Device for synthesizing tricyclodecenyl propionate by adopting loaded solid acid catalyst
A technology of tricyclodecenyl propionate and solid acid catalyst, which is applied in the field of devices for synthesizing tricyclodecenyl propionate fragrance with a supported solid acid catalyst, and can solve complex post-treatment processes, uncoordinated proportions, environmental pollution, etc. question
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Embodiment 1
[0027]a) Pump the material in the dicyclopentadiene insulation tank 1 into the dicyclopentadiene high-level tank 2, and add dicyclopentadiene from the dicyclopentadiene high-level tank 2 to the 500 L esterification reactor 5 Pentadiene 260 kg, add propionic anhydride 2.5 kg from propionic anhydride header tank 3 to esterification reactor 5, after the feed finishes, add propionic acid 140 kg from propionic acid header tank 4, from esterification reactor 5 hand holes 52 Add 2 kg of phosphotungstic acid loaded on zeolite catalyst, and start the mixer 53 to mix evenly.
[0028] b) Open the steam valve to raise the temperature of the esterification reaction kettle 5, and control the reaction temperature to 95~98°C.
[0029] c) After 4 hours of reaction, take samples for gas chromatography detection, and then take samples for detection at intervals of 2 hours. When the dicyclopentadiene content is less than 2%, maintain the temperature and continue the reaction for 2 hours, then coo...
Embodiment 2
[0038] a) Add 1300 kg of dicyclopentadiene and 13 kg of propionic anhydride to the 2500 L esterification reactor 5. After the feeding is completed, add 700 kg of propionic acid from the propionic acid head tank 4, and add 700 kg of propionic acid from the esterification reactor 5 Add catalyst zeolite-loaded phosphotungstic acid 8 kg into hole 52, start the mixer and mix evenly;
[0039] b) Open the steam valve, heat up the esterification reaction kettle 5, and control the reaction temperature to 95-100°C;
[0040] c) After 4 hours of reaction time, take samples for gas chromatography detection, and then take samples for detection at intervals of 2 hours. When the dicyclopentadiene content is less than 2%, maintain the temperature and continue the reaction for 2 hours, then cool down to terminate the reaction, and add 30 kg of clear water, continue to stir, and propionic anhydride is hydrolyzed into propionic acid;
[0041] d) The reaction solution in step c) is sent to the pr...
Embodiment 3
[0048] a) Add 260 kg of dicyclopentadiene and 3 kg of propionic anhydride to the esterification reactor 5. After the feeding is completed, add 130 kg of propionic acid from the propionic acid head tank 4, and add it from the hand hole 52 of the esterification reactor 5 Catalyst zeolite loaded phosphotungstic acid 1.5 kg, turn on the mixer 53 and mix evenly;
[0049] b) Open the steam valve, heat up the esterification reaction kettle 5, and control the reaction temperature to 98~100°C;
[0050] c) After 4 hours of reaction time, take samples for gas chromatography detection, and then take samples for detection at intervals of 2 hours. When the dicyclopentadiene content is less than 2%, maintain the temperature and continue the reaction for 2 hours, then cool down to terminate the reaction, and add 6 kg of clear water, continue to stir, and propionic anhydride is hydrolyzed into propionic acid;
[0051] d) The reaction solution in step c) is sent to the precision filter 7 for f...
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