P-methylsulfonyltoluene preparation method and equipment
A technology of p-methylsulfonyl and p-toluenesulfonyl chloride, applied in the field of pesticides, can solve the problems of large number of equipment, small output per unit time, long reaction time and the like
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Embodiment 1
[0031] A preparation method of p-thymphenyltoluene, 70g of sodium sulfite, 90g of sodium bicarbonate, and 250g of water are prepared into an aqueous solution, and 90g of p-toluenesulfonyl chloride is heated up to 70°C, and the above-mentioned aqueous solution and the heated p-toluenesulfonyl chloride are continuously added The first-stage pipeline reactor was reacted for 1.5 hours; 70g of sodium chloroacetate was dissolved in 45g of water to prepare an aqueous solution; the material after the reaction of the sodium chloroacetate aqueous solution and the first-level pipeline reactor was continuously put into the second-level pipeline reactor, at 90°C React for 5 hours. After the reaction is completed, gas-liquid separation is carried out. Hydrochloric acid is added to the liquid to adjust the pH value to 7.5. After the reaction is completed, it is cooled to room temperature, filtered with suction, washed with water, drained, and dried to obtain a white solid which is p-thiampheni...
Embodiment 2
[0033] A preparation method of p-thymphenyl toluene, 90g of sodium sulfite, 60g of sodium bicarbonate, and 350g of water are formulated into an aqueous solution, 100g of p-toluenesulfonyl chloride is heated up to 90°C, and the above-mentioned aqueous solution and the heated p-toluenesulfonyl chloride are continuously added The primary reactor was reacted for 4 hours; 80g of sodium chloroacetate was dissolved in 60g of water to prepare an aqueous solution; the material after the reaction between the aqueous solution of sodium chloroacetate and the primary reactor was continuously put into the secondary reactor, and reacted at 100°C for 5 hours. After the reaction is completed, gas-liquid separation is carried out, and hydrochloric acid is added to the liquid to adjust the pH value to 7. After the reaction is completed, it is cooled to room temperature, filtered with suction, washed with water, and dried by suction, and dried to obtain a white solid which is p-thiamphenicol toluen...
Embodiment 3
[0035] A preparation method of p-thymphenyltoluene, 80g of sodium sulfite, 75g of sodium bicarbonate, and 300g of water are formulated into an aqueous solution, and 97g of p-toluenesulfonyl chloride is heated up to 75°C, and the above-mentioned aqueous solution and the heated p-toluenesulfonyl chloride are continuously added The primary reactor was reacted for 2 hours; 78g of sodium chloroacetate was dissolved in 50g of water to prepare an aqueous solution; the material after the reaction between the aqueous solution of sodium chloroacetate and the primary reactor was continuously put into the secondary reactor, and reacted at 95°C for 5.5 hours After the reaction is completed, gas-liquid separation is carried out, and hydrochloric acid is added to the liquid to adjust the pH value to 8. After the reaction is completed, it is cooled to room temperature, filtered with suction, washed with water, and dried by suction, and dried to obtain a white solid which is p-thiamphenicol tolu...
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