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Title:
DEVICE AND METHOD FOR SEPARATING AND EXTRACTING SODIUM AND POTASSIUM
Document Type and Number:
WIPO Patent Application WO/2011/010681
Kind Code:
A1
Abstract:
Disclosed is a device for separating and extracting, which is provided with: an ash reaction device (12) in which a solution having a temperature of approximately 60°C is created using incineration ash containing sodium, potassium, and chloride; a cooling crystallization device (16) in which potassium chloride is generated and separated by reducing the temperature of the solution to 30°C; an absorption tower (11) in which sodium bicarbonate is generated and separated by reacting the solution and a carbon dioxide-containing gas; and a circulation path (13) in which the liquid, from which potassium chloride and sodium bicarbonate were generated and separated in the cooling crystallization device (16) and the absorption tower (11), is returned to the ash reaction device (12).

Inventors:
HAMANO SHUJI
YAMAMOTO TSUNEHIRA
OKUMURA SATOSHI
SASAKI KATSUYA
Application Number:
PCT/JP2010/062295
Publication Date:
January 27, 2011
Filing Date:
July 22, 2010
Export Citation:
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Assignee:
HITACHI SHIPBUILDING ENG CO (JP)
HAMANO SHUJI
YAMAMOTO TSUNEHIRA
OKUMURA SATOSHI
SASAKI KATSUYA
International Classes:
C01D3/14; C01D3/16
Foreign References:
JP2001026418A2001-01-30
JPH11209121A1999-08-03
JP2006176384A2006-07-06
Attorney, Agent or Firm:
HARADA, YOHEI (JP)
Yohei Harada (JP)
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