Title:
石炭灰から希少金属元素の抽出方法および希少金属元素の抽出装置
Document Type and Number:
Japanese Patent JP6695491
Kind Code:
B2
Abstract:
One embodiment of the present invention relates to a method for extracting rare metal elements, comprising: a first step of preparing an extraction filtrate by reacting coal ash and an extraction solvent, which includes a halogen acid; and a second step of adding a non-halogen acid extraction solvent to the extraction filtrate, and applying an ultrasonic vibration heat source thereto and reacting the same. Therefore, the present invention can extract, with high efficiency, yttrium (Y), neodymium (Nd) and gallium (Ga) from coal ash, which is a waste product of electric power.
Inventors:
Hiroshi Kim
Park tin cloud
Hong Yin
Zheng Zhao
Park tin cloud
Hong Yin
Zheng Zhao
Application Number:
JP2019501988A
Publication Date:
May 20, 2020
Filing Date:
January 05, 2018
Export Citation:
Assignee:
KOREA ELECTRIC POWER CORPORATION
International Classes:
C22B59/00; C22B3/06; C22B3/10; C22B7/02; C22B23/00; C22B26/12; C22B26/20; C22B34/14; C22B34/22; C22B34/24; C22B58/00
Domestic Patent References:
| JP2015500399A | ||||
| JP2013104098A | ||||
| JP2013531127A | ||||
| JP2016536454A |
Foreign References:
| CN101177733A | ||||
| WO2013145455A1 |
Attorney, Agent or Firm:
Patent Business Corporation Saegusa International Patent Office