发明授权
US06884912B1 Aminoguanidine bicarbonate with particular properties and method for making same
有权
具有特殊性质的氨基胍碳酸氢盐及其制备方法
- 专利标题: Aminoguanidine bicarbonate with particular properties and method for making same
- 专利标题(中): 具有特殊性质的氨基胍碳酸氢盐及其制备方法
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申请号: US10031113申请日: 2000-06-08
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公开(公告)号: US06884912B1公开(公告)日: 2005-04-26
- 发明人: Jean-Michel Bossoutrot , Paul Bourdauducq
- 申请人: Jean-Michel Bossoutrot , Paul Bourdauducq
- 申请人地址: FR Puteaux
- 专利权人: Atofina
- 当前专利权人: Atofina
- 当前专利权人地址: FR Puteaux
- 优先权: FR9909257 19990716
- 国际申请: PCTFR00/01579 WO 20000608
- 国际公布: WO0105752 WO 20010125
- 主分类号: C07C277/08
- IPC分类号: C07C277/08 ; C07C277/02 ; C07C279/02 ; C07C281/16
摘要:
The invention concerns a method for making aminoguanidine bicarbonate from an aqueous solution of cyanamide and an aqueous solution of hydrazine in the presence of CO2. The invention is characterised in that it consists in proceeding with an amount of cyamide slightly higher than the stoichiometric quantity. The invention also concerns quasi-spherical agglomerates of aminoguanidine bicarbonate crystals.
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