A polyalphaolefin highly miscible with ester oil and its preparation method and application
A technology of polyalphaolefin and ester oil, applied in the field of polyalphaolefin, can solve the problems of increased cost, poor mutual solubility at low temperature, etc., and achieve the effects of improving performance, improving mutual solubility, and convenient blending
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Embodiment 1
[0020] Example 1 A polyalphaolefin highly miscible with ester oil
[0021] (1) C8 alpha linear olefins containing internal olefins
[0022] 1) Catalyst: Take zinc oxide, add about 5% of its mass of silicon oxide as cement, add water and mix evenly, extrude on an extruder, and the shape is not limited. After drying at 130°C for 4 hours, put it into a muffle furnace, bake at 500°C for 4 hours, pulverize the baked catalyst, and sieve to obtain catalyst particles with a particle size of 2-3 mm for use.
[0023] 2) Using n-octanol as the raw material, put the catalyst into the reactor to obtain a catalyst fixed bed, and heat the reactor with the catalyst fixed bed to 160°C under vacuum conditions (vacuum degree 0.1-0.15PA), and the raw material flow The flow rate through the reactor is: the weight hourly space velocity is 0.7% / hour, carry out the dehydration reaction, collect the effluent, let it stand for stratification, discard the water layer, and dry to obtain C8 alpha linear ...
Embodiment 2
[0050] Example 2 A polyalphaolefin highly miscible with ester oil
[0051] (1) C10 alpha linear olefins containing internal olefins
[0052] 1) Catalyst: Mix lanthanum oxide and cadmium oxide at a weight ratio of 1:9, add about 5% of the total mass of silicon oxide as a cement, add water and mix evenly, and extrude on an extruder, with any shape. After drying at 130°C for 4 hours, put it into a muffle furnace, bake at 500°C for 4 hours, pulverize the baked catalyst, and sieve to obtain catalyst particles with a particle size of 2-3 mm for use.
[0053] 2) Using 1-decanol as the raw material, put the catalyst into the reactor to obtain a catalyst fixed bed, and heat the reactor with the catalyst fixed bed to 170°C under vacuum conditions (vacuum degree 0.1-0.15PA), and the raw material The flow rate flowing through the reactor is: the weight hourly space velocity is 1% / hour, carry out the dehydration reaction, collect the effluent, let it stand for stratification, discard the wa...
Embodiment 3
[0078] Embodiment 3 comparative test
[0079] (1) Polyalphaolefin PAO4(1)
[0080] 1) C8 alpha linear olefins containing internal olefins: with n-octanol as raw material, the catalyst (zinc oxide in Example 1) is loaded into the reactor to obtain a catalyst fixed bed, and under vacuum conditions (vacuum degree 0.1-0.15PA ) The reactor with catalyst fixed bed is heated to 130°C, the flow velocity of the raw material flowing through the reactor is: the weight hourly space velocity is 3% / hour, and the dehydration reaction is carried out, the effluent is collected, left to stand for stratification, and the water layer is discarded , and dried to obtain a carbon-eight α-linear olefin containing internal olefins. Analyzed by gas chromatography, among the C8 alpha linear olefins containing internal olefins, the content of alpha olefins is 65%, and the contents of secondary left-handed and right-handed internal olefins are 7% and 28%, respectively, and are ready for use.
[0081] 2)...
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