A kind of taurine synthesis method
A synthetic method and technology of taurine, applied in the direction of sulfonic acid preparation, sulfonate preparation, chemical instruments and methods, etc., can solve problems such as high temperature and high pressure
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Embodiment 1
[0037] The prepared 1000g sodium bisulfite solution (24wt%) was added to the reaction kettle, the temperature was controlled at 45°C, and then 106.7g of ethylene oxide was introduced, the reaction pressure was adjusted to 2bar, and the experiment was stopped after 45min. After cooling to room temperature, the addition reaction solution was selectively filtered using PM280 nanofiltration membrane, the filtration temperature was 30 °C, the pressure was 1 bar, and water was added after filtration to prepare. A 3% catalyst zirconia-supported ruthenium hydroxide was added to the 1L high-pressure reactor in advance, and the addition amount was 16.8g; 700g of the prepared sodium isethionate solution (18.0wt%) was added to the 1L high-pressure reactor In the process, liquid ammonia was introduced to make the concentration reach 19.0 wt%, the reaction system was heated to 110 °C, the system pressure was maintained at 4 MPa, and the reaction was carried out for 30 min. The yield of sodiu...
Embodiment 2
[0039] The prepared 1000g sodium bisulfite solution (10wt%) was added to the reaction kettle, the temperature was controlled at 25°C, 50.8g of ethylene oxide was then introduced, the reaction pressure was adjusted to 1bar, and the experiment was stopped after 10min. After cooling to room temperature, the addition reaction solution was selectively filtered using a PMS600 nanofiltration membrane, the filtration temperature was 10°C, the pressure was 0.1 bar, and water was added after filtration to prepare. A 4% catalyst zirconia-supported ruthenium hydroxide was added to the 1L high-pressure reactor in advance, and the addition amount was 17.6g; 705g of the prepared sodium isethionate solution (10.0wt%) was added to the 1L high-pressure reactor In the process, liquid ammonia was introduced to make the concentration reach 30.0wt%, the reaction system was heated to 80°C, the system pressure was maintained at 1MPa, and the reaction was performed for 10min. The yield of sodium taurin...
Embodiment 3
[0041] The prepared 1000g sodium bisulfite solution (30wt%) was added to the reaction kettle, the temperature was controlled at 95°C, and then 126.9g of ethylene oxide was introduced, the reaction pressure was adjusted to 7bar, and the experiment was stopped after 70min. After cooling to room temperature, the addition reaction solution was selectively filtered using PM280 nanofiltration membrane, the filtration temperature was 50 °C, the pressure was 5 bar, and water was added after filtration to prepare. A 5% catalyst titanium oxide-supported ruthenium hydroxide was added to a 1L high-pressure reactor in advance, and the addition amount was 2.84g (0.8wt%); 711g of the prepared sodium isethionate solution (40wt%) was added to In a 1L high-pressure reactor, liquid ammonia was introduced to make the concentration reach 25.0wt%, the reaction system was heated to 150°C, the system pressure was maintained at 5.5MPa, and the reaction was performed for 60min. The yield of sodium tauri...
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