Title:
METHOD FOR REMOVAL OF UNBURNED CARBON FROM FLY ASH
Document Type and Number:
WIPO Patent Application WO/2007/074657
Kind Code:
A1
Abstract:
Disclosed is a method for removing unburned carbon from fly ash at low cost and
within a short time. The method comprises the steps of adding a collecting agent
to fly ash directly, agitating/mixing the mixture in a mixer (5), adding water
to the resulting mixed material in a mixing vessel (7) to yield a slurry, applying
a shearing force to the slurry in a submerged stirrer (9), and performing flotation
separation of unburned carbon in a flotator (15).
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/JP2006/325019
Publication Date:
July 05, 2007
Filing Date:
December 15, 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; B01F29/64; B03D1/00; B09B3/00; B09B5/00; C04B18/08
Foreign References:
| JP3613347B1 | 2005-01-26 | |||
| JPH11278914A | 1999-10-12 | |||
| JPS63104668A | 1988-05-10 |
Other References:
See also references of EP 1980326A4
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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