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US 2015/0307966 A1Published application
A Process, Method and Plant for Recovering Scandium
AssigneeClean TeQ Pty Ltd
InventorsPeter Voight, Nikolai Zontov, John Carr
Life of this patent
Estimating the term…
Abstract
The present invention relates to a process, method and plant for recovering scandium and ions containing scandium using an ion exchange resin from a feed stream. The feed stream may be, but is by no means limited to, a leach liquor or leach pulp.
Claims22
A process for recovering scandium from a feed stream using an ion exchange resin, the process including:
- a) contacting the feed stream with an ion exchange resin to sorb scandium or ions containing scandium from the feed stream onto the ion exchange resin under acidic conditions to form a loaded resin;
- treating the loaded resin with a neutralising solution that deprotonates the loaded resin, wherein the neutralising solution after deprotonating the loaded resin is lean in scandium and ions containing scandium;
- and
- c) treating the loaded resin with a stripping solution to desorb scandium or ions containing scandium from the resin and form a product stream rich in scandium or ions containing scandium, and a barren resin.
1 more element
A method for recovering scandium from a feed stream using an ion exchange resin, the method including:
- a) sorbing scandium or ions containing scandium from the feed stream onto the ion exchange resin under acidic conditions to form a loaded resin;
- b) deprotonating the loaded resin by contacting the loaded resin with a neutralising solution, wherein the neutralising solution after deprotonating the loaded resin is lean in scandium;
- and
- c) desorbing scandium or ions containing scandium from the ion exchange resin under neutral or alkaline conditions to form a product stream rich in scandium or ions containing scandium.
1 more element
A plant for recovering scandium from a feed stream using an ion exchange resin, the plant including:
- a contacting stage in which the feed stream is contacted with the ion exchange resin to sorb scandium or ions containing scandium from the feed stream onto the ion exchange resin under acid conditions to form a loaded resin;
- a first treating stage in which the loaded resin is treated with a neutralising solution that deprotonates the loaded resin, wherein the neutralising solution after deprotonating the loaded resin is lean in scandium or ions containing scandium;
- and
- a second treating stage in which the loaded resin is treated with a stripping solution to desorb scandium or ions containing scandium from the resin and form a product stream rich in scandium or ions containing scandium and a barren resin.
1 more element
Dependencies are inferred from the claim text.