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Method for preparing benzoyl peroxide

A technology for benzoyl peroxide and benzoyl peroxide first product, which is applied in the field of preparation of benzoyl peroxide, can solve the problems of difficult to achieve safe production, large floor space, difficult temperature control, etc., and achieves increased output and quality, reduce strength, reduce the effect of production risk

Active Publication Date: 2011-09-28
江苏强盛功能化学股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But point out in " the preparation method discussion of benzoyl peroxide " that " application chemical industry " 2002 volume 31, the 6th phase 1-2 pages publishes " the preparation method of benzoyl peroxide " article point out that the required equipment of this technique is many, and floor area is big, still It is still in the stage of experimental research and needs to be further improved; at the same time, based on the analysis of the basic principles of chemical reactions and chemical processes, although the use of a unique injector to achieve a mist reaction greatly increases the contact of the reaction material, it is still far from the molecular level In addition, the formed fine powder product is also very difficult in subsequent processing, and whether it is microscopic or macroscopic, the problem of heat transfer makes peroxide production must pay close attention to temperature control become very difficult, so that safe production is difficult to realize, so there is no industrial application report until the inventor applies

Method used

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  • Method for preparing benzoyl peroxide
  • Method for preparing benzoyl peroxide
  • Method for preparing benzoyl peroxide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] please see figure 1 and figure 2 .

[0034]A) To prepare the primary product of benzoyl peroxide, prepare the reaction mother liquor before the reaction starts, and pre-fill 31Kg of sodium chloride, 250Kg of water, and 10% sodium hydroxide solution in the first reaction device of 500L 2Kg, mass percentage concentration is 70% hydrogen peroxide 13Kg and the mass percentage concentration is 0.1% surfactant i.e. sodium lauryl sulfate solution 7Kg is mixed with reaction mother liquor, then water, mass percentage concentration is 10% hydrogen Sodium oxide solution, mass percentage concentration are 70% hydrogen peroxide, mass percentage concentration are 0.1% tensio-active agent namely sodium lauryl sulfate solution and the benzoyl chloride of technical grade purity with 70Kg / h, 82.4Kg / h, respectively The flow rate of 10Kg / h, 7Kg / h, 28.8Kg / h is added to the first reaction device, the reaction is stirred by the paddle stirrer of the first reaction device, and the reaction ...

Embodiment 2

[0037] please see figure 1 and figure 2 .

[0038] A) To prepare the primary product of benzoyl peroxide, prepare the reaction mother liquor before the reaction starts, and pre-fill 25Kg of sodium chloride, 250Kg of water, and 20% sodium hydroxide solution in the first reaction device of 500L 22Kg, mass percent concentration is 65% hydrogen peroxide 8Kg, mass percent concentration is 0.1% surfactant i.e. 5Kg of sodium dodecylsulfonate solution is configured as reaction mother liquor, then water, mass percent concentration is 20% by pump Sodium hydroxide solution, mass percentage concentration are 65% hydrogen peroxide, mass percentage concentration are 0.1% tensio-active agent namely sodium dodecylsulfonate solution and the benzoyl chloride of technical grade purity respectively with 105Kg / h, 61.8Kg / The flow rate of h, 10.8Kg / h, 10.5Kg / h, 34.6Kg / h is added to the first reaction device, the paddle stirrer of the first reaction device is used to stir the reaction, and the re...

Embodiment 3

[0041] please see figure 1 and figure 2 .

[0042] A) To prepare the primary product of benzoyl peroxide, prepare the reaction mother liquor before the reaction starts, and pre-fill 22Kg of sodium chloride, 250Kg of water, and 30% sodium hydroxide solution in the first reaction device of 500L 22Kg, mass percent concentration is 50% hydrogen peroxide 6Kg, mass percent concentration is 0.1% surfactant i.e. 4Kg of sodium dodecylbenzene sulfonate solution is configured into reaction mother liquor, then water, mass percent concentration is 30% by pump Sodium hydroxide solution, mass percent concentration is 50% hydrogen peroxide, mass percent concentration is 0.1% surfactant i.e. sodium dodecylbenzenesulfonate solution and benzoyl chloride of industrial grade purity with 140Kg / h, 54.9 The flow rate of Kg / h, 14Kg / h, 14Kg / h, 40.4Kg / h is added to the first reaction device, the paddle stirrer of the first reaction device is used to stir the reaction, and the reaction time is control...

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PUM

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Abstract

The invention relates to a method for preparing benzoyl peroxide, which belongs to the technical field of preparation of organic peroxide. The method comprises the steps of: preparing a benzoyl peroxide crude product; and preparing a benzoyl peroxide finished product as follows: rinsing the benzoyl peroxide crude product, and then performing solid-liquid separation by introducing a solid-liquid separation device to obtain the benzoyl peroxide finished product. The method provided by the invention has the advantages that the industrialized automatic and continuous production requirements are satisfied, the operation intensity of workers is reduced, the hazards in production are reduced, and the production quantity and the quality are improved.

Description

technical field [0001] The invention belongs to the technical field of preparation of organic peroxides, in particular to a preparation method of benzoyl peroxide. Background technique [0002] Benzoyl peroxide is also known as dibenzoyl peroxide, and its English name is: Dibenzoyl peroxide (BPO for short). Its molecular formula is: C 14 h 10 o 4 ; Molecular weight: 242.22; Structural formula: [0003] [0004] BPO is a widely used diacyl organic peroxide, which is white granular and has a slight smell of bitter almonds. It is a strong oxidizing agent. It is mainly used as a polymerization initiator for vinyl monomers and a curing agent for unsaturated resins. It can also be used as a cross-linking agent for silicone rubber and fluororubber, and an anti-oxidation and anti-corrosion additive in the feed industry. In addition, it can also be used as a bleaching agent and oxidizing agent for refining oil, whitening flour, decolorizing fiber, etc. Moreover, in the pharm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C407/00C07C409/34
Inventor 应志耀应立曹俊锋
Owner 江苏强盛功能化学股份有限公司
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