BR9202583A - Processo de purificacao de indigo - Google Patents
Processo de purificacao de indigoInfo
- Publication number
- BR9202583A BR9202583A BR929202583A BR9202583A BR9202583A BR 9202583 A BR9202583 A BR 9202583A BR 929202583 A BR929202583 A BR 929202583A BR 9202583 A BR9202583 A BR 9202583A BR 9202583 A BR9202583 A BR 9202583A
- Authority
- BR
- Brazil
- Prior art keywords
- purification process
- indigo
- indigo purification
- purification
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B7/00—Indigoid dyes
- C09B7/02—Bis-indole indigos
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Indole Compounds (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/731,657 US5116996A (en) | 1991-07-17 | 1991-07-17 | Purification of indigo |
Publications (1)
Publication Number | Publication Date |
---|---|
BR9202583A true BR9202583A (pt) | 1993-03-16 |
Family
ID=24940442
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR929202583A BR9202583A (pt) | 1991-07-17 | 1992-07-10 | Processo de purificacao de indigo |
Country Status (8)
Country | Link |
---|---|
US (1) | US5116996A (pt) |
EP (1) | EP0523532B1 (pt) |
JP (1) | JPH05202300A (pt) |
CN (1) | CN1043651C (pt) |
BR (1) | BR9202583A (pt) |
DE (1) | DE59208937D1 (pt) |
ES (1) | ES2107483T3 (pt) |
TW (1) | TW224125B (pt) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4220804A1 (de) * | 1992-06-25 | 1994-01-05 | Basf Ag | Verfahren zur Reinigung von Indigo |
DE4336032A1 (de) * | 1993-10-22 | 1995-04-27 | Basf Ag | Verfahren zur Reinigung von Indigo |
CN103387530A (zh) * | 2012-05-09 | 2013-11-13 | 李立奇 | 5-溴吲哚的制备方法 |
CN103556420B (zh) * | 2013-10-30 | 2015-11-18 | 江苏泰丰化工有限公司 | 一种从靛蓝后处理洗涤过程中回收混合碱液的方法 |
EP3665230A1 (en) * | 2017-08-11 | 2020-06-17 | Archroma IP GmbH | Method and device for making aniline-free leucoindigo salt solutions |
ES2900511T3 (es) * | 2018-05-18 | 2022-03-17 | Archroma Ip Gmbh | Método para preparar soluciones de sal de leucoíndigo sin anilina |
BR102019025172A2 (pt) | 2019-11-28 | 2021-06-08 | Bann Química Ltda. | processo de purificação de soluções de sal de leucoíndigo e uso de um gás inerte |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2734951C2 (de) * | 1977-08-03 | 1979-08-09 | Basf Farben + Fasern Ag, 2000 Hamburg | Verfahren zur Nachbehandlung von 4,4', 7,7'-Tetrachlorthioindigo |
JPS54124027A (en) * | 1978-03-22 | 1979-09-26 | Mitsui Petrochem Ind Ltd | Preparation of indigo |
DE3101883A1 (de) * | 1981-01-22 | 1982-08-26 | Basf Ag, 6700 Ludwigshafen | Verfahren zur herstellung von 4,4',7,7'-tetrachlorthioindigo |
CA1334097C (en) * | 1988-03-17 | 1995-01-24 | Usaji Takaki | Process for the preparation of indigo compounds |
-
1991
- 1991-07-17 US US07/731,657 patent/US5116996A/en not_active Expired - Lifetime
-
1992
- 1992-06-03 TW TW081104381A patent/TW224125B/zh active
- 1992-07-08 EP EP92111596A patent/EP0523532B1/de not_active Expired - Lifetime
- 1992-07-08 DE DE59208937T patent/DE59208937D1/de not_active Expired - Lifetime
- 1992-07-08 ES ES92111596T patent/ES2107483T3/es not_active Expired - Lifetime
- 1992-07-10 BR BR929202583A patent/BR9202583A/pt not_active IP Right Cessation
- 1992-07-15 JP JP4187817A patent/JPH05202300A/ja not_active Withdrawn
- 1992-07-17 CN CN92105910A patent/CN1043651C/zh not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE59208937D1 (de) | 1997-11-06 |
CN1043651C (zh) | 1999-06-16 |
CN1068581A (zh) | 1993-02-03 |
TW224125B (pt) | 1994-05-21 |
ES2107483T3 (es) | 1997-12-01 |
EP0523532B1 (de) | 1997-10-01 |
EP0523532A2 (de) | 1993-01-20 |
EP0523532A3 (en) | 1994-11-17 |
JPH05202300A (ja) | 1993-08-10 |
US5116996A (en) | 1992-05-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FF | Decision: intention to grant | ||
FG9A | Patent or certificate of addition granted | ||
B25A | Requested transfer of rights approved |
Owner name: DYSTAR TEXTILFARBEN GMBH AND CO. DEUTSCHLAND KG (D Free format text: TRANSFERIDO DE: BASF AKTIENGESELLSCHAFT |
|
B21A | Patent or certificate of addition expired [chapter 21.1 patent gazette] |
Free format text: PATENTE EXTINTA EM 10/07/2012 |