Treatment method of diacyl peroxide

A treatment method and peroxide technology, which are applied in chemical instruments and methods, preparation of organic compounds, alkali metal chlorides, etc., can solve the problems of changing the molecular structure of BPO, having no practical use value, and being unable to be marketed or applied. Achieve the effect of reducing solid waste generation, good treatment effect and increasing reaction specific surface

Pending Publication Date: 2021-05-28
常熟市滨江化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above three treatment methods can effectively realize the recovery and reuse of slightly polluted BPO, but for BPO that has no use value (decomposition has occurred) or is seriously polluted, the molecular structure of the BPO recovered by the above methods has changed and cannot be sold on the market or application, no practical use value
Patent CN110627630A discloses a treatment method for diacyl peroxide waste, which mixes polluted diacyl peroxide waste with hydrazine hydrate and liquid caustic soda to decompose by oxidation-reduction reaction; Diacyl peroxide waste can be effectively treated, but the raw material (hydrazine hydrate) used is a flammable and explosive strong reducing agent, and the risk is relatively high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048]600kg water, 78kg sodium hydroxide solution (32 wt%), 6 kg of sodium dodecyl amyl sulfonate (2 wt%), 120 kg peroxidation (binated) benzoyl ablation (containing 0.3 kmol peroxidation (b) beyemr Aoy) is added to 1000 L of the reaction kettle, and after mixing, the mass content of the mixture (sodium hydroxide in the mixed material is 3.6%, the mass content of sodium dodecyl benzene sulfonate in the mixture is 0.017%) ;

[0049]When the jacket was warmed, the temperature reached 65 ° C, the resulting dispersion material started to perform an oxidative reaction, and the control reaction temperature was 70 ° C, and the temperature was 5 h, and then the cooling water was opened in the reactor to cool down, cooled to 20 ° C, resulting in product material;

[0050]The product material was sent to the centrifuge for the first separation (the centrifugal rotary speed was 1000 rpm, the centrifugal time was 10 min), and the peroxidation of the insoluble material and the first filtrate, the pero...

Embodiment 2

[0054]600 kg of water, 82 kg of sodium hydroxide solution (32 wt%), 6 kg of sodium dodecylbenzene sulfonate (2 wt%), 120 kg peroxidation (di) benzoylum waste was added to the 1000L reactor, and after mixing, The quality content of the mixture (sodium hydroxide in the mixture is 3.8%, the mass content of sodium dodecylbenzene sulfonate in the mixture is 0.017%);

[0055]When the jacket was warmed, the temperature reached 65 ° C, the resulting dispersion material started to perform an oxidative reaction, the control reaction temperature was 70 ° C, heat preservation of 4 h, then opened the cooling water in the reaction kettle to cool down, cooled to 20 ° C, resulting in product material;

[0056]The product material was sent to the centrifuge for the first separation (the centrifugal rotary speed was 1000 rpm, the centrifugal time was 10 min), and the peroxidation of the insoluble material and the first filtrate, the peroxidation (b) benzoyl content in the insoluble matter was 0%, Completel...

Embodiment 3

[0060]600kg of water, 78kg sodium hydroxide solution (32 wt%), 6 kg of sodium dodecylpylsulfonate (2 wt%), 120 kg peroxidation (di) benzoylum waste was added to 1000L reactor, and after mixing, The quality content of the mixture (sodium hydroxide in the mixture is 3.6%, the mass content of sodium dodecyl benzene sulfonate in the mixture is 0.017%);

[0061]When the jacket was warmed, the temperature was reached at 65 ° C, the obtained dispersion material was redox, and the control reaction temperature was 70 ° C, the temperature was 8 h, and then the cooling water was cooled in the reaction kettle to cool down, cooled to 20 ° C, resulting in product material;

[0062]The product material was sent to the centrifuge for the first separation (the centrifugal rotary speed was 1000 rpm, the centrifugal time was 10 min), and the peroxidation of the insoluble material and the first filtrate, the peroxidation (b) benzoyl content in the insoluble matter was 0%, Completely reactive;

[0063]To the fir...

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Abstract

The invention provides a treatment method of diacyl peroxide, and belongs to the technical field of organic peroxide preparation. Benzoyl peroxide in the benzoyl peroxide waste is treated through the oxidation-reduction reaction of the benzoyl peroxide waste and sodium hydroxide, meanwhile, the dispersion effect of materials in the oxidation-reduction reaction process is enhanced through the surfactant, the reaction specific surface area is increased, the treatment efficiency is improved, the method provided by the invention is beneficial to treatment of (di)benzoyl peroxide which has no utilization value or is seriously polluted, is mild in treatment means, low in risk and good in treatment effect, can obviously reduce the generation of solid wastes and reduce environmental pollution, and is a recycling and harmless treatment mode.

Description

Technical field[0001]The present invention relates to the preparation of organic peroxide, and more particularly to a method of treating a diacyl peroxide.Background technique[0002]Peroxidation (2) benzoyl (BPO) is a diacyl peroxide, is an application most widely used initiator, mainly used as PVC, polyacrylonitrile, acrylate, vinyl acetate solvent polymerization, neoprene Rubber, SBS and methyl methacrylate graft polymerization, unsaturated polyester resin curing, an organic glass adhesive, or the like, a crosslinking agent. A vulcanizing agent for silicone rubber and fluorine rubber in the rubber industry; crosslinking agents can also be used as bleaching agents, oxidants can also be used in chemical production. During the preparation of BPO, there is a case where BPO runs, and is contaminated by mechanical impurities, and the contaminated BPO finished products cannot be sold due to unqualified quality.[0003]Patent CN107033050A discloses a method of treating contaminated BPO, afte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C51/00C07C51/02C07C63/08C07C63/06C01D3/04C01D3/14
CPCC07C51/41C07C51/02C01D3/04C01D3/14C07C63/08C07C63/06
Inventor 顾屹立陈丹唐明亮
Owner 常熟市滨江化工有限公司
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