CN104058936B - 一种分离提纯对甲酚的方法 - Google Patents
一种分离提纯对甲酚的方法 Download PDFInfo
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- CN104058936B CN104058936B CN201410280902.5A CN201410280902A CN104058936B CN 104058936 B CN104058936 B CN 104058936B CN 201410280902 A CN201410280902 A CN 201410280902A CN 104058936 B CN104058936 B CN 104058936B
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- paracresol
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- oxalic acid
- oxalate complex
- toluene
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/68—Purification; separation; Use of additives, e.g. for stabilisation
- C07C37/685—Processes comprising at least two steps in series
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
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Description
实施例 | 对甲酚提取效率 | 对甲酚纯度 | 络合母液中间对甲酚比例 |
实施例1 | 92.7% | 99.4% | 82.9%:15.6% |
实施例2 | 90.5% | 99.5% | 80.1%:16.3% |
实施例3 | 91.5% | 99.3% | 82.9%:15.6% |
实施例4 | 87.6% | 99.4% | 82.9%:15.6% |
实施例5 | 87.5% | 99.5% | 82.9%:15.6% |
实施例6 | 92.0% | 99.3% | 82.9%:15.6% |
实施例7 | 93.2% | 99.3% | 82.9%:15.6% |
实施例8 | 92.5% | 99.3% | 82.5%:15.8% |
实施例9 | 92.6% | 99.2% | 82.3%:16.2% |
实施例10 | 92.9% | 99.4% | 82.9%:15.6% |
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CN104058936B true CN104058936B (zh) | 2016-08-17 |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN107118387A (zh) * | 2017-05-19 | 2017-09-01 | 江苏飞亚化学工业有限责任公司 | 一种复合型抗氧化剂 |
CN107057114A (zh) * | 2017-05-19 | 2017-08-18 | 江苏飞亚化学工业有限责任公司 | 一种乳液型高分散抗氧化剂 |
CN115304456B (zh) * | 2022-08-09 | 2023-09-22 | 宁夏派可威生物科技有限公司 | 一种尿素分离间甲酚的分离工艺 |
CN115636735B (zh) * | 2022-10-27 | 2024-05-28 | 北京化工大学 | 一种萃取分离间对甲酚混合物的工艺方法 |
Citations (1)
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CN103333052A (zh) * | 2013-07-25 | 2013-10-02 | 北京旭阳化工技术研究院有限公司 | 一种分离工业间对混甲酚以制备纯对甲酚和纯间甲酚的方法 |
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CN103333052A (zh) * | 2013-07-25 | 2013-10-02 | 北京旭阳化工技术研究院有限公司 | 一种分离工业间对混甲酚以制备纯对甲酚和纯间甲酚的方法 |
Non-Patent Citations (1)
Title |
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对甲酚与间甲酚的分离;邓国才等;《天津化工》;19951231(第4期);第12-15页 * |
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Inventor after: Du Chengtang Inventor after: Shi Bo Inventor after: Qu Liangduan Inventor after: Zhuang Dongqing Inventor after: Ge Fangsun Inventor before: Du Chengtang Inventor before: Qu Liangduan Inventor before: Zhuang Dongqing Inventor before: Wang Guangya Inventor before: Ge Fangsun |
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