Title:
METHOD FOR PRODUCING SCANDIUM COMPOUND, AND SCANDIUM COMPOUND
Document Type and Number:
WIPO Patent Application WO/2018/043242
Kind Code:
A1
Abstract:
Provided is a method for producing, from scandium oxalate crystals obtained through an oxalate conversion process, a readily-soluble scandium compound that dissolves easily in an aqueous solution such as an acid. This method for producing a scandium compound involves carrying out an oxalate conversion process using oxalic acid in a solution containing scandium, separating the product obtained through the oxalate conversion process into a liquid and scandium oxalate crystals, and obtaining a scandium compound by roasting the obtained scandium oxalate crystals at a temperature of 400°C to 800°C, preferably 400°C to 600°C.
Inventors:
HIGAKI TATSUYA (JP)
KOBAYASHI HIROSHI (JP)
KOBAYASHI HIROSHI (JP)
Application Number:
PCT/JP2017/030119
Publication Date:
March 08, 2018
Filing Date:
August 23, 2017
Export Citation:
Assignee:
SUMITOMO METAL MINING CO (JP)
International Classes:
C22B59/00; C22B1/02; C22B3/44
Domestic Patent References:
| WO2016084830A1 | 2016-06-02 | |||
| WO2015122397A1 | 2015-08-20 |
Foreign References:
| JPH09324227A | 1997-12-16 | |||
| CN103361486B | 2014-10-29 | |||
| JPH09208222A | 1997-08-12 |
Other References:
See also references of EP 3508593A4
Attorney, Agent or Firm:
SHOBAYASHI Masayuki et al. (JP)
Download PDF:
Previous Patent: ORGANIC LIGHT-EMITTING ELEMENT, AND LUMINESCENT MATERIAL AND COMPOUND USED THEREFOR
Next Patent: RADIO TERMINAL AND BASE STATION
Next Patent: RADIO TERMINAL AND BASE STATION