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Taurine separation and purification device

A technology for separation and purification of taurine, which is applied in the field of separation and purification equipment for taurine, can solve the problems of increased production and processing costs, low added value of Yuanming powder, etc., and achieves the effect of clean production

Inactive Publication Date: 2019-12-10
王建峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] h 2 NCH 2 CH 2 SO 3 Na+1 / 2H 2 SO 4 ——H 2 NCH 2 CH 2 SO 3 H+1 / 2Na 2 SO 4 Ethylene oxide method yield is higher, but produces a large amount of sodium sulfate (the sodium sulfate) when being neutralized by sodium taurine feed solution and sulfuric acid, must produce a large amount of sodium sulfate when producing taurine, and as industrial The added value of the by-product Yuanming powder is low, which increases the cost of production and processing

Method used

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Effect test

Embodiment 1

[0034] Pass ethylene oxide into sodium bisulfite solution, specifically, mix ethylene oxide and sodium bisulfite through an ionized multi-channel nozzle device under the action of a catalyst to prepare sodium isethionate The reaction temperature of the solution is 60-75°C, the molar ratio of ethylene oxide to sodium bisulfite is controlled at 1.05-1.10, the pH value during the reaction is controlled at 5.7-6.3, and the yield of sodium isethionate is greater than 95%. .

[0035] In the synthesis section, the mother liquor and supplementary ammonia gas, ammonia water or liquid ammonia are ammonolyzed with sodium isethionate to sodium taurine through an ionized multi-channel nozzle device, and sodium iminodisulfonate and N- Sodium triethanesulfonate is also converted to sodium taurate.

[0036] The sodium taurine solution obtained through high temperature and high pressure synthesis reaction is added to sodium bisulfite to neutralize to pH=5.0-9.0, the temperature is 20-40 DEG C...

Embodiment 2

[0042] Pass ethylene oxide into sodium bisulfite solution, specifically, mix ethylene oxide and sodium bisulfite through an ionized multi-channel nozzle device under the action of a catalyst to prepare sodium isethionate The reaction temperature of the solution is 60-75°C, the molar ratio of ethylene oxide to sodium bisulfite is controlled at 1.05-1.10, the pH value during the reaction is controlled at 5.7-6.3, and the yield of sodium isethionate is greater than 95%. .

[0043] Sodium isethionate is mixed with the reused mother liquor through an ionized multi-channel nozzle device, and then ammonia gas, ammonia water or liquid ammonia is supplemented through the ionized multi-channel nozzle device, and the ammonia content is controlled at 24-34% (w / v ), into the synthesis tower. The reaction temperature is controlled at 230-280°C, the pressure is controlled at 16-21MPa, and the residence time of the material in the tower is not less than 30 minutes. Ammonolysis of sodium ise...

Embodiment 3

[0050] Pass ethylene oxide into sodium bisulfite solution, specifically, mix ethylene oxide and sodium bisulfite through an ionized multi-channel nozzle device under the action of a catalyst to prepare sodium isethionate The reaction temperature of the solution is 60-75°C, the molar ratio of ethylene oxide to sodium bisulfite is controlled at 1.05-1.10, the pH value during the reaction is controlled at 5.7-6.3, and the yield of sodium isethionate is greater than 95%. .

[0051] Sodium isethionate is mixed with the reused mother liquor through an ionized multi-channel nozzle device, and then ammonia gas, ammonia water or liquid ammonia is supplemented through the ionized multi-channel nozzle device, and the ammonia content is controlled at 24-34% (w / v ), into the synthesis tower. The reaction temperature is controlled at 230-280°C, the pressure is controlled at 16-21MPa, and the residence time of the material in the tower is not less than 30 minutes. Ammonolysis of sodium ise...

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Abstract

The invention relates to a taurine separation and purification device. The taurine separation and purification device is suitable for a method for synthesizing taurine by taking oxirane as a raw material. The method specifically includes the steps that an ionization multi-channel nozzle device is utilized to mix the oxirane with sodium hydrogen sulfite and other gas, liquid and solid phase catalysts through nanoparticles to prepare sodium 2-hydroxyethanesulfonate, then sodium taurate is prepared through the high temperature and high pressure and concentration, and the sodium hydrogen sulfite is adopted to neutralize sodium taurate material liquid; and in a ceramic nano metal molecular cage assembly, through a self-assembly reaction of a tridentate bridging ligand containing organic sulfurand nitrogen and bivalent nickel, palladium or platinum ions, a cubic metal-organic cage with O<h> symmetry is constructed, meanwhile, exchange of hydrogen ions and sodium ions and solvent molecular catalysis are accommodated, and thus the taurine is obtained. A mother solution is concentrated and separated to obtain sodium sulfite to serve as a raw material of an oxirane reaction, a carrier for absorption and transport of sulfur dioxide, and a raw material for neutralization of the sodium taurate material liquid. Waste-liquid-free cycle production of the taurine is achieved.

Description

technical field [0001] The invention relates to a separation and purification device for taurine. Background technique [0002] The chemical name of taurine is 2-aminoethanesulfonic acid, which is the most abundant sulfur-containing free amino acid in the cells of the body. It is beneficial to the development of the brain, nerves, internal organs, endocrine functions of infants and young children, as well as the absorption of calcium, fat and vitamins. Plays a vital role. And helps adults enhance their physical fitness, prevent disease, relieve fatigue and improve work efficiency. As a nutritional fortifier, it is widely added to a variety of foods, especially breast milk powder. [0003] There are more than ten kinds of laboratory synthesis methods for taurine, but there are only two industrial synthesis methods. That is, esterification sulfonation method (ethanolamine method) and sodium isethionate ammonia solution acidification method (ethylene oxide method). The ethan...

Claims

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Application Information

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IPC IPC(8): C07C303/44C07C303/02C07C309/14
CPCC07C303/02C07C303/32C07C303/44C07C309/14C07C309/08
Inventor 王建峰包雅星
Owner 王建峰
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