IT987455B - Procedimento per purificare p nitrofenolo - Google Patents
Procedimento per purificare p nitrofenoloInfo
- Publication number
- IT987455B IT987455B IT24108/73A IT2410873A IT987455B IT 987455 B IT987455 B IT 987455B IT 24108/73 A IT24108/73 A IT 24108/73A IT 2410873 A IT2410873 A IT 2410873A IT 987455 B IT987455 B IT 987455B
- Authority
- IT
- Italy
- Prior art keywords
- nitrophenol
- cooling
- water
- crystals
- separating
- Prior art date
Links
- BTJIUGUIPKRLHP-UHFFFAOYSA-N 4-nitrophenol Chemical compound OC1=CC=C([N+]([O-])=O)C=C1 BTJIUGUIPKRLHP-UHFFFAOYSA-N 0.000 title abstract 6
- 238000001816 cooling Methods 0.000 abstract 3
- 239000013078 crystal Substances 0.000 abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 3
- IQUPABOKLQSFBK-UHFFFAOYSA-N 2-nitrophenol Chemical compound OC1=CC=CC=C1[N+]([O-])=O IQUPABOKLQSFBK-UHFFFAOYSA-N 0.000 abstract 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 abstract 1
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 238000006396 nitration reaction Methods 0.000 abstract 1
- RBXVOQPAMPBADW-UHFFFAOYSA-N nitrous acid;phenol Chemical class ON=O.OC1=CC=CC=C1 RBXVOQPAMPBADW-UHFFFAOYSA-N 0.000 abstract 1
- 238000000746 purification Methods 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 abstract 1
- 239000004289 sodium hydrogen sulphite Substances 0.000 abstract 1
- 238000001256 steam distillation Methods 0.000 abstract 1
- 238000003756 stirring Methods 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C201/00—Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
- C07C201/06—Preparation of nitro compounds
- C07C201/16—Separation; Purification; Stabilisation; Use of additives
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C201/00—Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
- C07C201/06—Preparation of nitro compounds
- C07C201/08—Preparation of nitro compounds by substitution of hydrogen atoms by nitro groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C205/00—Compounds containing nitro groups bound to a carbon skeleton
- C07C205/13—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by hydroxy groups
- C07C205/20—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by hydroxy groups having nitro groups and hydroxy groups bound to carbon atoms of six-membered aromatic rings
- C07C205/21—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by hydroxy groups having nitro groups and hydroxy groups bound to carbon atoms of six-membered aromatic rings having nitro groups and hydroxy groups bound to carbon atoms of the same non-condensed six-membered aromatic ring
- C07C205/22—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by hydroxy groups having nitro groups and hydroxy groups bound to carbon atoms of six-membered aromatic rings having nitro groups and hydroxy groups bound to carbon atoms of the same non-condensed six-membered aromatic ring having one nitro groups bound to the ring
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7217254A FR2185063A5 (OSRAM) | 1972-05-15 | 1972-05-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IT987455B true IT987455B (it) | 1975-02-20 |
Family
ID=9098502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT24108/73A IT987455B (it) | 1972-05-15 | 1973-05-15 | Procedimento per purificare p nitrofenolo |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3933929A (OSRAM) |
| JP (1) | JPS5124492B2 (OSRAM) |
| BE (1) | BE799510A (OSRAM) |
| BR (1) | BR7303326D0 (OSRAM) |
| FR (1) | FR2185063A5 (OSRAM) |
| GB (1) | GB1387390A (OSRAM) |
| IT (1) | IT987455B (OSRAM) |
| NL (1) | NL7306351A (OSRAM) |
| ZA (1) | ZA733228B (OSRAM) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3109580B1 (fr) | 2020-04-27 | 2023-03-10 | Ipsomedic | Procédé de synthèse du paracétamol en continu |
