Title:
METHOD FOR REMOVAL OF UNBURNED CARBON IN FLY ASH
Document Type and Number:
WIPO Patent Application WO/2007/072718
Kind Code:
A1
Abstract:
The object is to remove unburned carbon in a fly ash in a stable and economically
advantageous manner. A fly ash, water and a trapping agent are mixed together
in a hybrid mixer (2), a shearing force is applied to the mixture to prepare a slurry
containing surface-modified unburned carbon within a short time, a foaming
agent is added to the slurry, and then the unburned carbon is separated by performing
flotation separation in a flotator (11).
Inventors:
ABE KAZUO (JP)
SUZUKI TAKAO (JP)
KOYAMA HITOSHI (JP)
MATSUO KAZUYOSHI (JP)
SAITO SHINICHIRO (JP)
SUZUKI TAKAO (JP)
KOYAMA HITOSHI (JP)
MATSUO KAZUYOSHI (JP)
SAITO SHINICHIRO (JP)
Application Number:
PCT/JP2006/324831
Publication Date:
June 28, 2007
Filing Date:
December 13, 2006
Export Citation:
Assignee:
MITSUI SHIPBUILDING ENG (JP)
ABE KAZUO (JP)
SUZUKI TAKAO (JP)
KOYAMA HITOSHI (JP)
MATSUO KAZUYOSHI (JP)
SAITO SHINICHIRO (JP)
ABE KAZUO (JP)
SUZUKI TAKAO (JP)
KOYAMA HITOSHI (JP)
MATSUO KAZUYOSHI (JP)
SAITO SHINICHIRO (JP)
International Classes:
B03D1/02; B01F7/02; B01F15/02; B03B1/00; B09B3/00; B09B5/00; C04B18/08
Foreign References:
| JP3613347B1 | 2005-01-26 | |||
| JPS63143928A | 1988-06-16 | |||
| JPS63104668A | 1988-05-10 |
Other References:
See also references of EP 1970125A4
Attorney, Agent or Firm:
OGAWA, Shin-ichi et al. (Noguchi & Saika International Patent Office, 37 Kowa Building, 4-5, Tsukiji 1-chom, Chuo-ku Tokyo 45, JP)
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