Catalyst for degrading hydrogen peroxide as well as preparation method and application of catalyst

A catalyst, hydrogen peroxide technology, applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc. The effect of large processing capacity, easy control and high conversion rate

Active Publication Date: 2015-07-22
XIAN CATALYST NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a large amount of hydrogen peroxide must be used in the HPPO process, and the methanol solvent needs to be recycled and recycled. The residual hydrogen peroxide in the process of solvent recovery will decompose and generate oxygen, which will gradually accumulate, posing a serious safety hazard
[0003] Since a large amount of hydrogen peroxide is used in the chemical industry, hydrogen peroxide will naturally decompose to generate oxygen, and solvents containing hydrogen peroxide have potential safety hazards in the recycling process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The catalyst of this embodiment includes an activated carbon carrier, and Pd, Pt and K loaded on the activated carbon carrier; the mass percentage of Pd in ​​the catalyst is 0.9%, the mass percentage of Pt is 0.3%, and the mass percentage of K is 1.1%; the average particle diameter of the activated carbon carrier is 1.5mm, and the specific surface area is 1050m 2 / g.

[0033] The preparation method of present embodiment catalyst comprises the following steps:

[0034] Step 1, the palladium chloride that will contain 0.9g palladium is dissolved in the nitric acid of 1% mass percent concentration, the platinum chloride that will contain 0.3g platinum is dissolved in the nitric acid of 1.5% mass percent concentration, then the two are mixed Evenly, to obtain solution A, immerse 97.7g of activated carbon carrier in it, ultrasonically treat for 2.5h at a temperature of 65°C, and filter to obtain solid material A after natural cooling;

[0035] Step 2. Place the solid mater...

Embodiment 2

[0040] The present embodiment catalyst comprises activated carbon carrier, and the Pd, Ru and Ag loaded on the activated carbon carrier; The mass percentage of Pd in ​​the described catalyst is 0.9%, the mass percentage of Ru is 0.3%, and the mass percentage of Ag is 1.1%; the average particle diameter of the activated carbon carrier is 2.0mm, and the specific surface area is 1450m 2 / g.

[0041] The preparation method of present embodiment catalyst comprises the following steps:

[0042] Step 1, the palladium chloride that will contain 0.9g palladium is dissolved in the nitric acid of 0.8% by mass percent concentration, the ruthenium chloride that will contain 0.3g ruthenium is dissolved in the nitric acid of 0.8% by mass percent concentration, then the two are mixed Uniformly obtain solution A, immerse 97.7g of activated carbon carrier in it, ultrasonically treat for 3 hours at a temperature of 68°C, and filter to obtain solid material A after natural cooling;

[0043] Ste...

Embodiment 3

[0048] The present embodiment catalyst comprises activated carbon carrier, and Pd, Sn and Ce loaded on the activated carbon carrier; The mass percentage of Pd in ​​the described catalyst is 0.3%, the mass percentage of Sn is 0.1%, and the mass percentage of Ce is 0.5%; the average particle diameter of the activated carbon carrier is 1.5mm, and the specific surface area is 1050m 2 / g.

[0049] The preparation method of present embodiment catalyst comprises the following steps:

[0050] Step 1, the palladium chloride that will contain 0.3g palladium is dissolved in the nitric acid of 1% in mass percentage concentration, and the tin protochloride that will contain 0.1g tin is dissolved in the nitric acid of 1.5% in mass percentage concentration, then both Mix evenly to obtain solution A, immerse 99.1g of activated carbon carrier in it, ultrasonically treat for 3 hours at a temperature of 70°C, and filter to obtain solid material A after natural cooling;

[0051] Step 2. Place t...

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Abstract

The invention discloses a catalyst for degrading hydrogen peroxide. The catalyst comprises an activated carbon carrier, Pd, metal M1 and metal M2, wherein the Pd, the metal M1 and the metal M2 are loaded on the carbon carrier; the mass percentage content of the Pd in the catalyst is 0.3-1.5 percent, the mass percentage content of the metal M1 is 0.1-1 percent, and the mass percentage content of the metal M2 is 0.05-2 percent; the metal M1 is Pt, Ru or Sn; the metal M2 is K, Ag or Ce. In addition, the invention further discloses a preparation method of the catalyst and a method for catalyzing, hydrogenating and degrading the hydrogen peroxide by applying the catalyst. The catalyst disclosed by the invention has very high catalytic activity and stability and can safely and efficiently catalyze and degrade the hydrogen peroxide in a solvent, so that the hydrogen peroxide is converted into water and does not generate oxygen; the degradation rate of the hydrogen peroxide is larger than 99.5 percent. The catalyst disclosed by the invention has an important safety guarantee effect on chemical industrial solvent recycling and is very wide in market application prospect.

Description

technical field [0001] The invention belongs to the technical field of catalytic degradation technology, and in particular relates to a catalyst for degrading hydrogen peroxide and its preparation method and application. Background technique [0002] Hydrogen peroxide-based propylene oxide process (HPPO process) is an advanced technology that has just begun to be industrialized in recent years. This process is an environmentally friendly and clean production process. It has advantages in market, economy, and ecological environment. It will surely replace the domestic still Chlorohydrin method propylene oxide process that is widely used, seriously pollutes the environment, and has backward technology. However, a large amount of hydrogen peroxide must be used in the HPPO process, and the methanol solvent needs to be recovered and recycled. The residual hydrogen peroxide in the solvent recovery process will decompose and generate oxygen, which will gradually accumulate, posing ...

Claims

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Application Information

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IPC IPC(8): B01J23/58B01J23/50B01J23/63A62D3/37A62D101/47
Inventor 万克柔程杰林涛曾永康曾利辉高武张之翔
Owner XIAN CATALYST NEW MATERIALS CO LTD
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