Method for producing taurine and method for removing impurities from reaction system for preparing taurine
A taurine and taurine technology, applied in the field of taurine production, can solve problems such as high energy consumption and increased environmental pollution risks, and achieve the effects of reducing production energy consumption, increasing product yield, and simple production process
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Embodiment 1
[0050] This embodiment mainly introduces the process of performing various treatments on the basic anion resin column required in the present invention.
[0051] Pretreatment: Wet-load the Amberlite IRA-type basic anion resin into the exchange column, retain the water layer about one-fifth of the column height in the upper layer of the resin, and shake the ion-exchange column in a small range to make the resin dense. Under the protection of nitrogen, use 2BV, 0.1mol / L sodium hydroxide solution to pass through the resin in the ion exchange column at a flow rate of 2.0BV / h, and then use deionized water to wash the residual sodium hydroxide that is not absorbed by the resin. Monitor the pH value of the effluent liquid, and stop washing when the pH value of the effluent liquid is about 8.0±0.5.
[0052] Regeneration treatment: first wash the alkaline anion exchange column with deionized water, and when the pH value is about 7, the material is cleaned, and then use 2BV, 0.1mol / L so...
Embodiment 2
[0056] The purpose of this example is to verify the adsorption effect of the basic anion adsorption resin on sodium taurate and the mixture of sodium taurate and sodium isethionate under laboratory conditions. Get the sodium taurate solution of 0.5mol / L respectively, and the sodium taurate (i.e. taurine alkali metal salt) of 0.5mol / L and the sodium isethionate (i.e. isethionate) of 0.5mol / L Acid-alkali metal salt) mixed solution at room temperature, with the speed of 1.0BV / h, respectively through different types of basic anion resin (quaternary ammonium salt type 、 tertiary ammonium salt type, Amberlite IRA type) to detect the adsorption capacity of resins to pure sodium taurate and the mixture of sodium taurate and sodium isethionate. The mixture of sodium and sodium isethionate has adsorption capacity, especially the 207*7 resin in the quaternary ammonium salt type and the imported Amberlite IRA type resin, for sodium taurate and sodium taurate and isethionate The mixture o...
Embodiment 3
[0059] This example simulates the industrial method for preparing taurine by the ethylene oxide method to obtain a solution similar to the mother liquor composition after taurine is extracted, that is, containing about 14% of sodium taurine and about 14% of sodium isethionate. A mixed solution of about 10%, ethanolamine content of about 5.5%, and ethylene glycol content of about 4.5%.
[0060] Concrete method is: in the beaker of 10 liters, put into the ethylene glycol of 270g, the ethanolamine of 330g, the sodium taurate of 840g, the sodium isethionate of 600g, add pure water, to the scale of 5 liters, It is configured as a solution with 4.5% ethylene glycol content, 5.5% ethanolamine content, 14% sodium taurate content and 10% sodium isethionate content.
[0061] In other similar occasions, different proportions of the above-mentioned solutions can be prepared according to actual needs, all of which can produce the required technical effects of the present invention.
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