System for system for preparing high-purity taurine and salt

Abstract

A system for preparing high-purity taurine and salt. The system can be used in an ethylene oxide process for producing taurine. The system includes an addition reaction device, an ammonolysis reaction device, an evaporation device, and a taurine salt concentrated solution collection device. The ammonolysis reaction device is provided with a metal salt inlet, the taurine salt concentrated solution collection device is connected with an ion exchange system for ion exchange, the ion exchange system is provided with an acid inlet, an adsorption solution outlet and an eluate outlet, the adsorption solution outlet of the ion exchange system is connected with a taurine extraction device, the eluate outlet of the ion exchange system is connected with a salt extraction device, and the ion exchange system is provided with a purified water inlet, an adsorption unit cleaning water outlet and an elution unit cleaning water outlet.

What is claimed is: 
     
         1 . A system for preparing high-purity taurine and salt for use in producing the taurine by an ethylene oxide synthesis method, the system comprising:
 (a) an addition reaction device;   (b) an ammonolysis reaction device;   (c) an evaporation device; and   (d) a taurine salt concentrated solution collection device;   wherein
 the ammonolysis reaction device is provided with a metal salt inlet, 
 the taurine salt concentrated solution collection device is connected with an ion exchange system for ion exchange, 
 the ion exchange system is provided with an acid inlet, an adsorption solution outlet and an eluate outlet, 
 the adsorption solution outlet of the ion exchange system is connected with a taurine extraction device, 
 the eluate outlet of the ion exchange system is connected with a salt extraction device, and 
   further wherein the ion exchange system is provided with a purified water inlet, an adsorption unit cleaning water outlet and an elution unit cleaning water outlet.   
     
     
         2 . The system according to  claim 2 , wherein the adsorption unit cleaning water outlet is connected with the taurine salt concentrated solution collection device, and the elution unit cleaning water outlet is connected with the salt extraction device.