Preparation method for vulcanized alkylphenol
A technology for sulfurizing alkylphenols and alkylphenols, which is applied in the petroleum industry, additives, lubricating compositions, etc., can solve problems that affect product performance and have not been solved well, and achieve excellent oxidation resistance
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Embodiment 1
[0041] Embodiment 1 (adopt methanol solution to process three times, adopt two kinds of demulsifiers at every turn)
[0042]Add 100 grams of dodecylphenol and 75 grams of 150SN into a three-necked flask equipped with electric stirring, and stir for 15 minutes after adding, then add 4 grams of 20% ammonia solution and 10 grams of sulfur powder, and heat up to 150°C after adding , react at constant temperature for 5 hours, after the reaction, cool down to 35°C, then add 200 grams of 35% methanol aqueous solution, mix and stir for 30 minutes, at this time the solution is partially emulsified, and the emulsified layer accounts for about 6% of the water layer, add T1001 and T901, its addition amount is 120ppm of the total mass of dodecylphenol, the mass ratio between the two is 1:1, the emulsified layer does not completely disappear after standing, and about 2% of the water phase volume is the emulsified layer, and the water is separated Layer and emulsification layer, add 200 gram...
Embodiment 2
[0043] Embodiment 2 (using methanol solution to process three times, each adopting three kinds of demulsifiers)
[0044] Add 100 grams of dodecylphenol and 75 grams of 150SN into a three-necked flask equipped with electric stirring, and stir for 15 minutes after adding, then add 4 grams of 20% ammonia solution and 10 grams of sulfur powder, and heat up to 150°C after adding , react at constant temperature for 5 hours, cool down to 35°C after the reaction, then add 200 grams of 40% methanol aqueous solution, mix and stir for 30 minutes at 30-35°C, at this time, the solution is partially emulsified, and the emulsified layer accounts for about 6% of the water layer. %, add the mixture of T1001, T901 and polyisobutylene 1, the addition amount is 140ppm of the total mass of dodecylphenol, the mass ratio between T1001 and T901, polyisobutylene in the demulsifier mixture is 1:1:1, static The emulsified layer is almost invisible after putting it on. After separating the water layer, a...
Embodiment 3
[0045] Embodiment 3 (using methanol solution to process three times, each adopting three kinds of demulsifiers)
[0046] Add 100 grams of nonylphenol and 73 grams of 150SN into a three-necked flask equipped with electric stirring, stir for 15 minutes after adding, then add 2.6 grams of 20% sodium hydroxide solution, 9.6 grams of sulfur powder, and heat up to 145 ° C after adding, React at constant temperature for 5 hours. At this time, hydrogen sulfide gas is released from the three-necked bottle, absorb hydrogen sulfide gas with 20% potassium hydroxide solution, cool down to 30°C after reaction, then add 190 grams of 35% methanol aqueous solution, Mix and stir for 30 minutes. After standing, the solution has partial emulsification. The emulsified layer is 4% of the water layer. Add the demulsifier mixture of KR-12, T901 and polyisobutylene 2, and its addition is 1% of the total mass of dodecylphenol 140ppm, wherein the mass ratio between KR-12, T901, and polyisobutylene 2 is ...
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