CN1132838C - Process for preparing N,N-diacetate aminomethylene phosphoric acid (diglycerophosphine) - Google Patents
Process for preparing N,N-diacetate aminomethylene phosphoric acid (diglycerophosphine) Download PDFInfo
- Publication number
- CN1132838C CN1132838C CN00116540A CN00116540A CN1132838C CN 1132838 C CN1132838 C CN 1132838C CN 00116540 A CN00116540 A CN 00116540A CN 00116540 A CN00116540 A CN 00116540A CN 1132838 C CN1132838 C CN 1132838C
- Authority
- CN
- China
- Prior art keywords
- acid
- iminodiacetic acid
- disodium salt
- iminodiacetic
- reaction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
Description
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN00116540A CN1132838C (en) | 2000-06-15 | 2000-06-15 | Process for preparing N,N-diacetate aminomethylene phosphoric acid (diglycerophosphine) |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN00116540A CN1132838C (en) | 2000-06-15 | 2000-06-15 | Process for preparing N,N-diacetate aminomethylene phosphoric acid (diglycerophosphine) |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1329006A CN1329006A (en) | 2002-01-02 |
CN1132838C true CN1132838C (en) | 2003-12-31 |
Family
ID=4585944
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN00116540A Expired - Fee Related CN1132838C (en) | 2000-06-15 | 2000-06-15 | Process for preparing N,N-diacetate aminomethylene phosphoric acid (diglycerophosphine) |
Country Status (1)
Country | Link |
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CN (1) | CN1132838C (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100436460C (en) * | 2005-10-08 | 2008-11-26 | 重庆三峡英力化工有限公司 | Synthetic method for N-phosphonyl methyl imino diacetic acid |
CN100400543C (en) * | 2006-09-08 | 2008-07-09 | 四川贝尔实业有限责任公司 | Method for preparing Phosphonomethyl iminodiacetic acid (PMIDA) through hydrolysis of imino diacetonitrile |
WO2012009860A1 (en) * | 2010-07-23 | 2012-01-26 | 重庆紫光化工股份有限公司 | Method for preparing n-phosphonomethyl iminodiacetic acid |
-
2000
- 2000-06-15 CN CN00116540A patent/CN1132838C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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CN1329006A (en) | 2002-01-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Kaipu Fine Chemical Industry Co., Ltd., Shanghai Assignor: Kaipu Fine Chemical Industry Co., Ltd., Shanghai Contract fulfillment period: 2008.10.1 to 2020.6.15 contract change Contract record no.: 2008330001430 Denomination of invention: Method for preparing N-formyl morpholine Granted publication date: 20031231 License type: Exclusive license Record date: 20081028 |
|
LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.10.1 TO 2020.6.15; CHANGE OF CONTRACT Name of requester: SHANGHAI KAIPU FINE CHEMICAL CO., LTD. Effective date: 20081028 |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20031231 Termination date: 20150615 |
|
EXPY | Termination of patent right or utility model |