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Catalyst for decomposing hydrogen peroxide and application method

A technology of hydrogen peroxide and catalyst, applied in the application field of decomposition of hydrogen peroxide, can solve the problem that there is no public report on the direct decomposition of hydrogen peroxide, and achieve the effect of eliminating potential harm and improving safety

Active Publication Date: 2016-11-23
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In summary, there have been no published reports on the direct decomposition of hydrogen peroxide in epoxidation reaction products comprising alkenes, alkylene oxides, reaction solvents, water, and epoxidation reaction by-products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0016] The preparation method of the hydrogen peroxide decomposition catalyst comprises: 1) fully kneading the IIIA group metal oxide or hydroxide, acidic aluminum sol, organic extrusion aid, organic porogen and ointment into a wet plastic body, and then extruding into wet strips; 2) drying and roasting the wet strips to obtain catalyst supports; 3) impregnating catalyst supports with Group VIB metal salt solutions and IVB metal salt solutions, drying and roasting to obtain catalyst supports .

[0017] The metal oxide of group IIIA is aluminum oxide, and the metal hydroxide is aluminum hydroxide.

[0018] In step 1) of the preparation method of the catalyst, the mass ratio of the amount of the Group IIIA metal oxide or hydroxide, acidic aluminum sol, organic extrusion aid, organic porogen and paste forming agent is 100:( 50-200):(1-100):(1-25):(1-60).

[0019] In step 2) of the preparation method of the catalyst, the drying temperature is 0-120°C, and the drying time is 1-48...

Embodiment 1

[0038] 300.00 grams of aluminum hydroxide powder (68.2% aluminum oxide content, produced by Shandong Zibo Taiguang Chemical Co., Ltd.), 75.00 grams of starch (analytical reagent), 15.00 grams of Sesame powder (produced by Henan Lankao Vegetable Gum Factory), 415.0 grams of oxidation Aluminum content is 22.4% aluminum sol (produced by Hunan Jianchang Petrochemical Co., Ltd.), 25.00 grams of octylphenol polyoxyethylene (15) ether (OP-15, produced by Hebei Xingtai Kewang Chemical Auxiliary Co., Ltd.) and 60.00 Gram nitric acid content is that the dilute nitric acid of 3.0 mass % is fully kneaded in the multifunctional catalyst molding machine (South China University of Technology Industrial General Factory production) and obtains the wet plastomer, then extrusion molding is the solid cylindrical strip of φ 1.2mm, at 20 After drying at -25°C for 24 hours, put it into a box-type resistance furnace, heat it from 20°C at a rate of 3°C / min to 120°C and stay there for 3 hours, then heat...

Embodiment 2

[0040] With 317.80 grams of aluminum hydroxide powder (74.2% of aluminum oxide content, produced by Taiguang Chemical Co., Ltd., Zibo, Shandong), 7.50 grams of Sesame powder (produced by Henan Lankao Vegetable Glue Factory), 334.82 grams of aluminum oxide content is 22.4% aluminum sol ( Hunan Jianchang Petrochemical Co., Ltd.), 15.00 grams of octylphenol polyoxyethylene (15) ether (OP-15, produced by Hebei Xingtai Kewang Chemical Auxiliary Co., Ltd.) and 75.00 grams of deionized water in the multifunctional catalyst molding Machine (produced by South China University of Science and Technology Industrial Factory) to fully knead the wet plastic body, and then extruded into a solid cylindrical strip of φ1.2mm, dried at 15°C for 18 hours and then placed in a box-type resistance furnace. Heating from 20°C to 120°C at a heating rate of 5°C / min and staying for 5 hours, then heating to 550°C at a heating rate of 3°C / min and staying for 15 hours, and obtaining cylindrical catalyst carri...

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PUM

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Abstract

The invention provides a catalyst for decomposing hydrogen peroxide. The catalyst for decomposing hydrogen peroxide is characterized by being prepared from, by mass, 1%-30% of VI B-group metal oxide, 1%-20% of IV B-group metal oxide and 50%-98% of III A-group metal oxide. According to a method for decomposing hydrogen peroxide in a product of an epoxidation reaction of 3-chloropropene and hydrogen peroxide by adopting the catalyst, most residual hydrogen peroxide in the product of the reaction can be decomposed before distillation separation, potential hazards of the high hydrogen peroxide content in the product of the epoxidation reaction to the follow-up distillation separation process are effectively eliminated, and therefore the safety of producing epoxy chloropropane through the epoxidation reaction of 3-chloropropene and hydrogen peroxide is improved.

Description

technical field [0001] The present invention relates to a hydrogen peroxide decomposition catalyst and its application, more specifically to a hydrogen peroxide decomposition catalyst and the application of the catalyst to the decomposition of hydrogen peroxide in the epoxidation reaction product of 3-chloropropene and hydrogen peroxide . Background technique [0002] Hydrogen peroxide is a green oxidizing agent, as disclosed in USP4,833,260, in the presence of titanium-silicon molecular sieve catalyst and solvent methanol, through the epoxidation reaction of 3-chloropropene and hydrogen peroxide, the ring can be efficiently and cleanly synthesized Oxychloropropane. Epichlorohydrin is an important basic organic chemical raw material and intermediate, widely used in the synthesis of various industrial products such as epoxy resin, chlorohydrin rubber, pharmaceuticals, pesticides, surfactants and plasticizers. [0003] CN101747296A and CN101747297A further disclose the metho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/28C07D301/32C07D303/08
Inventor 张永强刘易杜泽学
Owner CHINA PETROLEUM & CHEM CORP
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