A kind of synthetic method of polyisobutylene Mannich amine
A technology of polyisobutylene Mannich amine and synthesis method, which is applied in the direction of fuel, liquid carbon-containing fuel, fuel additive, etc., and can solve the problems of prolonging the production process, increasing the number of control parameters, and increasing production costs, etc.
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Embodiment 1
[0026] Mix 300g of n-decane, 141g of baked and melted phenol, 1000g of preheated high-activity polyisobutylene with a weight average molecular weight of 1050, and 7g of boron trifluoride catalyst, stir and heat, the reaction time is 9hr, and the reaction temperature is 80°C. After the reaction, 200 g of n-decane was added to obtain 1006.5 g of polyisobutylene phenol as an alkylation product, and the conversion rate of highly active polyisobutylene was 92%. In this example, the terminal α-methylene content of the highly reactive polyisobutene is 88%.
[0027] Another autoclave was opened, and 204 g of dimethylamine aqueous solution with a mass concentration of 33% was added, and 121 g of a formaldehyde solution with a mass concentration of 37% was added dropwise, and the mixture was kept stirring. After the dropwise addition of the formaldehyde solution is completed, continue to stir for 10 minutes, add the alkylated product, slowly heat up to 100-105°C, and perform Mannich ami...
Embodiment 2
[0030] Mix 500g of solvent oil D40, 141g of baked and melted phenol, 1000g of preheated high-activity polyisobutylene with a weight average molecular weight of 970, and 8g of boron trifluoride catalyst, stir and heat, the reaction time is 15hr, and the reaction temperature is 60°C. After the reaction finishes, add 200g D40 solvent naphtha again. 962.7 g of polyisobutylene phenol was obtained as an alkylation product, and the conversion rate of highly active polyisobutylene was 88%. In this example, the terminal α-methylene content of the highly reactive polyisobutene is 85%. .
[0031] Start another autoclave, add 150g of water, 150g of diethylamine, and dropwise add 162g of 37% formaldehyde solution in mass concentration, and keep stirring. After the dropwise addition of the formaldehyde solution was completed, the stirring was continued for 10 min. Add the alkylated product, slowly heat up to 100-105°C, and carry out Mannich amination reaction for 3 hours. Before the Man...
Embodiment 3
[0034] Mix 100g of sulfonated kerosene, 94g of baked and melted phenol, 1000g of preheated high-activity polyisobutylene with a weight average molecular weight of 956, and 12g of boron trifluoride catalyst, stir and heat, the reaction time is 3hr, and the reaction temperature is 120°C. After the reaction finishes, add 400g sulfonated kerosene again. 1017.4 g of polyisobutylene phenol was obtained as an alkylation product, and the conversion rate of highly active polyisobutylene was 93%. In this example, the terminal α-methylene content of the highly reactive polyisobutene is 88%. .
[0035] Another autoclave was set up, 101g of water and 101g of dipropylamine were added, and 82g of 37% formaldehyde solution with a mass concentration of 82g was added dropwise, and the mixture was kept stirring. The dropwise addition of the formaldehyde solution was completed, and the stirring was continued for 10 min. Add the alkylated product, slowly heat up to 100-105°C, and carry out Mann...
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