Loading system and method for treating styrene epoxidation reaction liquid
A technology of epoxidation reaction and styrene, which is applied in the direction of organic chemistry, can solve problems such as poor safety, and achieve the effects of extended replacement cycle, improved safety, and long service life
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Embodiment 1
[0046] Preparation of catalyst quenching and peroxide-treated solid materials: catalyst quenching factor KF, content 1%; peroxide treatment factor N,N-copper dimethyldithiocarbamate, content 1%.
[0047] 1) Preparation of catalyst quenching factor modified molecular sieve C / MCM-41
[0048] Take a certain amount of anhydrous sodium metasilicate 407g, disperse it in 2035mL deionized water, adjust pH=14 with ammonia water (25%) solution, stir the formed gel at room temperature for 1 hour, and then add 20% sixteen 485 g of an aqueous solution of alkyltrimethylammonium bromide was prepared as a mother liquor, and the mother liquor was stirred at 80° C. for 1 h. Then add 2g of KF, put into a PTFE-lined stainless steel autoclave, carry out hydrothermal synthesis reaction at 120°C, after 48h, take out the autoclave, the obtained solid product is filtered, washed and dried, and protected under a nitrogen atmosphere It was dried in an oven at 100°C for 24h under certain conditions, and...
Embodiment 2
[0052] Catalyst Quenching and Preparation of Peroxide-Treated Solid Materials: Catalyst Quenching Factors
[0053] NaOH, content 2%; peroxide treatment factor cobalt acetate, content 2%.
[0054] 1) Preparation of catalyst quenching factor modified molecular sieve C / MCM-41
[0055] Take a certain amount of silicon dioxide 200g, disperse it in 1000mL deionized water, adjust the pH=13 with ammonia water (25%) solution, stir the formed gel at room temperature for 1h, then add 20% cetyl tris 267 g of an aqueous solution of methyl ammonium chloride was prepared as a mother liquor, and the mother liquor was stirred at 50° C. for 1 hour. Then add 4g of NaOH, and carry out the hydrothermal synthesis reaction at 150°C in a stainless steel autoclave lined with PTFE. After 10 hours, take out the autoclave, and the obtained solid product is filtered, washed and dried, and protected in a nitrogen atmosphere. It was dried in an oven at 120°C for 8 hours under certain conditions, and then ...
Embodiment 3
[0059] Catalyst Quenching and Preparation of Peroxide-Treated Solid Materials: Catalyst Quenching Factors
[0060] KOH, content 5%; peroxide treatment factor chromium acetate, content 10%.
[0061] 1) Preparation of catalyst quenching factor modified molecular sieve C / MCM-41
[0062] Take a certain amount of sodium silicate 950g, disperse it in 4750mL deionized water, adjust the pH=10 with ammonia water (25%) solution, stir the formed gel at room temperature for 1h, then add 20% octadecyltri 58 g of an aqueous solution of methyl ammonium chloride was prepared as a mother liquor, and the mother liquor was stirred at 40° C. for 5 hours. Then add 10g KOH, put into a stainless steel autoclave lined with PTFE, carry out hydrothermal synthesis reaction at 200 ° C, after 4 hours, take out the autoclave, the obtained solid product is filtered, washed and dried, and protected in a nitrogen atmosphere It was dried in an oven at 150°C for 4 hours under certain conditions, and then calc...
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