发明名称 |
High pH recovery of neutral amino acids. |
摘要 |
<p>Neutral amino acids can be recovered from an aqueous solution by the steps of: 1) forming a concentrated solution of said amino acid which solution has a pH above the solution pKa of the acid 2) removing base uniformly from the solution so as to form solid particles of the neutral amino acid at a pH above the solution pKa of the neutral amino acid. 3) recovering said solid particles from the solution. This method provides a product that is highly pure without the need for organic solvents. In a preferred embodiment, the solution is first concentrated and then filtered at high pH. This high pH filtration avoids the need for conventional ion exchange treatments.</p> |
申请公布号 |
EP0299434(A2) |
申请公布日期 |
1989.01.18 |
申请号 |
EP19880111146 |
申请日期 |
1988.07.12 |
申请人 |
EASTMAN KODAK COMPANY |
发明人 |
JAFFARI, MARK DARIUS C/O EASTMAN KODAK COMPANY |
分类号 |
C07C67/00;C07C227/00;C07C227/28;C07C227/40;C07C229/00;C07D209/20 |
主分类号 |
C07C67/00 |
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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