Title:
GRANULATION METHOD OF COAL ASH
Document Type and Number:
Japanese Patent JP2019042643
Kind Code:
A
Abstract:
To provide a granulation method of coal ash capable of easily adjusting particle diameter or particle shape.SOLUTION: There is provided a granulation method of coal ash including mixing and stirring a coal ash from which free calcium component is removed and a first liquid to make a slurry, and dropping out the produced slurry to a second liquid and gelatinizing the same. By removing the free calcium component from the coal ash, aggregation of the coal ash in the first liquid is prevented, and granulation of the coal ash is available. The first liquid can be a sodium alginate aqueous solution or a potassium alginate aqueous solution and the second liquid can be a calcium chloride aqueous solution or a barium chloride aqueous solution. Free calcium component concentration in the coal ash is preferably 0.15 mass% or less.SELECTED DRAWING: Figure 1
Inventors:
KOBAYAKAWA MAKOTO
IMAI TOSHIO
IMAI TOSHIO
Application Number:
JP2017166385A
Publication Date:
March 22, 2019
Filing Date:
August 31, 2017
Export Citation:
Assignee:
TAIHEIYO CEMENT CORP
International Classes:
B01J2/08
Domestic Patent References:
| JPH10296207A | 1998-11-10 | |||
| JP2003320342A | 2003-11-11 | |||
| JP2012232234A | 2012-11-29 | |||
| JPH01207126A | 1989-08-21 | |||
| JPS6185419A | 1986-05-01 | |||
| JPS50159879A | 1975-12-24 | |||
| JP2005008494A | 2005-01-13 | |||
| JP2011044070A | 2011-03-03 |
Attorney, Agent or Firm:
Jun Nakai