Title:
IRON RECOVERY AGENT AND IRON RECOVERY METHOD
Document Type and Number:
Japanese Patent JP2018162490
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To recover iron in a simplified process and improve the recovery rate.SOLUTION: Mixture step for adding, to an aqueous solution for dissolving the iron, a recovery agent as a liquid having a lower limit critical liquid temperature, to form a uniform solution, heating step for heating a solution obtained in the mixture step up to a temperature equal to or higher than the lower limit critical liquid temperature, recovery step for separately recovering a glycol dialkyl ether phase that has been separated into two phases in the heating step, and desorption step for adding, to an organic compound phase separately recovered, a desorption agent, are performed in the stated order, and iron is recovered from the obtained organic compound phase.SELECTED DRAWING: None
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Inventors:
NAKAYAMA SAKI
SAKURAI SAORI
UEDA KENTARO
SAKURAI SAORI
UEDA KENTARO
Application Number:
JP2017059903A
Publication Date:
October 18, 2018
Filing Date:
March 24, 2017
Export Citation:
Assignee:
OSAKA GAS CO LTD
International Classes:
C22B61/00; C22B3/30; C22B3/38; C22B3/40; C22B3/44
Domestic Patent References:
| JP2016166408A | 2016-09-15 | |||
| JP2011084783A | 2011-04-28 |
Other References:
SHYENI ET AL.: ""Ring-opening copolymerization (ROCOP):synthesis and properties of polyesters and polycarbonates"", CHEMICAL COMMUNICATIONS, vol. 51, JPN6020048877, 2015, GB, pages 6459 - 6479, XP055597129, ISSN: 0004411228, DOI: 10.1039/C4CC10113H
Attorney, Agent or Firm:
Patent business corporation r&c