Purificating agent for flue gas and incinerated ash and purificating method using the same
First Claim
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1. An agent for purifying flue gas and incinerated ash comprising:
- a) one or more salts selected from the group consisting of alkali metal silicates;
b) hydrogencarbonate ion;
c) fluoride ion, d) less than about 20% by weight water-soluble alcohols or derivatives thereof, and water or water soluble solvents.
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Abstract
The present invention provides a purifying agent having an effect of removing or decomposing toxic substances contained in flue gas or incinerated ash. The purifying agent of the present invention contains one or more kinds of salts selected from alkali metal silicates, fluoride ion, hydrogencarbonate ion, and water-soluble alcohols or derivatives thereof.
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Citations
7 Claims
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1. An agent for purifying flue gas and incinerated ash comprising:
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a) one or more salts selected from the group consisting of alkali metal silicates;
b) hydrogencarbonate ion;
c) fluoride ion, d) less than about 20% by weight water-soluble alcohols or derivatives thereof, and water or water soluble solvents. - View Dependent Claims (3, 4, 5)
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2. The agent according to claim with 1, wherein the one or more kinds of salts selected from the the group consisting of alkali metal silicates is sodium silicate.
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6. An agent for purifying flue gas and incinerated ash comprising at least 20% by weight water or a water soluble solvent, and salts of alkali metal silicate;
- fluoride ion;
hydrogen-carbonate ion; and
water-soluble alcohols or derivatives thereof.
- fluoride ion;
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7. An agent for purifying flue gas and incinerated ash comprising at least about 0.1% to 23% by weight of one or more salts selected from the group consisting of alkali metal silicates;
- about 0.1% to 25% fluoride ion;
1×
10−
3% to 10% hydrogen-carbonate ion;
1% to 20% by weight water-soluble alcohols or derivatives thereof, and water.
- about 0.1% to 25% fluoride ion;
Specification
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Current AssigneeYasuo Fukutani
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Original AssigneeYasuo Fukutani
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InventorsKojima, Masami, Uchida, Masayoshi, Fujii, Naoya, Fukutani, Yasuo, Fukutani, Kikuko, Suzuki, Shunji, Wada, Yukio, Futahashi, Yoshiyuki, Wada, Kosuke, Nakayama, Eiichiro
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Primary Examiner(s)Langel, Wayne A.
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Assistant Examiner(s)Strickland, Jonas N.
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Application NumberUS09/673,433Time in Patent Office1,133 DaysField of Search423/210, 423/239.1, 423/242.2, 423/242.4, 423/240.R, 252/192US Class Current423/210CPC Class CodesA62D 2101/08 Toxic combustion residues, ...A62D 3/30 by reacting with chemical a...B01D 2257/206 Organic halogen compoundsB01D 53/70 Organic halogen compoundsB01D 53/77 Liquid phase processesB01D 53/78 with gas-liquid contactB09B 3/00 Destroying solid waste or t...F23J 15/003 for supplying chemicals to ...
