be through new reagent schemes, new ways of contacting phases or new circuit layouts that facilitate otherwise difficult separations. Organizers are looking for presentations that deal with controlling and modelling SX circuits and SX separations. There should also be room for some papers dealing with the equipment used in solvent extraction with reference to commercial applications, whether this is conventional equipment like mixer-settlers or pulsed columns or centrifugal equipment or other types of contactors. Equipment papers may also expand the scope of the SX theme by discussing novel or innovative methods of pre-treating SX feeds or dealing with SX problems like cruds and emulsions through equipment application and design.

Ion Exchange

• Applications in metallurgy
• Contacting equipment
• Modelling and simulation

Ion exchange application in metallurgy will be the main topic of these sessions. In particular, we are looking for innovations in the application of IX for primary metals recovery, for example uranium and gold, or for applications of IX in hydrometallurgical circuits, typically to remove impurities. We hope to find papers dealing with new resin types and application of IX in novel ways. In particular, this is tied in with some of the novel methods and equipment for IX circuits such as continuous IX carousel contactors.

The control of IX circuit is challenging. One key issue is carryover of solutions trapped in the bed and the control strategies and required analytical and sensor support to limit cross-contamination will hopefully provide some areas where engineering companies can share some of their expertise. This will also be related to the modelling and simulation of IX circuits in metallurgical flowsheets.

Membrane Separations

• Supported liquid membranes
• Electrically assisted separations (ED and ?), RO and nanofiltration
• Forward osmosis, microfiltration, ultrafiltration

Membrane technologies are finding increasing application in hydrometallurgical circuits, not only for the production of clean water but for the removal of impurities and the concentration of target elements in solution. For example, removal of divalent elements is a critical issue in lithium extraction flowsheets. Therefore, the committee would like to include some papers on some of these applications, papers that will help the metallurgical audience to appreciate some of the potential and limitations of technologies such as those listed above as related specifically to metallurgical separations. This will not be the main focus of the symposium, so only limited space is allocated for this topic, and should there be sufficient submissions, it can be envisaged that some of these might be presented in a more general hydrometallurgy session.

Emerging Technologies

• Supercritical fluids
• Free-flow electrophoresis (FFE)
• Alternative separation technologies
• Ionic liquids (in solvent extraction, EW)

The objective for the papers dealing with emerging technologies is to give academic and industrial researchers working in these areas the opportunity to present their results. The papers will need to focus on metallurgical separations, and where there is overlap with the Rare Earths symposium, submissions would preferentially be presented in that forum. Organizers will be looking for submissions that deal with using these (and the list is not complete) technologies to make separations that have otherwise been difficult of problematic using SX or IX.
Abstracts Due 11/30/2017
Proceedings Plan Planned: At-meeting proceedings
PRESENTATIONS APPROVED FOR THIS SYMPOSIUM INCLUDE

A Review on Application of Crown Ethers in Separation of Rare Earths and Precious Metals
Advances in the Development of Electrostatic Solvent Extraction for Process Metallurgy
Antimony and Bismuth Control in Copper Electrolyte by Ion Exchange
Application of Donnan Dialysis to the Separation and Recovery of Cations During Hydrometallurgical Recycling of Lithium Ion Batteries
Breakthrough in Uranium Recovery from Saline Liquors by Ion Exchange
Cadmium and Nickel Adsorption Study using Biosorbent
Clean TeQ Sunrise Project – A Novel Hydrometallurgical Flowsheet to Produce Battery-Grade Cobalt and Nickel Sulphates
Crowding Effect on Dysprosium Extraction and Separation from Post-consumer Waste of Permanents Magnets
Determination of the Content of Neodymium in a Super Magnet after Oxalate Precipitation and Production of the Nd2O3
Development and Screening for Resins to Recover Ree and Scandium from Different Sources
Electrolytic salt splitting for sulfuric acid and caustic recovery: can it be cost-effective?
Equilibrium Modeling of Solvent Extraction and Stripping of Copper(II), Nickel(II) and Ammonia for Ammnoniacal Process Using LIX84-I
Experimental Study and CFD Simulation of a Pulsed Solvent Extraction Column with Novel Ceramic Internals
Extraction of Clean Water from Contaminated Effluents by Forward Osmosis
Green Chemistry Principles Applied to the Selective Separation and Purification of Specialty Metals Using Molecular Recognition Technology
Imprinted Resin - The 21st Century Adsorbent
Ion Exchange Removal of Copper Impurity from Silver Nitrate Electrolyte
Ion Exchange Resin - Pilot and Resin Testing
Ion Exchange Technology in Hydro-Metallurgy’s Future
Keeping Mine-Water Membranes Clean
Liquid-liquid Extraction of Cobalt(II), Nickel(II) and Manganese(II) from Acidic Chloride Media
Lithium Solvent Extraction with a Beta-diketone Reagent
Membrane Technologies for Improving Mining and Refining Processes
Metal Separation Using Diffusion Dialysis with Anion Exchange Membranes
Modelling Solvent Extraction as a Chemical Equilibrium
New Highly Selective Ligands for the Purification of the Lanthanides, Actinides, and Medical Isotopes
New Technological Advances, Challenges and Opportunities in Solvent Extraction from Energy Storage
Nickel recovery from hyperaccumulator plants using a chelating resin
Outotec’s VSF®X Implementation to Provide Modular Solvent Extraction Technology
Preliminary High Rate Compressible Media Filtration Provide Promising Benefits For Leach Liquor Clarification
Recovery of Copper Nanoparticles from AMD by Cementation with Iron and SDS
Recovery of Palladium from Spent Catalysts – A Critical State-of-the-Art
Selective Separation of Iron from Simulated Nickel Leach Solutions Using Ion Exchange Technology
Separation and Purification of Value Metals from Aqueous Chloride Solutions by Solvent Extraction
Separation of Iron (III) and Nickel (II) from Acidic Sulfate Leaching Solution of Molybdenum-Nickel Black Shale
Separation of Lead from Chalcopyrite Using Resin-in-Pulp
Separation of Uranium and Molybdenum from Alkali Leaching Solution of U-Mo Ore
Settling behavior and CFD simulation of a gravity separator
Simultaneously Sulfur Removal and Extraction of Valuable Metals from Iron Ore and Tailings Using Hydrometallurgical Process under Atmospheric Conditions
Synthesis of SCS Pincer Extractants for Rapid and Selective Extraction of Pd(II) from Automotive Catalyst Residue: An Alternative Approach to Current Extraction Process
The Feasibility of Separation of Rare Earth Elements by Use of Electrodialysis
The Impact of Aromatic Diluents on Light Rare Earth Extraction and Possible Separation from Chloride Solutions Using Bis(2,4,4-Triethylmetyl) Phosphinic Acid as an Extractant
The Impurity Balance and Recovery of Copper Electrolytic System
The Industrial Application of Ulltrafiltation and Reverse Osmosis for the Recovery of Copper, Silver and Cyanide from Gold Leach Liquors
The Use of Ion Exchange to Improve Revenue via the Removal of Impurities
Unique Hydrometallurgical Process for Copper-Anode Slime Treatment at Saganoseki Smelter and Refinery
Utilization of CYANEX® 936 Reagent for Lithium Extraction in LiSX™ Process


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