发明名称 |
Method to recover organic tertiary amines from waste sulfuric acid |
摘要 |
The present invention describes a method to recover organic tertiary amines from waste sulfuric acid comprising the following steps: a) reacting i) waste sulfuric acid comprising organic tertiary amines with ii) ammonia in an amount sufficient to obtain a pH of 9.5 or higher and b) separating the organic tertiary amines from the reaction mixture obtained in step a) wherein during the separation the pH of the reaction mixture is adjusted at a pH of 9.5 or higher. |
申请公布号 |
US8658830(B2) |
申请公布日期 |
2014.02.25 |
申请号 |
US201113640328 |
申请日期 |
2011.04.13 |
申请人 |
BRIETZKE STEPHAN;GROER PETER;MOLLENKOPF CARL CHRISTOPH;NUTRINOVA NUTRITION SPECIALTIES & FOOD INGREDIENTS GMBH |
发明人 |
BRIETZKE STEPHAN;GROER PETER;MOLLENKOPF CARL CHRISTOPH |
分类号 |
C07C209/86 |
主分类号 |
C07C209/86 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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