7347-25-3Relevant articles and documents
A Preparation method of Taurine surfactant derived from natural oil
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Paragraph 0098-0100; 0102, (2021/05/11)
The present invention relates to a process for preparing taurine based surfactants from natural oils. The present invention relates to a method for preparing a taurine surfactant, and more particularly, to a method for preparing a taurine surfactant by direct reaction of taurine with natural oil without further processing. In addition, the taurine-based surfactant produced by the method may be used as an efficient raw material, has excellent physical properties and detergency, and has excellent cleaning power when the detergent composition and detergent are prepared.
Preparation method of sodium taurate
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Paragraph 0093-0095, (2020/05/30)
The invention provides a preparation method of sodium taurate. The preparation method comprises the following steps: dissolving sodium hydroxyethyl sulfonate and a raw material sodium taurate into a guanidyl-containing ionic liquid, performing a reaction to obtain an ionic liquid solution containing a mixed product of sodium ditaurate and sodium tritaurate, introducing liquid ammonia into the ionic liquid solution of the mixed product, performing a reaction to obtain an ionic liquid solution of the product sodium taurate, adding the ionic liquid solution of the product sodium taurate into an alcohol solvent for solvating out, and separating out the obtained precipitated solid to obtain the product sodium taurate. The sodium taurate preparation method is high in product yield, good in purity, high in raw material utilization rate, simple and convenient in process and mild in reaction condition, the production efficiency of sodium taurate can be greatly improved, and the production costis reduced, so that the sodium taurate preparation method has a very good industrial application prospect.
A PROCESS FOR PRODUCING TAURINE
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Paragraph 0028, (2018/08/09)
The present application provides a process for preducing taurine, comprising the steps as follows: (a) mixing isethionic acid with taurine salt solution until the system pH reaches a certain value in a range from 5.0 to 9.5; (b) separating liquid phase and solid phase of the system; wherein said solid phase is the crude product of taurine, and said liquid phase is isethionate solution; (c) reacting ammonia solution with said liquid phase obtained from step (b) to obtain taurine salt solution. It uses isethionic acid to adjust the pH of the taurine salt solution, avoiding the problem causing by using sulphate acid to adjust the pH in the traditional process. By the recycling use of the cations in taurine salts, a new raw material or reagent does not need to be added which is benefit to reducing the use of dangerous chemical materials, simplifying the production process greatly, improving the utilization rate of raw materials, increasing the yield of the product and decreasing production cost significantly.