CN101085731B - 一种从土霉素净化液中回收草酸的方法 - Google Patents
一种从土霉素净化液中回收草酸的方法 Download PDFInfo
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- CN101085731B CN101085731B CN2007100245808A CN200710024580A CN101085731B CN 101085731 B CN101085731 B CN 101085731B CN 2007100245808 A CN2007100245808 A CN 2007100245808A CN 200710024580 A CN200710024580 A CN 200710024580A CN 101085731 B CN101085731 B CN 101085731B
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- Prior art keywords
- oxalic acid
- oxytetracycline
- terramycin
- solution
- supercidin
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
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CN2007100245808A CN101085731B (zh) | 2007-06-22 | 2007-06-22 | 一种从土霉素净化液中回收草酸的方法 |
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CN2007100245808A CN101085731B (zh) | 2007-06-22 | 2007-06-22 | 一种从土霉素净化液中回收草酸的方法 |
Publications (2)
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CN101085731A CN101085731A (zh) | 2007-12-12 |
CN101085731B true CN101085731B (zh) | 2010-08-25 |
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CN2007100245808A Expired - Fee Related CN101085731B (zh) | 2007-06-22 | 2007-06-22 | 一种从土霉素净化液中回收草酸的方法 |
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Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101781035B (zh) * | 2009-12-14 | 2012-03-21 | 同济大学 | 一种从土霉素生产废水中回收土霉素的方法 |
CN103243133B (zh) * | 2013-04-28 | 2015-06-03 | 内蒙古开盛生物科技有限公司 | 一种将盐酸与草酸并用提取土霉素碱的生产工艺 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1105979A (zh) * | 1994-01-28 | 1995-08-02 | 石家庄市化工十三厂 | 一种制备高纯草酸的方法 |
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- 2007-06-22 CN CN2007100245808A patent/CN101085731B/zh not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN1105979A (zh) * | 1994-01-28 | 1995-08-02 | 石家庄市化工十三厂 | 一种制备高纯草酸的方法 |
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CN101085731A (zh) | 2007-12-12 |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Chifeng Pharmaceutical Co., Ltd. Assignor: Nanjing University Contract record no.: 2011990000201 Denomination of invention: Method for reclaiming oxalic acid from terramycin purification liquid Granted publication date: 20100825 License type: Exclusive License Open date: 20071212 Record date: 20110330 |
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100825 Termination date: 20150622 |
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EXPY | Termination of patent right or utility model |