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Abstract
Discussion Forum (0)
The rare-earth elements (REEs) are getting more and more attention in the scientific, industrial, and political communities in recent years owing in part to their role in green technologies including electric car motors, windmills (permanent magnets) and catalysts. Most of the REEs in the market are produced by China, which accounts for over 60% of global annual production. Canada is not yet in the production phase but hosts noticeable reserves that may change the monopoly of China in the near future. Naturally, REE members are present together in different proportions in minerals such as bastnäsite (Ln)FCO3, monazite (Ln)PO4 and xenotime YPO4. Froth flotation is the principal mineral processing technique applied for REEs-bearing minerals beneficiation and their separation from common gangue minerals such as dolomite, ankerite, siderite, calcite and fluorite. Numerous chemicals such as frothers, collectors (usually hydroxamic acids, fatty acids), depressants (usually sodium silicate) and activators are required to improve the floatability of desired minerals, while depressing gangue minerals. Further, REE mineral flotation is often conducted at high pulp temperatures (>60°C) to achieve a good separation between the target and the gangue minerals. While flotation is a well known and widely studied process, attempts must be done to make it more economical and feasible, depending on the mineralogy of each mining deposit.
The main objective of this research project is developing laboratory test work to achieve a concentrate grade of more than 30% REE-oxide with recoveries of 70% and more. Through experimental works, we will investigate the effects of different green and low-cost additives to firstly lower the consumption of expensive collectors, and secondly promote the separation of gangue minerals such as dolomite, ankerite, siderite, calcite and fluorite from REE-bearing minerals. The methodology in the experimental test will include testing various dosages of the different collectors and additives in the flotation test.
The knowledge gained through this study will help to deploy a viable mineral processing scheme to be used for the remotely located Ashram deposit (figure 1) in northern Quebec, Canada. Production of a high-grade concentrate will reduce costs associated with downstream hydrometallurgical treatment.
Figure1. Ashram deposit location
The main objective of this research project is developing laboratory test work to achieve a concentrate grade of more than 30% REE-oxide with recoveries of 70% and more. Through experimental works, we will investigate the effects of different green and low-cost additives to firstly lower the consumption of expensive collectors, and secondly promote the separation of gangue minerals such as dolomite, ankerite, siderite, calcite and fluorite from REE-bearing minerals. The methodology in the experimental test will include testing various dosages of the different collectors and additives in the flotation test.
The knowledge gained through this study will help to deploy a viable mineral processing scheme to be used for the remotely located Ashram deposit (figure 1) in northern Quebec, Canada. Production of a high-grade concentrate will reduce costs associated with downstream hydrometallurgical treatment.
Figure1. Ashram deposit location
The rare-earth elements (REEs) are getting more and more attention in the scientific, industrial, and political communities in recent years owing in part to their role in green technologies including electric car motors, windmills (permanent magnets) and catalysts. Most of the REEs in the market are produced by China, which accounts for over 60% of global annual production. Canada is not yet in the production phase but hosts noticeable reserves that may change the monopoly of China in the near future. Naturally, REE members are present together in different proportions in minerals such as bastnäsite (Ln)FCO3, monazite (Ln)PO4 and xenotime YPO4. Froth flotation is the principal mineral processing technique applied for REEs-bearing minerals beneficiation and their separation from common gangue minerals such as dolomite, ankerite, siderite, calcite and fluorite. Numerous chemicals such as frothers, collectors (usually hydroxamic acids, fatty acids), depressants (usually sodium silicate) and activators are required to improve the floatability of desired minerals, while depressing gangue minerals. Further, REE mineral flotation is often conducted at high pulp temperatures (>60°C) to achieve a good separation between the target and the gangue minerals. While flotation is a well known and widely studied process, attempts must be done to make it more economical and feasible, depending on the mineralogy of each mining deposit.
The main objective of this research project is developing laboratory test work to achieve a concentrate grade of more than 30% REE-oxide with recoveries of 70% and more. Through experimental works, we will investigate the effects of different green and low-cost additives to firstly lower the consumption of expensive collectors, and secondly promote the separation of gangue minerals such as dolomite, ankerite, siderite, calcite and fluorite from REE-bearing minerals. The methodology in the experimental test will include testing various dosages of the different collectors and additives in the flotation test.
The knowledge gained through this study will help to deploy a viable mineral processing scheme to be used for the remotely located Ashram deposit (figure 1) in northern Quebec, Canada. Production of a high-grade concentrate will reduce costs associated with downstream hydrometallurgical treatment.
Figure1. Ashram deposit location
The main objective of this research project is developing laboratory test work to achieve a concentrate grade of more than 30% REE-oxide with recoveries of 70% and more. Through experimental works, we will investigate the effects of different green and low-cost additives to firstly lower the consumption of expensive collectors, and secondly promote the separation of gangue minerals such as dolomite, ankerite, siderite, calcite and fluorite from REE-bearing minerals. The methodology in the experimental test will include testing various dosages of the different collectors and additives in the flotation test.
The knowledge gained through this study will help to deploy a viable mineral processing scheme to be used for the remotely located Ashram deposit (figure 1) in northern Quebec, Canada. Production of a high-grade concentrate will reduce costs associated with downstream hydrometallurgical treatment.
