DE3773860D1 - Verfahren zur reinigung von oxalsaeurediamid. - Google Patents
Verfahren zur reinigung von oxalsaeurediamid.Info
- Publication number
- DE3773860D1 DE3773860D1 DE8787202424T DE3773860T DE3773860D1 DE 3773860 D1 DE3773860 D1 DE 3773860D1 DE 8787202424 T DE8787202424 T DE 8787202424T DE 3773860 T DE3773860 T DE 3773860T DE 3773860 D1 DE3773860 D1 DE 3773860D1
- Authority
- DE
- Germany
- Prior art keywords
- oxalsaeurediamid
- purifying
- range
- comprised
- diamide
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C235/00—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Removal Of Specific Substances (AREA)
- Catalysts (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8622638A IT1213401B (it) | 1986-12-11 | 1986-12-11 | Procedimento di purificazione della diamide dell'acido ossalico. |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3773860D1 true DE3773860D1 (de) | 1991-11-21 |
Family
ID=11198713
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8787202424T Expired - Fee Related DE3773860D1 (de) | 1986-12-11 | 1987-12-07 | Verfahren zur reinigung von oxalsaeurediamid. |
Country Status (8)
Country | Link |
---|---|
US (1) | US5047587A (de) |
EP (1) | EP0271161B1 (de) |
JP (1) | JPH0788340B2 (de) |
AT (1) | ATE68475T1 (de) |
DE (1) | DE3773860D1 (de) |
ES (1) | ES2028056T3 (de) |
GR (1) | GR3003018T3 (de) |
IT (1) | IT1213401B (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3618816A1 (de) * | 1986-06-04 | 1987-12-10 | Hoechst Ag | Verfahren zur verringerung des kupfersalzgehalts in oxamid |
JP4356869B2 (ja) * | 2002-03-27 | 2009-11-04 | 株式会社神戸製鋼所 | 銅合金中の晶・析出物の抽出分離方法およびこれに用いる抽出分離用液 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH348399A (fr) * | 1955-08-25 | 1960-08-31 | American Cyanamid Co | Procédé pour la préparation d'acrylamide pratiquement exempte de fer |
US3776957A (en) * | 1972-05-15 | 1973-12-04 | Nalco Chemical Co | Method for removing copper from aqueous solutions of acrylamide |
IL44209A (en) * | 1973-02-23 | 1977-03-31 | Hoechst Ag | Process for the preparation of oxamide |
DE2423538A1 (de) * | 1974-05-15 | 1975-11-27 | Hoechst Ag | Verfahren zur herstellung von oxamid |
DE2427269C2 (de) * | 1974-06-06 | 1982-12-02 | Hoechst Ag, 6000 Frankfurt | Verfahren zur Herstellung von Oxamid |
JPS5721187B2 (de) * | 1974-09-06 | 1982-05-06 | ||
JPS5936647A (ja) * | 1982-08-24 | 1984-02-28 | Asahi Chem Ind Co Ltd | オキサミドを製造する方法 |
JPS5939858A (ja) * | 1982-08-27 | 1984-03-05 | Asahi Chem Ind Co Ltd | オキサミドの製法 |
DE3618816A1 (de) * | 1986-06-04 | 1987-12-10 | Hoechst Ag | Verfahren zur verringerung des kupfersalzgehalts in oxamid |
-
1986
- 1986-12-11 IT IT8622638A patent/IT1213401B/it active
-
1987
- 1987-12-07 DE DE8787202424T patent/DE3773860D1/de not_active Expired - Fee Related
- 1987-12-07 EP EP87202424A patent/EP0271161B1/de not_active Expired - Lifetime
- 1987-12-07 ES ES198787202424T patent/ES2028056T3/es not_active Expired - Lifetime
- 1987-12-07 AT AT87202424T patent/ATE68475T1/de active
- 1987-12-08 US US07/129,843 patent/US5047587A/en not_active Expired - Fee Related
- 1987-12-10 JP JP62311136A patent/JPH0788340B2/ja not_active Expired - Lifetime
-
1991
- 1991-10-24 GR GR91401626T patent/GR3003018T3/el unknown
Also Published As
Publication number | Publication date |
---|---|
GR3003018T3 (en) | 1993-02-17 |
EP0271161A2 (de) | 1988-06-15 |
ATE68475T1 (de) | 1991-11-15 |
JPS63179852A (ja) | 1988-07-23 |
JPH0788340B2 (ja) | 1995-09-27 |
IT1213401B (it) | 1989-12-20 |
IT8622638A0 (it) | 1986-12-11 |
EP0271161A3 (en) | 1989-04-12 |
US5047587A (en) | 1991-09-10 |
ES2028056T3 (es) | 1992-07-01 |
EP0271161B1 (de) | 1991-10-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |