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Homogeneous catalysis technology of degrading organic pollutant decabromodiphenyl ether by using Keggin type heteropoly compound H3PW12O40 as catalyst

A technology of H3PW12O40 and heteropoly compounds, which is applied in the field of homogeneous catalysis of decabromodiphenyl ether, can solve problems such as pollution, and achieve the effects of simple process equipment, good environmental protection effect, and low energy consumption

Inactive Publication Date: 2016-02-03
NORTHEAST DIANLI UNIVERSITY
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Problems solved by technology

If Keggin-type heteropoly compounds H 3 PW 12 o 40 To solve the pollution problem caused by BDE209 is a problem that those skilled in the art are always eager to solve, but have not yet solved

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  • Homogeneous catalysis technology of degrading organic pollutant decabromodiphenyl ether by using Keggin type heteropoly compound H3PW12O40 as catalyst
  • Homogeneous catalysis technology of degrading organic pollutant decabromodiphenyl ether by using Keggin type heteropoly compound H3PW12O40 as catalyst
  • Homogeneous catalysis technology of degrading organic pollutant decabromodiphenyl ether by using Keggin type heteropoly compound H3PW12O40 as catalyst

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Embodiment Construction

[0020] refer to Figure 1-3 , a Keggin type heteropoly compound H of the present invention 3 PW 12 o 40 A homogeneous catalytic process for catalyst degradation of organic pollutant decabromodiphenyl ether, comprising the following steps:

[0021] (1) Keggin type heteropoly compound catalyst H 3 PW 12 o 40 Synthesis

[0022] Mix 99.95g of sodium tungstate, 32.23g of disodium hydrogen phosphate and 150mL of boiling water, add 80mL of concentrated sulfuric acid dropwise under magnetic stirring to obtain a solution with a light yellow precipitate, cool the solution to room temperature, add 60mL of diethyl ether for extraction, and the extracted lower layer The yellow heteropolyacid ether complex is purged by air flow to obtain a yellow solid, and dried in a vacuum oven at 70°C for 7-8 hours to obtain Keggin type heteropoly compound catalyst H 3 PW 12 o 40 ; figure 1 It is the Keggin type heteropoly compound catalyst H synthesized in the present invention 3 PW 12 o 40...

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Abstract

The invention discloses a homogeneous catalysis technology of degrading organic pollutant decabromodiphenyl ether by using Keggin type heteropoly compound H3PW12O40 as a catalyst. The homogeneous catalysis technology is characterized by comprising the steps of synthesis of the Keggin type heteropoly compound H3PW12O40 serving as the catalyst, characterization of the Keggin type heteropoly compound H3PW12O40 serving as the catalyst, homogeneous catalysis of the organic pollutant decabromodiphenyl ether, analysis of homogeneous catalysis degradation effects and degradation products and the like. The homogeneous catalysis technology has the advantages of scientific and reasonable process flow, simple process equipment, high degradation efficiency, low energy consumption, high comprehensive utilization ratio of the catalyst, good environmental protection effect and the like and solves the difficult problem of removing the organic pollutant decabromodiphenyl ether in the environment field.

Description

technical field [0001] The invention belongs to the field of environmental catalysis, in particular to Keggin type heteropoly compounds H 3 PW 12 o 40 A homogeneous catalytic process for catalyst degradation of organic pollutant decabromodiphenyl ether. Background technique [0002] Polybrominated diphenyl ethers (PBDEs) have been widely used as high-efficiency flame retardants in plastic products, and have aroused high environmental concerns because of their global distribution and good bioaccumulation. PBDEs have been detected in certain sediments, marine organisms, food samples, human blood and tissues. PBDEs have been reported to affect enzyme activity and act as endocrine disruptors, causing damage to the nervous system during critical periods of brain development. Among the typical commercial PBDEs products (such as penta, octa, and decaBDE), the demand for decaBDE (BDE209) is the largest, accounting for about 75% of the total PBDEs used worldwide. In the sediment...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62D3/38A62D101/28A62D101/22
Inventor 刘春光刘爽郑婷
Owner NORTHEAST DIANLI UNIVERSITY
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