Title:
WATER TREATMENT FILTER AID AND WATER TREATMENT METHOD
Document Type and Number:
WIPO Patent Application WO/2013/145372
Kind Code:
A1
Abstract:
This filter aid comprises an aggregate resulting from a plurality of magnetic primary particles aggregating. The magnetic primary particles have: magnetic inorganic particles having an average particle size of 5-40 μm inclusive; and a coating layer that covers some or all of the surface of the magnetic inorganic particles and contains an organic fluorine compound supported by the magnetic inorganic particles. The value of the circularity of a 2D projected image projected onto a plane in a microscope field of view is in the range of at least 0.40 and less than 1.00 (not including 1.00).
Inventors:
FUKAYA TARO (JP)
YAMAZAKI ATSUSHI (JP)
TSUTSUMI KENJI (JP)
YAMANASHI ICHIRO (JP)
YAMAZAKI ATSUSHI (JP)
TSUTSUMI KENJI (JP)
YAMANASHI ICHIRO (JP)
Application Number:
PCT/JP2012/073191
Publication Date:
October 03, 2013
Filing Date:
September 11, 2012
Export Citation:
Assignee:
TOSHIBA KK (JP)
FUKAYA TARO (JP)
YAMAZAKI ATSUSHI (JP)
TSUTSUMI KENJI (JP)
YAMANASHI ICHIRO (JP)
FUKAYA TARO (JP)
YAMAZAKI ATSUSHI (JP)
TSUTSUMI KENJI (JP)
YAMANASHI ICHIRO (JP)
International Classes:
C02F1/28; B01D37/02; B01J20/26; B01J20/28; B03C1/00
Foreign References:
| JP2010207680A | 2010-09-24 | |||
| JP2012055784A | 2012-03-22 | |||
| JP2000034118A | 2000-02-02 | |||
| JP2011142301A | 2011-07-21 | |||
| JPH06254316A | 1994-09-13 |
Attorney, Agent or Firm:
KURATA, Masatoshi et al. (JP)
Masatoshi Kurata (JP)
Masatoshi Kurata (JP)
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