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[Chemical Knowledge]：Production method and process flow of tert-butyl peroxybenzoate

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of the manufacturing method
of tert-butyl peroxybenzoate tert-butyl peroxybenzoate (TBPB) is an important organic peroxy compound, which is widely used in polymer synthesis, initiator, oxidant and other chemical production fields. This article will introduce the manufacturing method of tert-butyl peroxide benzoate, including raw material preparation, reaction steps, post-treatment and product quality control.

1. raw material preparation

1. Benzoic acid: Benzoic acid is the main raw material for the preparation of tert-butyl peroxybenzoate. Benzoic acid with high purity and stable quality should be selected.
2. tert-butyl alcohol: tert-butyl alcohol as another raw material of tert-butyl peroxide benzoate, should also choose high purity industrial products.
3. Hydrogen Peroxide: Hydrogen peroxide is an oxidizing agent used to oxidize benzoic acid and tert-butyl alcohol to form tert-butyl peroxybenzoate.

2. Reaction Step

1. Benzoic acid and tert-butyl alcohol are added into a reaction kettle at a molar ratio of 1:1, an appropriate amount of solvent (such as toluene) is added, and the mixture is heated and stirred until dissolved.
2. Hydrogen peroxide is slowly added dropwise under stirring, and the dropping rate is controlled to keep the reaction temperature within a suitable range.
3. Continue to stir the reaction for a certain period of time to fully generate tert-butyl peroxybenzoate.
4. After completion of the reaction, the reaction solution was cooled to room temperature and post-treated.

3. Post-treatment

1. the reaction solution was poured into a separatory funnel and washed with water several times to remove unreacted raw materials and by-products.
2. The organic phase was dried over anhydrous sodium sulfate and filtered to remove the drying agent.
3. The tert-butyl peroxybenzoate is separated from the solvent by distillation or rectification to obtain the pure product.

4. product quality control

1 by gas chromatography, mass spectrometry and other analytical methods, the purity of tert-butyl peroxybenzoate, impurity content, etc. to ensure that the product quality meets the standard.
2. The stability of the product, active oxygen content and other performance indicators to test to meet the requirements of different applications.
Precautions for
5.

1. The reaction temperature should be strictly controlled during the operation to avoid too high or too low temperature affecting product quality and yield.
2. When adding hydrogen peroxide, it should be carried out slowly to avoid local overheating caused by too fast addition and safety accidents.
3. In the post-treatment process, it should be ensured that the washing, drying and other steps are fully effective to ensure product quality.
4. Waste water and waste gas generated in the production process should be effectively treated to meet environmental protection requirements.

summary: The manufacturing method of

tert-butyl peroxybenzoate involves raw material preparation, reaction steps, post-treatment and product quality control. In order to ensure the quality and yield of the product, attention should be paid to controlling the reaction temperature, the speed of dropping hydrogen peroxide, the effect of post-treatment and environmental protection requirements during the operation. Through reasonable process design and operation, the standard tert-butyl peroxybenzoate can be produced, which can provide high-quality raw materials for the production of chemical products.

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