US 9,573,890 B2
Process for producing taurineGeneral
US 9,573,890 B2
Process for producing taurine
Tech Center:
1600
Examiner:
Karl J Puttlitz
Art Unit:
1671
Agent:
Inventors:
Songzhou Hu
Assignee:
Priority:
04/18/14
Filed:
08/04/16
Granted:
02/21/17
Expiration:
04/18/34
Abstract
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. 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.
Cooperative Patent Classification (CPC)
B01B01J23/04B01JC07C303/22C07C