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    • 9. 发明授权
    • Cyclic process for producing taurine
    • 生产牛磺酸的循环过程
    • US09593076B2
    • 2017-03-14
    • US15238621
    • 2016-08-16
    • VITAWORKS IP, LLC
    • Songzhou Hu
    • C07C303/02
    • C07C303/02C07C303/32C07C303/44C07C309/14
    • There is disclosed a process for producing taurine by the ammonolysis of alkali isethionate in the presence of alkali ditaurinate or alkali tritaurinate, or their mixture, to inhibit the formation of byproducts and to continuously convert the byproducts of the ammonolysis reaction to alkali taurinate. Alkali taurinate is neutralized with isethionic acid to obtain taurine and to regenerate alkali isethionate. The production yield is increased to from 90% to nearly quantitative. The ammonolysis reaction is catalyzed by alkali salts of hydroxide, sulfate, sulfite, phosphate, or carbonate.
    • 公开了通过碱金属羟乙基磺酸盐在二磺酸三钠或三氯三酸二钠或其混合物的存在下的氨解生产牛磺酸的方法,以抑制副产物的形成,并将氨解反应的副产物连续转化成碱金牛磺酸盐。 碱性牛磺酸钠用羟乙磺酸中和,得到牛磺酸,再生碱羟乙基磺酸盐。 生产产量从90%提高到接近数量。 氨解反应由氢氧化物,硫酸盐,亚硫酸盐,磷酸盐或碳酸盐的碱金属盐催化。