Figure1. Ashram deposit location
Improvement of Mineral Processing Scheme for Ashram Rare Earth Elements Deposit (Northern Quebec)
Mahya Mobaraki Moghaddam
Abstract
Discussion Forum (0)
The rare-earth elements (REEs) are getting more and more attention in the scientific, industrial, and political communities in recent years owing in part to their role in green technologies including electric car motors, windmills (permanent magnets) and catalysts. Most of the REEs in the market are produced by China, which accounts for over 60% of global annual production. Canada is not yet in the production phase but hosts noticeable reserves that may change the monopoly of China in the near future. Naturally, REE members are present together in different proportions in minerals such as bastnäsite (Ln)FCO3, monazite (Ln)PO4 and xenotime YPO4. Froth flotation is the principal mineral processing technique applied for REEs-bearing minerals beneficiation and their separation from common gangue minerals such as dolomite, ankerite, siderite, calcite and fluorite. Numerous chemicals such as frothers, collectors (usually hydroxamic acids, fatty acids), depressants (usually sodium silicate) and activators are required to improve the floatability of desired minerals, while depressing gangue minerals. Further, REE mineral flotation is often conducted at high pulp temperatures (>60°C) to achieve a good separation between the target and the gangue minerals. While flotation is a well known and widely studied process, attempts must be done to make it more economical and feasible, depending on the mineralogy of each mining deposit.
The main objective of this research project is developing laboratory test work to achieve a concentrate grade of more than 30% REE-oxide with recoveries of 70% and more. Through experimental works, we will investigate the effects of different green and low-cost additives to firstly lower the consumption of expensive collectors, and secondly promote the separation of gangue minerals such as dolomite, ankerite, siderite, calcite and fluorite from REE-bearing minerals. The methodology in the experimental test will include testing various dosages of the different collectors and additives in the flotation test.
The knowledge gained through this study will help to deploy a viable mineral processing scheme to be used for the remotely located Ashram deposit (figure 1) in northern Quebec, Canada. Production of a high-grade concentrate will reduce costs associated with downstream hydrometallurgical treatment.
Figure1. Ashram deposit location
The main objective of this research project is developing laboratory test work to achieve a concentrate grade of more than 30% REE-oxide with recoveries of 70% and more. Through experimental works, we will investigate the effects of different green and low-cost additives to firstly lower the consumption of expensive collectors, and secondly promote the separation of gangue minerals such as dolomite, ankerite, siderite, calcite and fluorite from REE-bearing minerals. The methodology in the experimental test will include testing various dosages of the different collectors and additives in the flotation test.
The knowledge gained through this study will help to deploy a viable mineral processing scheme to be used for the remotely located Ashram deposit (figure 1) in northern Quebec, Canada. Production of a high-grade concentrate will reduce costs associated with downstream hydrometallurgical treatment.
Figure1. Ashram deposit location
The rare-earth elements (REEs) are getting more and more attention in the scientific, industrial, and political communities in recent years owing in part to their role in green technologies including electric car motors, windmills (permanent magnets) and catalysts. Most of the REEs in the market are produced by China, which accounts for over 60% of global annual production. Canada is not yet in the production phase but hosts noticeable reserves that may change the monopoly of China in the near future. Naturally, REE members are present together in different proportions in minerals such as bastnäsite (Ln)FCO3, monazite (Ln)PO4 and xenotime YPO4. Froth flotation is the principal mineral processing technique applied for REEs-bearing minerals beneficiation and their separation from common gangue minerals such as dolomite, ankerite, siderite, calcite and fluorite. Numerous chemicals such as frothers, collectors (usually hydroxamic acids, fatty acids), depressants (usually sodium silicate) and activators are required to improve the floatability of desired minerals, while depressing gangue minerals. Further, REE mineral flotation is often conducted at high pulp temperatures (>60°C) to achieve a good separation between the target and the gangue minerals. While flotation is a well known and widely studied process, attempts must be done to make it more economical and feasible, depending on the mineralogy of each mining deposit.
The main objective of this research project is developing laboratory test work to achieve a concentrate grade of more than 30% REE-oxide with recoveries of 70% and more. Through experimental works, we will investigate the effects of different green and low-cost additives to firstly lower the consumption of expensive collectors, and secondly promote the separation of gangue minerals such as dolomite, ankerite, siderite, calcite and fluorite from REE-bearing minerals. The methodology in the experimental test will include testing various dosages of the different collectors and additives in the flotation test.
The knowledge gained through this study will help to deploy a viable mineral processing scheme to be used for the remotely located Ashram deposit (figure 1) in northern Quebec, Canada. Production of a high-grade concentrate will reduce costs associated with downstream hydrometallurgical treatment.
Figure1. Ashram deposit location
The main objective of this research project is developing laboratory test work to achieve a concentrate grade of more than 30% REE-oxide with recoveries of 70% and more. Through experimental works, we will investigate the effects of different green and low-cost additives to firstly lower the consumption of expensive collectors, and secondly promote the separation of gangue minerals such as dolomite, ankerite, siderite, calcite and fluorite from REE-bearing minerals. The methodology in the experimental test will include testing various dosages of the different collectors and additives in the flotation test.
The knowledge gained through this study will help to deploy a viable mineral processing scheme to be used for the remotely located Ashram deposit (figure 1) in northern Quebec, Canada. Production of a high-grade concentrate will reduce costs associated with downstream hydrometallurgical treatment.
Figure1. Ashram deposit location
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