CS268849B2 - Method of 4,4-dinitrostilbene-2,2-disulphonic acid production - Google Patents
Method of 4,4-dinitrostilbene-2,2-disulphonic acid production Download PDFInfo
- Publication number
- CS268849B2 CS268849B2 CS883292A CS329288A CS268849B2 CS 268849 B2 CS268849 B2 CS 268849B2 CS 883292 A CS883292 A CS 883292A CS 329288 A CS329288 A CS 329288A CS 268849 B2 CS268849 B2 CS 268849B2
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- ammonia
- water
- nitrotoluene
- mixture
- sulfonic acid
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C309/00—Sulfonic acids; Halides, esters, or anhydrides thereof
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)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH3098/87A CH672785A5 (en) | 1987-08-12 | 1987-08-12 | 4,4-di:nitro-stilbene 2,2-di:sulphonic acid or salt prodn. |
| CH422887 | 1987-10-29 | ||
| CH114288 | 1988-03-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CS329288A2 CS329288A2 (en) | 1989-08-14 |
| CS268849B2 true CS268849B2 (en) | 1990-04-11 |
Family
ID=27172734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS883292A CS268849B2 (en) | 1987-08-12 | 1988-05-16 | Method of 4,4-dinitrostilbene-2,2-disulphonic acid production |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US5041632A (es) |
| EP (1) | EP0305648B1 (es) |
| JP (1) | JP2512532B2 (es) |
| AR (1) | AR245692A1 (es) |
| AT (1) | ATE51398T1 (es) |
| AU (1) | AU608009B2 (es) |
| BR (1) | BR8802886A (es) |
| CA (1) | CA1331198C (es) |
| CS (1) | CS268849B2 (es) |
| DE (1) | DE3860061D1 (es) |
| ES (1) | ES2015100B3 (es) |
| MX (1) | MX168910B (es) |
| PL (1) | PL159213B1 (es) |
| YU (1) | YU96988A (es) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4330377A1 (de) * | 1993-09-08 | 1995-03-09 | Bayer Ag | Verfahren zur Herstellung von 4,4'-Dinitrostilben-2,2'-disulfonsäure |
| DE4418305A1 (de) * | 1994-05-26 | 1995-11-30 | Bayer Ag | Verfahren zur Herstellung von 4.4'-Dinitrostilben-2.2'-disulfonsäure und ihren Salzen |
| US6269757B1 (en) | 2000-08-03 | 2001-08-07 | Lauren J. Kiest | Method and apparatus for delivering fertilizer to the soil |
| CN102351748B (zh) * | 2011-08-22 | 2013-08-21 | 山西阳煤丰喜肥业(集团)有限责任公司 | 一种dsd酸生产过程中的dns钠盐的制备方法 |
| CN106146357B (zh) * | 2015-04-14 | 2017-12-26 | 上海合丽亚日化技术有限公司 | 一种dsd酸的制备方法 |
| CN108017564A (zh) * | 2017-12-22 | 2018-05-11 | 江苏淮河化工有限公司 | 一种溶剂法制备dns酸 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE106961C (es) * | ||||
| DE113514C (es) * | ||||
| BE792103A (fr) * | 1971-12-01 | 1973-05-30 | Clayton Aniline Co Ltd | Nouveau procede de fabrication de l'acide dinitrostilbene disulfonique a l'echelle industrielle |
| EP0026154B1 (de) * | 1979-06-08 | 1983-06-29 | Ciba-Geigy Ag | Verfahren zur Herstellung von 4,4'-Dinitrostilben-2,2'-disulfonsäure und deren Salzen und deren Verwendung |
| JPS59167560A (ja) * | 1983-03-14 | 1984-09-21 | Nippon Kayaku Co Ltd | ４，４′−ジニトロスチルベン−２，２′−ジスルホン酸又はその塩の製造法 |
| DE3519552A1 (de) * | 1985-05-31 | 1986-12-04 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung von 4,4'-dinitrostilben-2,2'-disulfonsaeuresalzen |
| DD240200A1 (de) * | 1985-08-12 | 1986-10-22 | Bitterfeld Chemie | Verfahren zur herstellung von 4,4'-dinitrostilben-2,2'-disulfonsaeure i |
-
1988
- 1988-05-10 ES ES88107523T patent/ES2015100B3/es not_active Expired - Lifetime
- 1988-05-10 DE DE8888107523T patent/DE3860061D1/de not_active Expired - Lifetime
- 1988-05-10 AT AT88107523T patent/ATE51398T1/de not_active IP Right Cessation
- 1988-05-10 EP EP88107523A patent/EP0305648B1/de not_active Expired - Lifetime
- 1988-05-16 CS CS883292A patent/CS268849B2/cs not_active IP Right Cessation
- 1988-05-18 YU YU00969/88A patent/YU96988A/xx unknown
- 1988-05-18 AR AR88310890A patent/AR245692A1/es active
- 1988-05-24 PL PL1988272668A patent/PL159213B1/pl unknown
- 1988-05-27 MX MX011668A patent/MX168910B/es unknown
- 1988-06-01 CA CA000568342A patent/CA1331198C/en not_active Expired - Fee Related
- 1988-06-07 AU AU17452/88A patent/AU608009B2/en not_active Ceased
- 1988-06-07 US US07/203,850 patent/US5041632A/en not_active Expired - Lifetime
- 1988-06-13 BR BR8802886A patent/BR8802886A/pt not_active IP Right Cessation
- 1988-06-20 JP JP63152103A patent/JP2512532B2/ja not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| MX168910B (es) | 1993-06-14 |
| ES2015100B3 (es) | 1990-08-01 |
| JPS6450854A (en) | 1989-02-27 |
| AR245692A1 (es) | 1994-02-28 |
| EP0305648B1 (de) | 1990-03-28 |
| BR8802886A (pt) | 1989-02-28 |
| AU1745288A (en) | 1989-02-16 |
| ATE51398T1 (de) | 1990-04-15 |
| CS329288A2 (en) | 1989-08-14 |
| EP0305648A1 (de) | 1989-03-08 |
| JP2512532B2 (ja) | 1996-07-03 |
| PL272668A1 (en) | 1989-02-20 |
| US5041632A (en) | 1991-08-20 |
| YU96988A (en) | 1989-10-31 |
| DE3860061D1 (de) | 1990-05-03 |
| CA1331198C (en) | 1994-08-02 |
| AU608009B2 (en) | 1991-03-21 |
| PL159213B1 (pl) | 1992-11-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| IF00 | In force as of 2000-06-30 in czech republic | ||
| MM4A | Patent lapsed due to non-payment of fee |
Effective date: 20050516 |