Method for preparing fluorine-containing sodium alkyl alcohol
A technology of fluorine-containing alkyl alcohol and alkyl alcohol, which is applied in the field of preparation of sodium fluorine-containing alkyl alkoxide solution, can solve the problems of more energy consumption and cost increase, and achieve the effect of increasing post-processing steps and saving production costs
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Embodiment 1
[0019] Add 2376g (18mol) of tetrafluoropropanol into a 2L four-necked flask, protect it with nitrogen, and stir mechanically (rotating speed 500r / min), and the treated sodium metal (peeled, cut into about 5×5×5mm Particles) were added to the flask, sodium metal was added in 10 batches, each time adding 9.2g (total 4mol). Wait until the sodium metal has completely disappeared before adding the next batch. The reaction temperature is 70-80°C, and the sodium metal is consumed after 23 hours of reaction. The theoretical solution concentration is about 25% by calculation; the measured value is 24.2%.
Embodiment 2
[0021] Add 2376g (18mol) of tetrafluoropropanol into a 2L four-necked flask, protect it with nitrogen, and stir it mechanically (rotating speed 500r / min). The processed sodium metal (peeled, cut into pieces with a size of about 5×5×5mm) Particles) were added to the flask, and sodium metal was added in 10 batches, adding 9.2 g each time, (a total of 4 mol). Wait until the sodium metal has completely disappeared before adding the next batch. The reaction temperature is 80-90°C, and the sodium metal is completely consumed after 15.5 hours of reaction. The theoretical solution concentration is about 25% by calculation; the measured value is 24.0%.
Embodiment 3
[0023] Add 2376g (18mol) of tetrafluoropropanol into a 2L four-necked flask, protect it with nitrogen, and stir it mechanically (rotating speed 500r / min). The processed sodium metal (peeled, cut into pieces with a size of about 5×5×5mm) Particles) were added to the flask, and sodium metal was added in 10 batches, adding 9.2 g each time, (a total of 4 mol). Wait until the sodium metal has completely disappeared before adding the next batch. The reaction temperature is 90-100°C, and the sodium metal is consumed after 7 hours of reaction. The theoretical solution concentration is about 25% by calculation; the measured value is 23.5%.
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