BR7208423D0 - Processo para obtencao de acido 4 4' dinitroestilbeno 2 2' dissulfonico - Google Patents
Processo para obtencao de acido 4 4' dinitroestilbeno 2 2' dissulfonicoInfo
- Publication number
- BR7208423D0 BR7208423D0 BR842372A BR842372A BR7208423D0 BR 7208423 D0 BR7208423 D0 BR 7208423D0 BR 842372 A BR842372 A BR 842372A BR 842372 A BR842372 A BR 842372A BR 7208423 D0 BR7208423 D0 BR 7208423D0
- Authority
- BR
- Brazil
- Prior art keywords
- dissulphonic
- dinitrostylbene
- obtaining
- acid
- dissulphonic acid
- Prior art date
Links
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5583871A GB1381730A (en) | 1971-12-01 | 1971-12-01 | Process for the industrial manufacture of dinitrostilbene disulphonic acid |
Publications (1)
Publication Number | Publication Date |
---|---|
BR7208423D0 true BR7208423D0 (pt) | 1973-08-23 |
Family
ID=10475023
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR842372A BR7208423D0 (pt) | 1971-12-01 | 1972-11-30 | Processo para obtencao de acido 4 4' dinitroestilbeno 2 2' dissulfonico |
Country Status (10)
Country | Link |
---|---|
JP (1) | JPS4875553A (es) |
BE (1) | BE792103A (es) |
BR (1) | BR7208423D0 (es) |
CA (1) | CA983026A (es) |
CH (1) | CH576954A5 (es) |
DE (1) | DE2258530A1 (es) |
ES (1) | ES409127A1 (es) |
FR (1) | FR2164182A5 (es) |
GB (1) | GB1381730A (es) |
IT (1) | IT973782B (es) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2916912A1 (de) * | 1979-04-26 | 1980-11-06 | Bayer Ag | Verfahren zur herstellung von 4-nitrotoluol-2-sulfonsaeure |
DE3063958D1 (en) * | 1979-06-08 | 1983-08-04 | Ciba Geigy Ag | Process for preparing 4,4'-dinitrostilbene-2,2'-disulfonic acid and its salts and its use |
DE3519552A1 (de) * | 1985-05-31 | 1986-12-04 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung von 4,4'-dinitrostilben-2,2'-disulfonsaeuresalzen |
DE3860061D1 (de) * | 1987-08-12 | 1990-05-03 | Ciba Geigy Ag | Verfahren zur herstellung von 4,4'-dinitrostilben-2,2'-disulfonsaeure. |
DE4330377A1 (de) * | 1993-09-08 | 1995-03-09 | Bayer Ag | Verfahren zur Herstellung von 4,4'-Dinitrostilben-2,2'-disulfonsäure |
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 |
CN107417581A (zh) * | 2017-08-15 | 2017-12-01 | 连云港莱亚化学有限公司 | 一种水相加压法合成dsd酸氧化中间体的方法 |
-
0
- BE BE792103D patent/BE792103A/xx unknown
-
1971
- 1971-12-01 GB GB5583871A patent/GB1381730A/en not_active Expired
-
1972
- 1972-11-22 JP JP47116713A patent/JPS4875553A/ja active Pending
- 1972-11-23 CH CH1707772A patent/CH576954A5/xx not_active IP Right Cessation
- 1972-11-27 CA CA157,523A patent/CA983026A/en not_active Expired
- 1972-11-28 FR FR7242281A patent/FR2164182A5/fr not_active Expired
- 1972-11-29 DE DE19722258530 patent/DE2258530A1/de active Pending
- 1972-11-29 IT IT5434872A patent/IT973782B/it active
- 1972-11-30 ES ES409127A patent/ES409127A1/es not_active Expired
- 1972-11-30 BR BR842372A patent/BR7208423D0/pt unknown
Also Published As
Publication number | Publication date |
---|---|
JPS4875553A (es) | 1973-10-11 |
GB1381730A (en) | 1975-01-29 |
DE2258530A1 (de) | 1973-06-07 |
FR2164182A5 (es) | 1973-07-27 |
IT973782B (it) | 1974-06-10 |
BE792103A (fr) | 1973-05-30 |
CA983026A (en) | 1976-02-03 |
ES409127A1 (es) | 1975-11-16 |
CH576954A5 (es) | 1976-06-30 |
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