DEVICE AND METHOD FOR REMOVING BORON

Japanese Patent JP2016155103

A

PROBLEM TO BE SOLVED: To provide a device and a method for removing boron, in each of which boron can be removed from a silica aqueous solution more easily than before.SOLUTION: In the device 10 for removing boron, the silica aqueous solution 11 and an extraction liquid 22, which are made to flow in an extraction flow passage 33, are turned upside down by utilizing a specific gravity difference so that the silica aqueous solution 11 is mixed with the extraction liquid 22. As a result, in the device 10 for removing boron, the contact area (the area of the liquid-liquid interface)between the silica aqueous solution 11 and the extraction liquid 22 is increased and such a probability becomes higher that boric acid in the silica aqueous solution 11 is captured by a boron extractant in the extraction liquid 22. Accordingly, boron can be extracted efficiently from the silica aqueous solution 11 and, in other words, boron can be removed from the silica aqueous solution 11 more easily than before.SELECTED DRAWING: Figure 1

HONMA NORIYUKI
FUKUNAKA YASUHIRO
SAITO MIKIKO

JP2015035614A

September 01, 2016

February 25, 2015

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UNIV WASEDA

C02F1/26; B01F3/08; B01F5/00

JP2006231255A	2006-09-07
JP2009000592A	2009-01-08
JP2013061354A	2013-04-04
JP2010125350A	2010-06-10
JPH10249330A	1998-09-22
JPH11653A	1999-01-06
JPS59111909A	1984-06-28
JP2012228666A	2012-11-22
JP2010269256A	2010-12-02

NOBUFUMI MATSUO ET AL.: "Boron Extraction with 2-Ethyl-1,3-hexanediol Using a Microchannel Device for High-Purity Source of S", JOURNAL OF THE ELECTROCHEMICAL SOCIETY, vol. 161(5), JPN6018028571, 4 April 2014 (2014-04-04), pages 93 - 96, ISSN: 0003931484

Masayoshi Yoshida
Hiromitsu Imaeda
Umemura Hiroaki

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