发明名称 |
METHODS AND APPARATUS FOR PRODUCTION OF NATURAL L-MENTHOL |
摘要 |
Embodiments are provided that provide for efficient production of highly pure natural I-menthol. In some embodiments, a method for preparing natural I-menthol involves providing crude mentha oil in a crystallizer and gradually reducing the temperature of the crystallizer in a step-wise manner, thereby producing highly pure crystals in less than two weeks. The methods disclosed herein are suitable for pharmaceutical GMP. |
申请公布号 |
EP2398755(A1) |
申请公布日期 |
2011.12.28 |
申请号 |
EP20100708585 |
申请日期 |
2010.02.17 |
申请人 |
NAGAOKA & CO., LTD. |
发明人 |
NAGAOKA, RYOSUKE;IZUKURA, HIDEAKI;TOKITA, SUSUMU;SHIBATA, YURI;NAGAOKA, YOSHIYUKI |
分类号 |
C07C29/78;A23L27/20;B01D9/02;B01J19/00;C07C35/12;C11B9/02 |
主分类号 |
C07C29/78 |
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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