CN1249016C - 邻甲苯二胺的提纯方法 - Google Patents
邻甲苯二胺的提纯方法 Download PDFInfo
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- CN1249016C CN1249016C CN 02111089 CN02111089A CN1249016C CN 1249016 C CN1249016 C CN 1249016C CN 02111089 CN02111089 CN 02111089 CN 02111089 A CN02111089 A CN 02111089A CN 1249016 C CN1249016 C CN 1249016C
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- ortho
- toluene diamine
- zinc
- raw material
- product
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Abstract
Description
编号 | 邻甲苯二胺原料 | 粗产物颜色 | 产率(%) | 二次活性炭脱色后颜色 | 产物中有色杂质含量,%重量 | 三次脱色后的加德纳色标度 |
实施例8 | 实施例1 | 棕色 | 92.0 | 淡棕色 | 0.13 | 9 |
实施例9 | 实施例2 | 棕色 | 91.9 | 淡棕色 | 0.13 | 9 |
实施例10 | 实施例3 | 棕色 | 91.6 | 淡棕色 | 0..14 | 10 |
实施例11 | 实施例4 | 棕色 | 91.7 | 淡棕色 | 0.15 | 10 |
实施例12 | 实施例5 | 棕色 | 91.3 | 淡棕色 | 0.15 | 11 |
实施例13 | 实施例6 | 棕色 | 91.4 | 淡棕色 | 0.14 | 11 |
实施例14 | 实施例7 | 深棕色 | 91.09 | 棕色 | 0.16 | 12 |
对比例3 | 对比例1 | 深绿色 | 89.8 | 绿色 | 2.80 | 17 |
对比例4 | 对比例2 | 深绿色 | 90.0 | 绿色 | 2.59 | 16 |
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN 02111089 CN1249016C (zh) | 2002-03-20 | 2002-03-20 | 邻甲苯二胺的提纯方法 |
Applications Claiming Priority (1)
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CN 02111089 CN1249016C (zh) | 2002-03-20 | 2002-03-20 | 邻甲苯二胺的提纯方法 |
Publications (2)
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CN1445210A CN1445210A (zh) | 2003-10-01 |
CN1249016C true CN1249016C (zh) | 2006-04-05 |
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CN 02111089 Expired - Fee Related CN1249016C (zh) | 2002-03-20 | 2002-03-20 | 邻甲苯二胺的提纯方法 |
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CN (1) | CN1249016C (zh) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102757351B (zh) * | 2012-07-18 | 2014-04-16 | 如皋市金陵化工有限公司 | 一种连续提纯精制邻甲苯二胺的方法 |
CN103992282A (zh) * | 2014-06-03 | 2014-08-20 | 如皋市金陵化工有限公司 | 一种苯骈三氮唑钠盐的生产方法 |
CN105503620A (zh) * | 2015-12-28 | 2016-04-20 | 甘肃银光聚银化工有限公司 | 一种提高邻位tda纯度的方法 |
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- 2002-03-20 CN CN 02111089 patent/CN1249016C/zh not_active Expired - Fee Related
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CN1445210A (zh) | 2003-10-01 |
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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: Nantong Taihe Chemical Co., Ltd. Assignor: Shanghai Taihe (Group) Co., Ltd. Contract fulfillment period: 2009.2.28 to 2012.2.28 Contract record no.: 2009320000333 Denomination of invention: Method for purifying ortho-toluene diamine Granted publication date: 20060405 License type: Exclusive license Record date: 20090312 |
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Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.2.28 TO 2012.2.28; CHANGE OF CONTRACT Name of requester: NANTONG TAIHE CHEMICAL COP.,LTD Effective date: 20090312 |
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EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Nantong Taihe Chemical Co., Ltd. Assignor: Shanghai Taihe (Group) Co., Ltd. Contract fulfillment period: 2008.12.31 to 2014.12.31 Contract record no.: 2009320000565 Denomination of invention: Method for purifying ortho-toluene diamine Granted publication date: 20060405 License type: Exclusive license Record date: 20090409 |
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LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.12.31 TO 2014.12.31; CHANGE OF CONTRACT Name of requester: NANTONG TAIHE CHEMICAL COP.,LTD Effective date: 20090409 |
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C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060405 Termination date: 20110320 |