Title:
塩の回収のための方法および配置
Document Type and Number:
Japanese Patent JP6877459
Kind Code:
B2
Abstract:
A method for recovery of salts comprises providing (210) of an initial aqueous solution comprising ions of Na, K, Cl and optionally Ca or a material which when brought in contact with water forms an initial aqueous solution comprising ions of Na, K, Cl and optionally Ca. The start material is treated (230) into an enriched aqueous solution having a concentration of CaCl2 of at least 15% by weight. The treatment (230) comprises at least one of reduction of water content and addition of Ca. The treatment (230) generates a solid mix of Na Cl and KCl. The solid mix of NaCl and KCl is separated (235) from the enriched aqueous solution, giving a depleted aqueous solution comprising ions of Ca and Cl as main dissolved substances. An arrangement for recovery of salts is also disclosed.
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Inventors:
Cohen, Yarib
Application Number:
JP2018551745A
Publication Date:
May 26, 2021
Filing Date:
December 19, 2016
Export Citation:
Assignee:
Easy Mining Sweden Actievolag
International Classes:
B01D9/02; B09B3/70
Domestic Patent References:
| JP2000512687A | ||||
| JP2003001218A | ||||
| JP9316557A |
Foreign References:
| CN202007141U | ||||
| US20120205253 | ||||
| US3900553 | ||||
| US2788257 |
Other References:
BALAREW Chr. ほか,Improved Treatment of Waste Brines,8th World Salt Symposium,Elsevier,2000年,Vol.1,P.551-554
Attorney, Agent or Firm:
Ryoichi Takaoka
Nao Oda
Akiyo Iwahori
Kaoru Takahashi
Nao Oda
Akiyo Iwahori
Kaoru Takahashi
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