Title:
ダイオキシン類による汚染物の改良剤およびその用途
Document Type and Number:
Japanese Patent JP4219461
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To reduce the contamination degree by dioxins of soil or the like to a low level by using a substance containing at least one kind which is selected from a group comprising dolomite and burned dolomite, as a reforming agent for contaminants. SOLUTION: This reforming agent for contaminants by dioxins contains at least one kind being selected from a group comprising dolomite and burned dolomite which is formed by burning dolomite. In this case, dolomite is a rock of a composite carbonate CaMg(CO3)3 of calcium and magnesium, or of which the major component is the composite carbonate CaMg(CO3)3. Also, when the dolomite is heated, the dolomite is decomposed at 700-800 deg.C and becomes burned products of calcium carbonate and magnesium oxide, or a substance of which the major components are the burned products of calcium carbonate and magnesium oxide (burned dolomite A), and at 900-950 deg.C, becomes burned products of calcium oxide and magnesium oxide, or a substance of which the major components are the burned products of calcium oxide and magnesium oxide (burned dolomite B).
Inventors:
Nobuhide Maeda
Application Number:
JP1618199A
Publication Date:
February 04, 2009
Filing Date:
January 25, 1999
Export Citation:
Assignee:
Nobuhide Maeda
Mochigase Co., Ltd.
Mochigase Co., Ltd.
International Classes:
B09C1/02; B09C1/08; F23G7/14
Domestic Patent References:
| JP5261356A | ||||
| JP64500330A | ||||
| JP10316967A | ||||
| JP10297983A |
Attorney, Agent or Firm:
Mikio Hatta
Atsushi Nogami
Yasuo Nara
Etsuko Saito
Atsushi Nogami
Yasuo Nara
Etsuko Saito
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