Treatment agent for decomposition of chemical substance which comprises persulfuric acid salt and silver complex, and method for decomposition of chemical substance using same

A technology of chemical substances and persulfates, applied in organic chemistry, silver organic compounds, oxidized water/sewage treatment, etc., can solve problems such as difficult to degrade metal cyanide complexes, and achieve safe and effective degradation effects

Active Publication Date: 2013-01-16
MITSUBISHI GAS CHEM CO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, purification by adding persulfate is effective for chemical substances such as organochlorine compounds, but it is difficult to degrade refractory metal cyanide complexes

Method used

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  • Treatment agent for decomposition of chemical substance which comprises persulfuric acid salt and silver complex, and method for decomposition of chemical substance using same
  • Treatment agent for decomposition of chemical substance which comprises persulfuric acid salt and silver complex, and method for decomposition of chemical substance using same
  • Treatment agent for decomposition of chemical substance which comprises persulfuric acid salt and silver complex, and method for decomposition of chemical substance using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0075]Potassium hexacyanoferrite (special grade reagent manufactured by Kosou Chemical Co., Ltd.) was dissolved in pure water to prepare simulated polluted water with a concentration of 10 mgCN / L. 2,2'-bipyridine (a special grade reagent manufactured by Wako Pure Chemical Industries, Ltd.) as a complexing agent was dissolved in an aqueous sulfuric acid solution to prepare an acidic 2,2'-bipyridine aqueous solution of 0.16% by weight of sulfuric acid. Dissolve silver nitrate (special grade reagent manufactured by Kosou Chemical Co., Ltd.) as a silver compound in pure water to prepare a silver nitrate aqueous solution, and mix the above sulfuric acidic 2,2'-bipyridine aqueous solution to prepare silver as a silver complex. -2,2'-bipyridyl complex aqueous solution. 50.0 g of simulated polluted water was added to a glass sample tube, and 1.36 g of sodium acetate trihydrate (a special grade reagent manufactured by Koso Chemical Co., Ltd.) as a pH regulator and sodium persulfate (Ko...

Embodiment 2~4

[0088] As a complexing agent, 2-aminomethylpyridine (a reagent manufactured by Tokyo Chemical Industry Co., Ltd.), ethylenediamine (a special grade reagent manufactured by Wako Pure Chemical Industries, Ltd.), or tetramethylethylenediamine (a reagent manufactured by Sigma-Aldrich Co., Ltd.) was used. .LLC. manufactured reagent) in place of 2,2'-bipyridine, the experiment was carried out in the same manner as in Example 1. The results are shown in Table 1.

Embodiment 5~7

[0102] As a pH adjuster, use trisodium citrate dihydrate (special grade reagent manufactured by Komō Chemical Co., Ltd.), disodium phosphate dihydrate or sodium bicarbonate (special grade reagent manufactured by Komō Chemical Co., Ltd.) instead of acetic acid For sodium trihydrate, the experiment was carried out in the same manner as in Example 1 except that the standing time was 2 days, 6 days, or 4 days. The results are shown in Table 3.

[0103] [table 3]

[0104]

[0105] As shown in Table 3, acetic acid, citric acid, phosphoric acid and carbonic acid buffers can be used as pH regulators in the degradation method of the present invention. Especially, in the embodiment 1 that uses sodium acetate as pH regulator and the embodiment 7 that uses sodium bicarbonate as pH regulator, the degradation effect of cyanide is higher.

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Abstract

Disclosed are: a treatment agent for use in the decomposition of a chemical substance, which can decompose the chemical substance safely and with high efficiency and is economically advantageous; and a method for decomposing a chemical substance using the treatment agent. Specifically disclosed are: a treatment agent for use in the decomposition of a chemical substance, which is characterized by comprising a persulfuric acid salt and a silver complex; and a method for decomposing a chemical substance using the treatment agent.

Description

technical field [0001] The present invention relates to a treatment agent for degrading chemical substances containing persulfate and a silver complex, and a method for degrading chemical substances using the same. Background technique [0002] Most lands that have a history of treating chemical substances, such as volatile organic compounds, cyanides, and / or metal cyanide complexes that are subject to the Soil Pollution Prevention Act in Japan, are designated as areas that require treatment, and when properties change Reported areas that constitute social issues. In addition, crude oil products that are subject to the Japanese Oil Pollution Guidelines lead to the occurrence of oil pollution and constitute a cause of adverse effects on the living environment. The cyanide here includes, for example, cyanides that generate cyanide ions such as hydrogen cyanide and sodium cyanide. In addition, examples of metal cyanide complexes include iron cyanide complexes, ions of copper ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62D3/38A62D3/36B09B3/00B09C1/02B09C1/08C02F1/72C07D213/22C07D213/30C07D213/38C07D213/79C07D239/42C07F1/10A62D101/43A62D101/45
CPCC07D213/30B09C1/08C07D213/79C07D213/38C07D239/42C07F1/005B09C1/002C07D213/22A62D3/38
Inventor 吉冈成康君塚健一吉田净海老原孝新开洋介
Owner MITSUBISHI GAS CHEM CO INC
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