| CN117049968B (zh) * | 2023-06-29 | 2025-11-18 | 上海沃凯生物技术有限公司 | 对硝基苯酚的精制方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE677461C (de) * | 1935-08-09 | 1939-06-30 | Stickstoffduenger Ag F | Herstellung von hochprozentigem Carbid |
| US2868844A (en) * | 1957-01-22 | 1959-01-13 | Ethyl Corp | Selective nitration process |
| US3510527A (en) * | 1967-05-18 | 1970-05-05 | Hercules Inc | Preparation of p-nitrophenols |
| US3752858A (en) * | 1970-04-13 | 1973-08-14 | Ethyl Corp | Phenol nitration process |
-
1972
- 1972-05-15 FR FR7217254A patent/FR2185063A5/fr not_active Expired
-
1973
- 1973-05-07 NL NL7306351A patent/NL7306351A/xx not_active Application Discontinuation
- 1973-05-08 BR BR3326/73A patent/BR7303326D0/pt unknown
- 1973-05-11 JP JP48051754A patent/JPS5124492B2/ja not_active Expired
- 1973-05-14 US US05/360,097 patent/US3933929A/en not_active Expired - Lifetime
- 1973-05-14 ZA ZA733228A patent/ZA733228B/xx unknown
- 1973-05-14 BE BE131091A patent/BE799510A/xx not_active IP Right Cessation
- 1973-05-14 GB GB2288173A patent/GB1387390A/en not_active Expired
- 1973-05-15 IT IT24108/73A patent/IT987455B/it active
Also Published As
| Publication number | Publication date |
|---|---|
| US3933929A (en) | 1976-01-20 |
| BR7303326D0 (pt) | 1974-07-18 |
| GB1387390A (en) | 1975-03-19 |
| DE2324501A1 (de) | 1973-11-29 |
| BE799510A (fr) | 1973-11-14 |
| JPS4961127A (OSRAM) | 1974-06-13 |
| JPS5124492B2 (OSRAM) | 1976-07-24 |
| NL7306351A (OSRAM) | 1973-11-19 |
| FR2185063A5 (OSRAM) | 1973-12-28 |
| ZA733228B (en) | 1974-03-27 |
| DE2324501B2 (de) | 1975-07-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FR2442820A1 (fr) | Procede perfectionne pour purifier des produits organiques bromes | |
| IT987455B (it) | Procedimento per purificare p nitrofenolo | |
| FR2439766A1 (fr) | Procede perfectionne de preparation du para-aminophenol | |
| JPS5657743A (en) | Purification of crude dicyclohexylamine | |
| SU440060A1 (ru) | Способ получени хлоргидрата 3-аминогомоадамантана | |
| IT973144B (it) | Procedimento per purificare p nitrofenolo | |
| FR2299273A1 (fr) | Procede de purification d'eaux residuaires contenant des composes organiques du type anionique | |
| SU405868A1 (ru) | Способ получения n-ацилированных аминокислот | |
| SU472118A1 (ru) | Способ получени 1,2,3,4-тетрахлор -5,5-дибромциклопентадиена-1,3 | |
| FR2392930A1 (fr) | Purification du chlore par formation de cristaux d'hydrate de chlore | |
| SU412179A1 (ru) | Способ выделения бутилацетата | |
| FR795834A (fr) | Procédé d'épuration des eaux vannes et des eaux résiduaires | |
| SU393267A1 (ru) | Способ получения аминометильного производного | |
| FR43320E (fr) | Procédé d'épuration des eaux résiduaires chargées de matières organiques | |
| GB1350823A (en) | Process for purification of isobutylene oxide | |
| JPS5551704A (en) | Treating method for anhydrous sodium dithionite production filtrate | |
| US1371460A (en) | Tvmile attqttstin barbet | |
| GB420793A (en) | A process and apparatus for the production of calcium nitrate | |
| GB1433498A (en) | Purification of beta-naphthol by steam distillation- | |
| FR795290A (fr) | Procédé d'extraction et de récupération de matières fertilisantes contenues dans les vinasses de distilleries et d'épuration desdites vinasses | |
| FR803387A (fr) | Procédé d'épuration des eaux | |
| JPS53101302A (en) | Purification of organocyamic compounds | |
| ES476356A1 (es) | Procedimiento para recuperar un cloruro de acido de una mez-cla que lo contiene. | |
| GB733268A (en) | Improvements in or relating to process for purification of tyrosine | |
| GB424191A (en) | Improvements in and relating to the purification of phenols |