Method for producing H2O2 with Pa catalytic agent in working solution containing three solvents
A technology of H2O2 and working fluid, applied in chemical instruments and methods, inorganic chemistry, non-metallic elements, etc., can solve the problems of low hydrogenation efficiency and low viscosity, and achieve the effect of reducing freight costs
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Embodiment 1
[0015] A Pa catalyst produces H under the working solution composed of three-component solvents 2 o 2 According to the method, the Pa catalyst is added to the fixed-bed reactor, protected with nitrogen, and then the working solution composed of HTA, TOP, AR, according to the volume ratio of HTA, TOP, AR is 10~20:10~20:65~ 75 is added in the described reactor, and the volume sum of HTA, TOP, AR is 100. The hydrogen gas with a purity of 98-99.8% is introduced from the bottom of the reactor, and the hydrogenation reaction is carried out at 60-80 ° C. The hydrogen gas from the top of the reactor is recycled through the hydrogen circulation compressor, and hydrogenated at 8g / L-9g / L The liquid comes out from the bottom of the reactor and is cooled to 40-50°C, and the N is separated under reduced pressure. 2 、CH 4 After waiting for the gas mixture, the hydrogenated liquid enters the tower from the top of the oxidation tower through a pump, and undergoes an oxidation reaction with ...
Embodiment 2
[0019] HTA: TOP: The working solution of AR=14: 16: 70 (V) composition, carries out by embodiment 1 operating steps and method, and its hydrogenation efficiency is 8.4g / l, H 2 o 2 The yield is 20% higher than TOP:AR=25:75 (V), and the product concentration is 50wt%.
Embodiment 3
[0021] HTA: TOP: AR=11: 19: 70 (V) The working solution of composition, carries out by embodiment 1 operating steps and method, and its hydrogenation efficiency is 8.0g / l, H 2 o 2 The yield is 15% higher than TOP:AR=25:75 (V), and the product concentration is 35wt%.
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