发明名称 |
Process for producing ascorbic acid derivative |
摘要 |
Metal salts or substitutted or non-substituted ammonium salts of ascorbic acid derivatives can be produced in high yield by treating an acidic aqueous solution containing ascorbic acid-2-phosphate or ascorbic acid-2-sulfate with a porous adsorbent such as activated carbon, followed by treating the adsorbent with a basic aqueous solution containing e.g. a metal salt of an organic acid or substituted or non-substituted ammonium salt ion to elute the desired salt of ascorbic acid derivative.
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申请公布号 |
US5516919(A) |
申请公布日期 |
1996.05.14 |
申请号 |
US19950423988 |
申请日期 |
1995.04.18 |
申请人 |
WAKO PURE CHEMICAL INDUSTRIES, LTD. |
发明人 |
SANO, ATSUNORI;OKAMOTO, KUNIAKI;EBASHI, JUN |
分类号 |
C07F9/655;(IPC1-7):C07F9/655;C07D307/62 |
主分类号 |
C07F9/655 |
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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