发明授权
US4650614A Refining of reaction grade 2-acrylamido-2-methylpropane sulfonic acid
失效
反应级2-丙烯酰氨基-2-甲基丙磺酸的精炼
- 专利标题: Refining of reaction grade 2-acrylamido-2-methylpropane sulfonic acid
- 专利标题(中): 反应级2-丙烯酰氨基-2-甲基丙磺酸的精炼
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申请号: US402254申请日: 1982-07-27
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公开(公告)号: US4650614A公开(公告)日: 1987-03-17
- 发明人: Allan H. Jevne , Patrick T. Cahalan , Arthur J. Coury
- 申请人: Allan H. Jevne , Patrick T. Cahalan , Arthur J. Coury
- 申请人地址: MN Minneapolis
- 专利权人: Medtronic, Inc.
- 当前专利权人: Medtronic, Inc.
- 当前专利权人地址: MN Minneapolis
- 主分类号: C07C309/04
- IPC分类号: C07C309/04 ; C07C143/02
摘要:
Reaction grade 2-acrylamido-2-methylpropane sulfonic acid is refined by mildly heating a slurry-like suspension formed of the acid and a liquid monohydric alcohol, recovering the acid from the alcohol and subsequently drying it.
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