A method for continuously producing acetyl phosphate using a microchannel reaction device
A channel reaction device and the technology of acetyl phosphate, which is applied in the field of chemical synthesis and technology, can solve the problems of low purity and yield of reaction products, and achieve the effect of short reaction time and good mass transfer effect
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Embodiment 1
[0038] Configure the methanol solution of phosphoric acid in the first raw material storage tank, the proportioning of phosphoric acid and methyl alcohol is 1mol:300ml, configure the ethyl acetate solution of acetic anhydride in the second raw material storage tank, the proportioning of acetic anhydride and ethyl acetate is 1mol: 200ml. Wait for the pump to enter the microstructure mixer and enter the microchannel reactor for reaction.
Embodiment 2~3
[0040] Pump the first raw material storage tank (methanol solution of phosphoric acid) and the second raw material storage tank (ethyl acetate solution of acetic anhydride) according to the volume flow ratio of 1:2 (embodiment 2), 1:4 (embodiment 3) Put it into the microchannel reactor, keep it for 10min under the reaction condition of 0°C, and take the reaction solution from the microchannel reactor I for detection.
[0041] Selectivity and conversion rate of table 1 embodiment 2~3
[0042] Example
Embodiment 4~6
[0044] The first raw material storage tank (methanol solution of phosphoric acid) and the second raw material storage tank (ethyl acetate solution of acetic anhydride) are pumped into the microchannel reactor according to the volume flow ratio of 1:2.5, at -5 ℃ (embodiment 4 ), 0 ℃ (embodiment 5), 5 ℃ (embodiment 6) reaction conditions, retain 10min, get the reaction liquid detection that microchannel reactor 1 comes out.
[0045] Selectivity and conversion rate of table 2 embodiment 4~6
[0046] Example
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