Method of recovering platinum group elements
AssigneesDowa Metals & Mining Co., Ltd., Tanaka Kikinzoku Kogyo K.K.
InventorsYuzuru Nakamura, Minoru Kawasaki, Katsunori Yamaguchi, Tetsuya Ueda, Keiko Ishizaki
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Abstract
Provided is a method of unevenly distributing a specific element in a copper phase out of platinum group elements that exist in the copper phase, including further adding copper into a molten copper phase containing the platinum group elements including at least rhodium, thereby increasing a distribution ratio of rhodium in the molten copper phase.
Claims12
A method of recovering platinum group elements, comprising:
- further adding copper into a molten copper phase containing platinum group elements including at least rhodium, thereby
- increasing a content of the rhodium in an upper phase of the molten copper phase;
- and
- recovering the platinum group elements including the rhodium from the upper phase.
A method of recovering platinum group elements, comprising:
- adding iridium into a molten copper phase containing platinum group elements including at least rhodium, and moving the iridium to a bottom phase of the molten copper phase, thereby
- increasing a content of the rhodium in an upper phase of the molten copper phase;
- and
- recovering the platinum group elements including the rhodium from the upper phase.
A method of recovering platinum group elements, comprising:
- adding manganese into a molten copper phase containing platinum group elements including at least rhodium, thereby
- increasing a content of the rhodium in an upper phase of the molten copper phase;
- and
- recovering the platinum group elements including the rhodium from the upper phase.
A method of recovering platinum group elements, comprising:
- adding manganese into a molten copper phase containing platinum group elements including rhodium and at least one of platinum and palladium, thereby
- increasing a content of the rhodium and at least one of the platinum and the palladium in an upper phase of the molten copper phase;
- and
- recovering the platinum group elements from the upper phase.
Dependencies are inferred from the claim text.