Method for continuously preparing bio-based polyol by using micro-channel and multi-stage reaction kettle
A bio-based polyol, multi-stage reaction technology, applied in chemical instruments and methods, preparation of carboxylate, preparation of organic compounds, etc., can solve problems such as high product viscosity, and achieve the effect of solving viscosity problems
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Embodiment 1
[0037] Dissolve 170L epoxy soybean oil in 765L ethyl acetate to obtain raw material A, dissolve 165L 1,2-dimethyl-1,2-cyclohexanediol and 5.97kg fluoroboric acid aqueous solution (40wt%) in 745L ethyl acetate to obtain raw material B, 27L of methanol was dissolved in 123L of ethyl acetate to obtain raw material C. The raw material A and the raw material B are respectively pumped into the first micro-mixer, and after thorough mixing, they are passed into the first micro-reactor for a ring-opening reaction to obtain a reaction effluent containing vegetable oil polyols. The sampling rate of raw material A is 143.18L / h, the sampling rate of raw material B is 138.84L / h, the reaction volume of the first microreactor is 57L, the reaction temperature is 120°C, and the reaction residence time is 12min. The reaction effluent containing vegetable oil polyol was passed into a 50L three-stage batch reactor for further ring-opening reaction. The reaction temperature of the batch reactor was...
Embodiment 2
[0039] Dissolve 170L epoxy soybean oil in 1360L ethyl acetate to obtain raw material A, dissolve 200L 1,2-dimethyl-1,2-cyclohexanediol and 7.47kg fluoroboric acid aqueous solution (40wt%) in 1600L ethyl acetate to obtain raw material B, 44L of methanol was dissolved in 350L of ethyl acetate to obtain raw material C. The raw material A and the raw material B are respectively pumped into the first micro-mixer, and after thorough mixing, they are passed into the first micro-reactor for a ring-opening reaction to obtain a reaction effluent containing vegetable oil polyols. The sampling rate of raw material A is 129.97L / h, the sampling rate of raw material B is 152.06L / h, the reaction volume of the first microreactor is 71L, the reaction temperature is 120°C, and the reaction residence time is 15min. The reaction effluent containing vegetable oil polyol was passed into a 50L three-stage batch reactor for further ring-opening reaction. The reaction temperature of the batch reactor w...
Embodiment 3
[0041] Dissolve 170L epoxy soybean oil in 255L ethyl acetate to obtain raw material A, dissolve 76L 1,2-dimethyl-1,2-cyclohexanediol and 2.99kg fluoroboric acid aqueous solution (40wt%) in 115L ethyl acetate to obtain raw material B. Dissolve 11L of methanol in 16L of ethyl acetate to obtain raw material C. The raw material A and the raw material B are respectively pumped into the first micro-mixer, and after thorough mixing, they are passed into the first micro-reactor for a ring-opening reaction to obtain a reaction effluent containing vegetable oil polyols. The sampling rate of raw material A is 195.04L / h, the sampling rate of raw material B is 86.99L / h, the reaction volume of the first microreactor is 47L, the reaction temperature is 100°C, and the reaction residence time is 10min. The reaction effluent containing vegetable oil polyols was passed into a 50L three-stage batch reactor for further ring-opening reaction. The reaction temperature of the batch reactor was 100° C...
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Abstract
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