Vitaworks has developed three generations of technologies for producing taurine from ethylene oxide. Geneneration 1 and Geneneration 3 technologies have been successfully implemented and account for 95% of the worldwide production of taurine.
The following tables demonstrate the environment impact of Vitaworks technologies for an annual worldwide production and consumption of 50,000 metric tons of taurine. Both the chemicals used and waste generated are greatly reduced. Most importantly, Vitaworks Geneneration 3 technology eliminates the use of sodium hydroxide and sulfuric acid and does not produce sodium sulfate as a byproduct at all.
|Chemicals Used||Traditional||Gen 1||Gen 3|
|Sodium Hydroxide (30%)||80,000||80,000||0|
|Waste Produced||Traditional||Gen 1||Gen 3|
|Hazardous Organic Waste||12,500||<500||<500|
The first generation technology improved the traditional process by increasing the overall yield of 75% to greater than 95%, drastically reducing or eliminating hazardous organic waste discharge.
The second generation technology achieves atom-efficiency by replacing sulfuric acid with sulfurous acid or isethionic acid to eliminate the coproduction of sodium sulfate. It incorporates the Generation 1 technology to achieve a quantitative yield.
The third generation technology achieves atom efficiency by producing taurine from ammonium isethionate, which can be economically and conveniently produced from ammonium bisulfite and ethylene oxide. It incorporates the Generation 1 technology to achieve a quantitative yield. This technology is the best process to manufacture taurine on a commercial scale.