78-18-2Relevant articles and documents
Thermal hazard evaluation of cyclohexanone peroxide synthesis
Zang, Na,Qian, Xin-Ming,Liu, Zhen-Yi,Shu, Chi-Min
, p. 1131 - 1139 (2016)
Cyclohexanone peroxide, a crucial organic peroxide used as a curing agent or an initiator in free radical polymerization, is produced through a reaction of cyclohexanone with hydrogen peroxide in the presence of nitric acid as the catalyst. For this study, we used reaction calorimeter, differential scanning calorimetry, and accelerating rate calorimeter to evaluate the thermal hazard characteristics of cyclohexanone peroxide synthesis and the thermal stability of cyclohexanone peroxide. The overall kinetic parameters of the peroxide reaction, which were calculated based on the Levenberg–Marquardt algorithm, were validated using experimental data. By combining the maximum temperature of the synthesis reaction that was corrected by the yield and temperature, at which time to the maximum rate under adiabatic decomposition conditions was equal to 24?h, criticality classes were depicted to assess the cooling failure scenario of the peroxide reaction. This study enhances our understanding of the peroxide reaction and presents safer operating conditions and design protection measures for a safer and greener chemical industry.
Method for preparing ketone peroxide by ferrite compound as catalyst
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Paragraph 0021-0029, (2019/01/21)
The invention discloses a method for preparing ketone peroxide by a ferrite compound as a catalyst. The method comprises that ketone and hydrogen peroxide undergo a reaction in the presence of a ferric oxide as a catalyst and the hydrogen peroxide is finally added when the temperature is raised to the reaction temperature. The ferric oxide replaces a titanium-silicon molecular sieve catalyst so that the cost of the catalyst is significantly reduced and the catalyst is easy to recover. The reaction conditions are low, the reaction conversion rate and selectivity are high under mild reaction conditions, the application range is wide, and the method can be used for production of a variety of ketones and its ketone peroxides and has very good application prospects.
Multi-sulfonic-acid-group acidic functionalized ionic liquid and preparation method thereof
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Paragraph 0067, (2017/01/02)
The invention provides multi-sulfonic-acid-group acidic functionalized ionic liquid, a preparation method thereof and a method of utilizing the ionic liquid to prepare organic peroxide.Each cation of the ionic liquid has two or three alkyl sulfonic acid side chains with 3 or 3 carbon atoms, a matched anion is hydrogen sulfate radical, and the ionic liquid is of an open straight chain structure.The preparation method of the organic peroxide includes: sequentially adding the ionic liquid and hydrogen peroxide into a reaction kettle, fully stirring at room temperature to homogeneous phase, adding cyclohexanone or methyl ethyl ketone, and finishing after reaction at room temperature for 3-8 h; separating a product out of a reaction system obtained through suction filtering or phase separation, sequentially performing water washing or saline washing to obtain water-phase liquid and a crude product, and drying the crude product under vacuum condition to obtain the organic peroxide.The preparation method has the advantages of mild reaction condition, high yield, high product purity and easiness in product separation.
