Title:
METHOD FOR CONTROLLING ELUTION OF FLUORINE FROM STEEL SLAG AND UNDERGROUND BURYING MATERIAL
Document Type and Number:
Japanese Patent JP2005239509
Kind Code:
A
Abstract:
To provide a method for efficiently controlling an eluting amount of fluorine from steel slag containing fluorine at a low cost.
The elution of fluorine from steel slag is effectively controlled by mixing a compound comprising water-soluble calcium or/and a calcium mixture containing a compound comprising water-soluble calcium into steel slag containing fluorine. By mixing a concrete waste material into the steel slag containing fluorine, the eluting amount of fluorine from the steel slag is reduced to a level lower than the legal standard and the mixture is usable as an underground burying material.
More Like This:
| JP2005250851 | PHYSICAL DISTRIBUTION NETWORK SYSTEM |
| JP3239893 | GARBAGE TREATMENT APPARATUS |
| JP2009073706 | FUNCTIONAL FLY ASH-MOLDED ARTICLE AND FUNCTIONAL FLY ASH |
Inventors:
MATSUMURA SHOGO
NAKAO RYUJI
YAMAMOTO TETSUYA
NAKAO RYUJI
YAMAMOTO TETSUYA
Application Number:
JP2004054356A
Publication Date:
September 08, 2005
Filing Date:
February 27, 2004
Export Citation:
Assignee:
NIPPON STEEL & SUMIKIN SST
International Classes:
B09B3/00; C04B5/00; E01C3/00; E02B3/18; (IPC1-7): C04B5/00; B09B3/00; E02B3/18
Domestic Patent References:
| JP2003183718A | 2003-07-03 | |||
| JP2001072447A | 2001-03-21 | |||
| JP2000335946A | 2000-12-05 | |||
| JP2003261365A | 2003-09-16 | |||
| JP2001316143A | 2001-11-13 | |||
| JP2003119057A | 2003-04-23 | |||
| JP2001259570A | 2001-09-25 | |||
| JPH0762346A | 1995-03-07 |
Attorney, Agent or Firm:
Shunta Naito
Hisataka Tanaka
Hisataka Tanaka
Previous Patent: ARTIFICIAL CRYSTAL, AND METHOD FOR MANUFACTURING ARTIFICIAL CRYSTAL
Next Patent: METHOD AND APPARATUS FOR DRILLING HOLE IN COMPOST
Next Patent: METHOD AND APPARATUS FOR DRILLING HOLE IN COMPOST