Title:
RECYCLING METHOD OF USED TITANIUM COMPOUND AS FLUORINE COLLECTOR
Document Type and Number:
Japanese Patent JP2007275733
Kind Code:
A
Abstract:
To develop a method of recovering used titanium compounds from waste containing titanium compounds and using for a fluorine treatment.
The recycling method of the titanium compounds as the collector comprises the following processes: the waste containing the titanium compounds is subjected to pretreatments of an alkali treatment, an acid treatment, and a chelating agent addition treatment and/or a flocculant addition treatment, and the obtained titanium-containing compound is used to collect fluorine, and fluorine-containing compounds from drain containing fluorine, and the fluorine-containing compounds at a low concentration.
COPYRIGHT: (C)2008,JPO&INPIT
Inventors:
ENDO MASATOSHI
HONDA TSUTOMU
HONDA TSUTOMU
Application Number:
JP2006104049A
Publication Date:
October 25, 2007
Filing Date:
April 05, 2006
Export Citation:
Assignee:
TOHOKU KOEKI KK
International Classes:
B09B3/00; C02F1/58
Domestic Patent References:
JP2004097860A | 2004-04-02 | |||
JPH0657476A | 1994-03-01 | |||
JP2003320365A | 2003-11-11 | |||
JP2005040654A | 2005-02-17 |
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Takashi Ishida
Tetsuji Koga
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