Title:
希土類の回収のための方法
Document Type and Number:
Japanese Patent JP7313430
Kind Code:
B2
Abstract:
A method for the precipitation of rare earth sulphate, the method including subjecting a crude rare earth sulphate solution to precipitation in the presence of a water soluble, volatile, organic compound to produce a rare earth sulphate precipitate and an acidic supernatant. The organic compound is preferably selected from the group consisting of methanol, ethanol, iso-propanol, tert-butanol, acetone or mixtures thereof, and is preferably methanol. Preferably, the organic compound is used in the precipitation at a weight ratio of between 0.25:1 to 1.5:1, and preferably 0.5:to 1.25:1, with the crude sulphate solution.
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Inventors:
Alexander Dean Elliott
Application Number:
JP2021510496A
Publication Date:
July 24, 2023
Filing Date:
May 02, 2019
Export Citation:
Assignee:
Arafura Resources Ltd
International Classes:
C22B59/00; C22B3/04; C22B3/06; C22B3/20; C22B3/44
Foreign References:
| US20160032419 | ||||
| WO2017100933A1 |
Attorney, Agent or Firm:
Yasuhiko Murayama
Shinya Mihiro
Tatsuhiko Abe
Shinya Mihiro
Tatsuhiko Abe
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