Preparation method of pandermite ethyl oleate compound modified bentonite
A composite modification and ethyl oleate technology, which is applied in the field of modification of bentonite, can solve the problem that the adsorption capacity of pollutants needs to be improved, and achieve the effects of improving adsorption effect, great application prospect, good adsorption performance and regeneration.
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Embodiment 1
[0014] A preparation method of white boron calcium petroleum ethyl ester composite modified bentonite, comprising the steps of:
[0015] (1) Ingredients: Take by weighing 160g of leucumite, 600g of ethyl oleate, and 900g of bentonite respectively;
[0016] (2) Mixing materials: mix bentonite and leucumite evenly, then add ethyl oleate and stir evenly;
[0017] (3) Reaction: Pour the mixed material into a high-temperature and high-pressure reactor, fill the reactor with inert gas and exhaust the air, adjust the pressure in the reactor to 3.2Mpa, and the temperature to 230°C, and place the reactor in an ultrasonic field. The frequency of the ultrasonic field is 32KHz, and the power density is 0.48w / cm 2 ;
[0018] (4) Drying: After reacting for 20mim, cool naturally to 75°C, pour the material out of the reaction kettle and spread it into an oven at 75°C, so that the unreacted ethyl oleate is volatilized, and then grind to a particle size smaller than 100 microns, that is.
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Embodiment 2
[0024] A preparation method of white boron calcium petroleum ethyl ester composite modified bentonite, comprising the steps of:
[0025] (1) Batching: the ratio by weight is boronite: ethyl oleate: bentonite=5:25:40 and take each component for subsequent use;
[0026] (2) Mixing materials: mix bentonite and leucumite evenly, then add ethyl oleate and stir evenly;
[0027] (3) Reaction: Pour the mixed material into a high-temperature and high-pressure reactor, fill the reactor with inert gas to exhaust the air, adjust the pressure in the reactor to 3Mpa, and the temperature to 220°C, and place the reactor in an ultrasonic field. The frequency of the field is 30KHz and the power density is 0.45w / cm 2 ;
[0028] (4) Drying: After reacting for 15 min, cool naturally to 70°C, pour the material out of the reaction kettle and spread it into an oven at 70°C, so that the unreacted ethyl oleate is volatilized, and the product is obtained.
Embodiment 3
[0030] A preparation method of white boron calcium petroleum ethyl ester composite modified bentonite, comprising the steps of:
[0031] (1) Batching: the ratio by weight is boronite: ethyl oleate: bentonite=10:35:50 and take each component for subsequent use;
[0032] (2) Mixing materials: mix bentonite and leucumite evenly, then add ethyl oleate and stir evenly;
[0033] (3) Reaction: Pour the mixture into a high-temperature and high-pressure reactor, fill the reactor with inert gas and exhaust the air, adjust the pressure in the reactor to 3.5Mpa, and the temperature to 240°C, and place the reactor in an ultrasonic field. The frequency of the ultrasonic field is 35KHz, and the power density is 0.5w / cm 2 ;
[0034] (4) Drying: After reacting for 30mim, cool naturally to 80°C, pour the material out of the reaction kettle and spread it into an oven at 80°C, so that the unreacted ethyl oleate is volatilized, and the product is obtained.
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