Treatment agent for degrading chemical substance containing persulfate and silver complex, and method for degrading 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: 2016-01-13
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 degrading chemical substance containing persulfate and silver complex, and method for degrading chemical substance using same
  • Treatment agent for degrading chemical substance containing persulfate and silver complex, and method for degrading chemical substance using same
  • Treatment agent for degrading chemical substance containing persulfate and silver complex, and method for degrading chemical substance using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0075] Dissolve potassium hexacyanoferrate (a special grade reagent manufactured by Kozong Chemical Co., Ltd.) 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 a 0.16 wt% sulfuric acid acidic 2,2'-bipyridine aqueous solution. Silver nitrate (a special grade reagent manufactured by Kozong Chemical Co., Ltd.) as a silver compound was dissolved in pure water to prepare a silver nitrate aqueous solution, and the above-mentioned sulfuric acid acidic 2,2'-bipyridine aqueous solution was mixed to prepare silver as a silver complex -2,2'-Bipyridine complex aqueous solution. Put 50.0 g of simulated polluted water into a glass sample tube, 1.36 g of sodium acetate trihydrate (special grade reagent manufactured by Kozong Chemical Co., Ltd.) as a pH adjuster, and sodium persulfat...

Embodiment 2~4

[0088] As the complexing agent, 2-aminomethylpyridine (reagent manufactured by Tokyo Chemical Industry Co., Ltd.), ethylenediamine (special grade reagent manufactured by Wako Pure Chemical Industries, Ltd.), or tetramethylethylenediamine (Sigma-AldrichCo. Reagent manufactured by LLC.), except that 2,2'-bipyridine was replaced, the experiment was performed 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 Kozon Chemical Co., Ltd.), disodium phosphate dihydrate or sodium bicarbonate (special grade reagent manufactured by Kozon Chemical Co., Ltd.) instead of acetic acid Sodium trihydrate was tested 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 adjusting agents in the degradation method of the present invention. In particular, in Example 1 in which sodium acetate was used as the pH adjuster and Example 7 in which sodium bicarbonate was used as the pH adjuster, the degradation effect of cyanide was higher.

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PUM

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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 the degradation of chemical substances containing persulfate and a silver complex and a method for degradation of chemical substances using the same. Background technique [0002] Most of the land with a history of processing chemical substances that are subject to the Japanese Soil Pollution Control Law, such as volatile organic compounds, cyanide and / or metal cyanide complexes, are designated as areas to be processed and required when their properties change The reported area constitutes a social problem. In addition, crude oil products that are the subject of the Japanese Oil Pollution Guidelines cause oil pollution and constitute a cause of adverse effects on the living environment. The cyanide here includes, for example, hydrogen cyanide and sodium cyanide that generate cyanide ions. In addition, examples of metal cyanide complexes include ferricyanide complexes, copper cyanide complex ions, and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A62D3/38A62D3/36B09B3/00B09C1/02B09C1/08C02F1/72C07D213/22C07D213/30C07D213/38C07D213/79C07D239/42C07F1/10A62D101/43A62D101/45
CPCA62D3/38B09C1/002B09C1/08C07D213/22C07D213/30C07D213/38C07D213/79C07D239/42C07F1/005
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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