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Homogenous catalyst system for catalyzing decomposition of oxygen-releasing agent hydrogen peroxide

A homogeneous catalysis, hydrogen peroxide technology, applied in physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, oxygen preparation, etc., can solve the problem of low catalytic activity

Inactive Publication Date: 2007-06-06
BEIJING INSTITUTE OF CLOTHING TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Alkali metal salts and iodides of oxyacids of VIb metals such as sodium tungstate and potassium iodide have been used as catalysts for decomposition, but the catalytic activity is very low

Method used

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  • Homogenous catalyst system for catalyzing decomposition of oxygen-releasing agent hydrogen peroxide
  • Homogenous catalyst system for catalyzing decomposition of oxygen-releasing agent hydrogen peroxide
  • Homogenous catalyst system for catalyzing decomposition of oxygen-releasing agent hydrogen peroxide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Na 2 WO 4 2H 2 O(A) and KI(B) are respectively made into 0.025mol / L solutions, hydrogen peroxide is made into a solution with a concentration of 0.78mol / L, the temperature is controlled at 0°C, the amount of sodium carbonate is 1.5g, and the total number of moles of the catalyst is 0.00025mol , the total volume of the reaction system is 60ml, the molar ratio of A to B is 7:3, and the experiment is carried out according to the above steps. The results are shown in Table 1.

Embodiment 2

[0018] Other conditions are the same as in Example 1, except that the molar ratio of A to B is changed to 6:4, and the experiment is carried out according to the above steps. The results are shown in Table 1.

Embodiment 3

[0020] Other conditions are the same as in Example 1, except that the molar ratio of A to B is changed to 5:5, and the experiment is carried out according to the above steps. The results are shown in Table 1.

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PUM

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Abstract

The homogeneous catalyst system for catalyzing decomposition of oxygen releasing agent hydrogen peroxide includes oxo acid, oxo salt or peroxy acid complex of VIb metal; iodine, hydroiodic acid or its salt; and alkali cocatalyst hydroxide, strong base-weak acid salt or organic base compound. The composite catalyst system is used in the decomposition of oxygen releasing agent hydrogen peroxide and can reach unexpected effect. It has high catalytic activity, smooth oxygen release, capacity of forming homogeneous solution with water, reuseability, long shelf life and environment friendship.

Description

technical field [0001] The invention relates to a homogeneous catalytic system for catalyzing the decomposition of oxygen-releasing agent hydrogen peroxide and its application in oxygen production. technical background [0002] Hydrogen peroxide, as an oxidizing agent, has received widespread attention in recent years due to its environmental friendliness. Simply using potassium iodide to decompose hydrogen peroxide is also a subject of interest to scientists in recent years. Xiang Mingli and others published in "Journal of Southwest University for Nationalities. Natural Science Edition" Volume 28, Issue 3 and Volume 29, Issue 1 The two papers "New Phenomena in the Catalytic Decomposition of Potassium Iodide Hydrogen Peroxide" and "Questioning the Catalytic Concept of "Catalytic Decomposition of Potassium Iodide Hydrogen Peroxide"" have carried out an investigation on the mechanism of the decomposition of hydrogen peroxide by potassium iodide and the special phenomena in the...

Claims

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Application Information

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IPC IPC(8): B01J23/30B01J27/08B01J27/132C01B13/02
Inventor 刘振东陈小斌
Owner BEIJING INSTITUTE OF CLOTHING TECHNOLOGY
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