Title:
PHOSPHOROUS-COLLECTING MATERIAL, METHOD FOR PRODUCING PHOSPHOROUS-COLLECTING MATERIAL, AND PHOSPHOROUS COLLECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2013/168245
Kind Code:
A1
Abstract:
The present invention provides: a phosphorous-collecting material which has excellent phosphorous adsorption performance and can exhibit an excellent sedimentation property after adsorbing phosphorous; a method for producing the phosphorous-collecting material; and a phosphorous collection method. The phosphorous-collecting material according to the present invention comprises an amorphous calcium silicate hydrate alone or a complex of the amorphous calcium silicate hydrate and Ca(OH)2, wherein the amorphous calcium silicate hydrate is produced by mixing an aqueous sodium silicate solution with lime under non-heating conditions, and wherein the Ca/Si molar ratio in the hydrate alone or the complex is 0.8 to 20. The method for producing a phosphorous-collecting material according to the present invention comprises mixing an aqueous sodium silicate solution with lime under non-heating conditions to produce the amorphous calcium silicate hydrate alone or the complex of the amorphous calcium silicate hydrate and Ca(OH)2. The phosphorous collection method according to the present invention comprises mixing phosphorous-containing water with the amorphous calcium silicate hydrate alone or the complex of the amorphous calcium silicate hydrate and Ca(OH)2 to produce aggregates on which phosphorous is adsorbed and then subjecting the aggregates to solid/liquid separation to collect phosphorous.
Inventors:
AMAMOTO YUSAKU (JP)
AKETO TSUYOSHI (JP)
ICHITSUBO KOUKI (JP)
SUZUKI TSUTOMU (JP)
MINOWA NOBUTAKA (JP)
KARIBE HAJIME (JP)
NAKAMURA HIROSHI (JP)
NISHIMURA YASUMASA (JP)
AKETO TSUYOSHI (JP)
ICHITSUBO KOUKI (JP)
SUZUKI TSUTOMU (JP)
MINOWA NOBUTAKA (JP)
KARIBE HAJIME (JP)
NAKAMURA HIROSHI (JP)
NISHIMURA YASUMASA (JP)
Application Number:
PCT/JP2012/061893
Publication Date:
November 14, 2013
Filing Date:
May 09, 2012
Export Citation:
Assignee:
TAIHEIYO CEMENT CORP (JP)
ONODA CHEM IND CO LTD (JP)
AMAMOTO YUSAKU (JP)
AKETO TSUYOSHI (JP)
ICHITSUBO KOUKI (JP)
SUZUKI TSUTOMU (JP)
MINOWA NOBUTAKA (JP)
KARIBE HAJIME (JP)
NAKAMURA HIROSHI (JP)
NISHIMURA YASUMASA (JP)
ONODA CHEM IND CO LTD (JP)
AMAMOTO YUSAKU (JP)
AKETO TSUYOSHI (JP)
ICHITSUBO KOUKI (JP)
SUZUKI TSUTOMU (JP)
MINOWA NOBUTAKA (JP)
KARIBE HAJIME (JP)
NAKAMURA HIROSHI (JP)
NISHIMURA YASUMASA (JP)
International Classes:
B01J20/10; C02F1/28; C02F1/58
Foreign References:
| JP2012086107A | 2012-05-10 | |||
| JP2001259414A | 2001-09-25 | |||
| JP2004249263A | 2004-09-09 | |||
| JP2009285635A | 2009-12-10 | |||
| JP2009285636A | 2009-12-10 | |||
| JP2012050975A | 2012-03-15 |
Attorney, Agent or Firm:
ARAI, NORIHIKO (JP)
Norihiko Arai (JP)
Norihiko Arai (JP)
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