- 专利标题: Cyclic process for producing taurine from monoethanolamine
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申请号: US17576609申请日: 2022-01-14
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公开(公告)号: US11623914B2公开(公告)日: 2023-04-11
- 发明人: Songzhou Hu
- 申请人: Vitaworks IP, LLC
- 申请人地址: US NJ North Brunswick
- 专利权人: Vitaworks IP, LLC
- 当前专利权人: Vitaworks IP, LLC
- 当前专利权人地址: US NJ North Brunswick
- 代理机构: Myers Wolin, LLC
- 主分类号: C07C303/02
- IPC分类号: C07C303/02 ; C07C303/44 ; C07C303/24 ; C07C213/08 ; C01C1/246 ; C01C1/247
摘要:
There is disclosed a cyclic process for producing taurine from monoethanolamine comprising the steps of: (a) recovering monoethanolamine sulfate from an aqueous mother liquor solution; (b) reacting the monoethanolamine sulfate with sulfuric acid to form an aqueous solution comprised of monoethanolamine bisulfate; (c) heating the aqueous solution comprised of the monoethanolamine sulfate and optionally added monoethanolamine sulfate to yield 2-aminoethyl hydrogen sulfate ester; and (d) reacting the ester with ammonium sulfite or an alkali sulfite to yield taurine.