ES2162062T3 - Estabilizacion de nitrilos. - Google Patents
Estabilizacion de nitrilos.Info
- Publication number
- ES2162062T3 ES2162062T3 ES96916891T ES96916891T ES2162062T3 ES 2162062 T3 ES2162062 T3 ES 2162062T3 ES 96916891 T ES96916891 T ES 96916891T ES 96916891 T ES96916891 T ES 96916891T ES 2162062 T3 ES2162062 T3 ES 2162062T3
- Authority
- ES
- Spain
- Prior art keywords
- nitrils
- stabilization
- sub
- iminodiacetonitrile
- stabilizing
- 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 - Lifetime
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C253/00—Preparation of carboxylic acid nitriles
- C07C253/32—Separation; Purification; Stabilisation; Use of additives
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Catalysts (AREA)
- Paper (AREA)
- Exchange Systems With Centralized Control (AREA)
- Glass Compositions (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Anti-Oxidant Or Stabilizer Compositions (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
METODO DE ESTABILIZACION DE NITRILOS, Y EN PARTICULAR DE IMINODIACETONITRILO (IDAN), ETILENDIAMINO-TRIACETONITRILO (EDTN) Y ESPECIALMENTE NITRILOTRIACETONITRILO (NTAN). LA PRESENTE INVENCION TAMBIEN HACE REFERENCIA DEL NITRILO ESTABILIZADO RESULTANTE. EL METODO DE LA PRESENTE INVENCION SE BASA EN PONER EN CONTACTO EL NITRILO CON UNA MEZCLA DE SILICE Y ALUMINA, ZEOLITAS O CRISTAL.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/466,095 US5616772A (en) | 1995-06-06 | 1995-06-06 | Method of stabilizing nitriles |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2162062T3 true ES2162062T3 (es) | 2001-12-16 |
Family
ID=23850442
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES96916891T Expired - Lifetime ES2162062T3 (es) | 1995-06-06 | 1996-05-31 | Estabilizacion de nitrilos. |
Country Status (12)
Country | Link |
---|---|
US (1) | US5616772A (es) |
EP (4) | EP0859758B1 (es) |
JP (1) | JPH11507039A (es) |
CN (1) | CN1068870C (es) |
AT (1) | ATE207893T1 (es) |
BR (1) | BR9609141A (es) |
CA (1) | CA2220490A1 (es) |
DE (1) | DE69616582T2 (es) |
ES (1) | ES2162062T3 (es) |
MX (1) | MX9709469A (es) |
WO (1) | WO1996039381A1 (es) |
ZA (1) | ZA964262B (es) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1331844C (zh) * | 2006-03-30 | 2007-08-15 | 重庆紫光化工有限责任公司 | 亚氨基二乙腈的制备工艺 |
CN102485711B (zh) * | 2010-12-03 | 2013-12-11 | 万华化学集团股份有限公司 | 一种n1-(2-氨乙基)-1,2-乙二胺的制备方法 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2175805A (en) * | 1937-06-08 | 1939-10-10 | Du Pont | Stabilized organic nitrile and process of making |
US2590072A (en) * | 1950-03-14 | 1952-03-18 | Hercules Powder Co Ltd | Method of preparing stabilized rosin nitriles |
NL243269A (es) * | 1958-09-12 | |||
US3328458A (en) * | 1964-09-10 | 1967-06-27 | Universal Oil Prod Co | Purification of nitriles |
US3515742A (en) * | 1967-05-08 | 1970-06-02 | Grace W R & Co | Adiabatic process for preparing aminonitriles using heat recycle |
US3504011A (en) * | 1967-08-07 | 1970-03-31 | Grace W R & Co | Process for preparing nitrilotriacetonitrile |
GB1223790A (en) * | 1969-12-17 | 1971-03-03 | Ugine Kuhlmann | Improvements relating to the purification of nitriles |
US3988360A (en) * | 1973-11-15 | 1976-10-26 | W. R. Grace & Co. | Process for preparing iminodiacetonitrile |
US4235808A (en) * | 1978-09-01 | 1980-11-25 | Phillips Petroleum Company | Purification of unsaturated dinitriles by contacting with chi-alumina prior to hydrogenation |
US4560516A (en) * | 1981-12-21 | 1985-12-24 | Ciba-Geigy Corporation | Process for the production of ethylenediamine tetraacetonitrile |
DE3638011A1 (de) * | 1986-11-07 | 1988-05-11 | Basf Ag | Verfahren zur herstellung von 4-pentensaeureestern |
US4895971A (en) * | 1988-10-31 | 1990-01-23 | W. R. Grace & Co.-Conn. | Process for the production of iminodiacetonitrile |
JP2520458B2 (ja) * | 1988-11-09 | 1996-07-31 | 三井東圧化学株式会社 | アミノアセトニトリル類の安定化法 |
US5097072A (en) * | 1990-02-05 | 1992-03-17 | W.R. Grace & Co.-Conn. | Preparation of polyamines |
-
1995
- 1995-06-06 US US08/466,095 patent/US5616772A/en not_active Expired - Fee Related
-
1996
- 1996-05-27 ZA ZA964262A patent/ZA964262B/xx unknown
- 1996-05-31 WO PCT/US1996/008234 patent/WO1996039381A1/en active IP Right Grant
- 1996-05-31 ES ES96916891T patent/ES2162062T3/es not_active Expired - Lifetime
- 1996-05-31 BR BR9609141A patent/BR9609141A/pt not_active Application Discontinuation
- 1996-05-31 DE DE69616582T patent/DE69616582T2/de not_active Expired - Fee Related
- 1996-05-31 EP EP96916891A patent/EP0859758B1/en not_active Expired - Lifetime
- 1996-05-31 EP EP00109732A patent/EP1031557A3/en not_active Withdrawn
- 1996-05-31 CA CA002220490A patent/CA2220490A1/en not_active Abandoned
- 1996-05-31 JP JP9500923A patent/JPH11507039A/ja active Pending
- 1996-05-31 CN CN96194569A patent/CN1068870C/zh not_active Expired - Fee Related
- 1996-05-31 EP EP00109734A patent/EP1031558A3/en not_active Ceased
- 1996-05-31 EP EP00109733A patent/EP1031562A3/en not_active Withdrawn
- 1996-05-31 MX MX9709469A patent/MX9709469A/es unknown
- 1996-05-31 AT AT96916891T patent/ATE207893T1/de active
Also Published As
Publication number | Publication date |
---|---|
BR9609141A (pt) | 1999-02-23 |
EP1031562A2 (en) | 2000-08-30 |
CA2220490A1 (en) | 1996-12-12 |
ATE207893T1 (de) | 2001-11-15 |
EP0859758B1 (en) | 2001-10-31 |
EP1031557A2 (en) | 2000-08-30 |
EP0859758A4 (es) | 1998-09-02 |
EP0859758A1 (en) | 1998-08-26 |
WO1996039381A1 (en) | 1996-12-12 |
DE69616582T2 (de) | 2002-07-11 |
EP1031558A2 (en) | 2000-08-30 |
ZA964262B (en) | 1996-08-26 |
JPH11507039A (ja) | 1999-06-22 |
CN1068870C (zh) | 2001-07-25 |
MX9709469A (es) | 1998-02-28 |
EP1031557A3 (en) | 2000-09-06 |
CN1187187A (zh) | 1998-07-08 |
EP1031558A3 (en) | 2000-09-06 |
EP1031562A3 (en) | 2000-09-06 |
DE69616582D1 (de) | 2001-12-06 |
US5616772A (en) | 1997-04-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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