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Organic peroxide catalytic oxidation catalyst as well as preparation method and application thereof

An organic peroxide, catalytic oxidation technology, applied in the direction of organic compound/hydride/coordination complex catalyst, catalyst activation/preparation, metal/metal oxide/metal hydroxide catalyst, etc., can solve the problem of less-reported organic Problems such as the carrier of peroxide decomposition and catalyst-related processes, to achieve the effect of simple and easy operation, less economic investment, and realization of recycling.

Active Publication Date: 2019-12-24
WANHUA CHEM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The choice of support directly affects the treatment efficiency of catalytic oxidation, but there are few reports on the related processes of support and catalyst for the decomposition of organic peroxides.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Example 1: Preparation of Ultrasonic Modified Fly Ash, Coagulation Sediment and Anaerobic Granular Sludge

[0051] Take 20g of fly ash, coagulation sediment and anaerobic granular sludge mixed according to 1:1:3, put it in 200mL pure water, then slowly pour it into the ultrasonic instrument, select ultrasonic modified ultrasonic The power is 100W, the ultrasonic frequency is 50HZ, and the ultrasonic time is 50min. After the reaction, it is washed with pure water and dried at 105°C to obtain an ultrasonically modified carrier.

Embodiment 2

[0052] Embodiment 2: the preparation of 0# catalyst

[0053] Take 20g of fly ash, coagulation sediment and anaerobic granular sludge mixed according to 1:1:3, put it in the dipping bottle, and carry out vacuum pretreatment. The vacuum pretreatment time is 20min, and the vacuum degree is 96.0KPa; At the same time, take 6.0 mL of ferric nitrate aqueous solution containing 0.10 g / mL of iron, 2.7 mL of ruthenium nitrate aqueous solution containing 0.15 g / mL of ruthenium, and 3.0 mL of manganese nitrate aqueous solution containing 0.10 g / mL of manganese, and add them to ethanol with an ethanol concentration of 10 wt%. In the aqueous solution, prepare an impregnation solution with a total volume of 16.4mL. Add the above impregnation solution into the vacuum impregnation bottle containing the above fly ash, coagulation sediment and anaerobic granular sludge carrier and mix evenly. After impregnation for 60 minutes, take it out and dry it in an oven at 120°C for 3 hours, and then plac...

Embodiment 3

[0055] Embodiment 3: the preparation of 1# catalyst

[0056] Get the fly ash, coagulation sediment and anaerobic granular sludge mixed solid 20g after ultrasonic in embodiment 1 and place in the dipping bottle, carry out vacuum pretreatment, vacuum pretreatment time is 20min, and vacuum degree is 96.0Kpa; Simultaneously Take 6.0 mL of ferric nitrate aqueous solution containing 0.10 g / mL of iron, 2.7 mL of ruthenium nitrate aqueous solution containing 0.15 g / mL of ruthenium, and 3.0 mL of manganese nitrate aqueous solution containing 0.10 g / mL of manganese, and add to the ethanol aqueous solution whose ethanol concentration is 10wt%. , and prepare an impregnation solution with a total volume of 16.4mL. Add the above impregnation solution into the vacuum impregnation bottle containing the above fly ash, coagulation sediment and anaerobic granular sludge carrier and mix evenly. After impregnation for 60 minutes, take it out and dry it in an oven at 120°C for 3 hours, and then pla...

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Abstract

The invention discloses a catalyst for catalytic oxidation of organic peroxides, a preparation method of the catalyst, and a method for treating peroxide-containing wastewater by using the catalyst. Acarrier of the catalyst is a mixture of fly ash, coagulated precipitate and anaerobic granular sludge, preferably a mixture of fly ash, coagulated precipitate and anaerobic granular sludge which aresubjected to ultrasonic and ultraviolet modification; the active components comprise iron, ruthenium and manganese which exist in an oxide form. The fly ash is a main solid waste discharged from a coal-fired power plant, and the coagulated precipitate and the anaerobic granular sludge are from byproducts of wastewater treatment. The catalyst has a good treatment effect on wastewater containing organic peroxide, can effectively reduce the peroxide concentration and COD value in the wastewater, and improves the biodegradability of the wastewater.

Description

technical field [0001] The invention relates to the technical field of chemical engineering and environmental engineering wastewater treatment, and more specifically relates to a catalyst for catalytic oxidation of peroxides, a preparation method of the catalyst and a treatment method for wastewater containing peroxides. For example, it is used to treat peroxide-containing wastewater generated in the production of propylene oxide / styrene. Background technique [0002] The propylene oxide method is a very important method for preparing propylene oxide and styrene monomers. The basic patent describing this method is US3351635. The basic flow of the method is that in the peroxidation stage, air is used as an oxidant to oxidize ethylbenzene to ethylbenzene peroxide, which reacts with propylene in the epoxidation stage to generate propylene oxide and phenylethyl alcohol, and then, phenylethyl alcohol is dehydrated This produces styrene. [0003] During the implementation of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/89B01J31/06B01J37/02B01J37/08B01J37/34C02F1/72
CPCB01J23/8986B01J37/343B01J31/069B01J37/0201B01J37/082C02F1/725
Inventor 曾凡雪刘小高范珍龙赵文凯杜永顺王俊俊张宏科华卫琦
Owner WANHUA CHEM GRP CO LTD
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