FR2361331A1 - Procede de preparation du benzoate de sodium par oxydation catalytique du toluene en phase liquide - Google Patents
Procede de preparation du benzoate de sodium par oxydation catalytique du toluene en phase liquideInfo
- Publication number
- FR2361331A1 FR2361331A1 FR7724956A FR7724956A FR2361331A1 FR 2361331 A1 FR2361331 A1 FR 2361331A1 FR 7724956 A FR7724956 A FR 7724956A FR 7724956 A FR7724956 A FR 7724956A FR 2361331 A1 FR2361331 A1 FR 2361331A1
- Authority
- FR
- France
- Prior art keywords
- toluene
- sodium benzoate
- preparation
- liquid phase
- catalytic oxidation
- 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.)
- Granted
Links
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 title abstract 6
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 title abstract 2
- 235000010234 sodium benzoate Nutrition 0.000 title abstract 2
- 239000004299 sodium benzoate Substances 0.000 title abstract 2
- 230000003197 catalytic effect Effects 0.000 title 1
- 239000007791 liquid phase Substances 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 230000003647 oxidation Effects 0.000 title 1
- 238000007254 oxidation reaction Methods 0.000 title 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- 150000001412 amines Chemical class 0.000 abstract 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 abstract 2
- 239000005711 Benzoic acid Substances 0.000 abstract 1
- 125000000217 alkyl group Chemical group 0.000 abstract 1
- 235000010233 benzoic acid Nutrition 0.000 abstract 1
- 125000000753 cycloalkyl group Chemical group 0.000 abstract 1
- 238000004821 distillation Methods 0.000 abstract 1
- 238000000605 extraction Methods 0.000 abstract 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 238000001256 steam distillation Methods 0.000 abstract 1
- 238000000859 sublimation Methods 0.000 abstract 1
- 230000008022 sublimation Effects 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/41—Preparation of salts of carboxylic acids
- C07C51/412—Preparation of salts of carboxylic acids by conversion of the acids, their salts, esters or anhydrides with the same carboxylic acid part
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Selon l'invention, on traite l'acide benzoïque obtenu, à chaud, par une petite quantité d'une amine de formule H2 N-R dans laquelle R représente l'hydrogène, un groupe alkyle en C1 -C4 ou cycloalkyle en C5 -C6 , ou d'un sel d'une telle amine, en procédant simultanément ou, à la suite, à une distillation ou une sublimation de manière connue en soi, on fait ensuite réagir avec de la lessive de soude et on traite par extraction au toluène et/ou par distillation à la vapeur d'eau de manière connue en soL Le benzoate de sodium obtenu conformément à l'invention répond aux exigences des pharmacopées des principales nations.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2636489A DE2636489C2 (de) | 1976-08-13 | 1976-08-13 | Verfahren zur Herstellung von Natriumbenzoat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2361331A1 true FR2361331A1 (fr) | 1978-03-10 |
| FR2361331B1 FR2361331B1 (fr) | 1983-09-23 |
Family
ID=5985377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7724956A Granted FR2361331A1 (fr) | 1976-08-13 | 1977-08-12 | Procede de preparation du benzoate de sodium par oxydation catalytique du toluene en phase liquide |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US4092353A (fr) |
| JP (1) | JPS5323943A (fr) |
| AT (1) | AT350535B (fr) |
| DE (1) | DE2636489C2 (fr) |
| FR (1) | FR2361331A1 (fr) |
| GB (1) | GB1541779A (fr) |
| IT (1) | IT1079812B (fr) |
| NL (1) | NL176360C (fr) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7614458A (nl) * | 1976-12-28 | 1978-06-30 | Stamicarbon | Werkwijze voor het verwerken van een benzylbenzoaatbevattende teer. |
| NL7903876A (nl) * | 1979-05-17 | 1980-11-19 | Stamicarbon | Werkwijze voor het bereiden van een zuiver alkali- metaalbenzoaat naast benzylalcohol. |
| NL8300009A (nl) * | 1983-01-03 | 1984-08-01 | Stamicarbon | Werkwijze voor de bereiding van farmaceutisch benzoezuur. |
| NL8300008A (nl) * | 1983-01-03 | 1984-08-01 | Stamicarbon | Werkwijze voor de bereiding van benzoezuur. |
| DE3420111A1 (de) * | 1984-05-30 | 1985-12-05 | Bayer Ag, 5090 Leverkusen | Verfahren zur reinigung von benzoesaeure |
| DE3824265A1 (de) * | 1988-07-16 | 1990-01-18 | Bayer Ag | Verfahren zur destillativen gewinnung von o-tolylsaeure |
| JP2676910B2 (ja) * | 1989-05-17 | 1997-11-17 | 三菱瓦斯化学株式会社 | 高純度０‐トルイル酸の製造法 |
| NL9000891A (nl) * | 1990-04-14 | 1991-11-01 | Stamicarbon | Werkwijze voor het zuiveren van een benzoezuur. |
| NL1016974C2 (nl) * | 2000-12-22 | 2002-06-25 | Dsm Nv | BenzoÙzuurdeeltjes. |
| WO2003063999A1 (fr) * | 2002-01-31 | 2003-08-07 | Tillin, Inc. | Procedes de traitement d'agents de conservation de categorie commerciale pour eliminer des odeurs et des gouts indesirables |
| EP2641878B8 (fr) | 2012-03-22 | 2014-12-17 | Repsol, S.A. | Récupération d'acide benzoïque et de molybdène à partir de flux de déchets aqueux générés lors de procédés d'époxydation |
| CN104447271B (zh) * | 2014-11-14 | 2016-05-25 | 复旦大学 | 一种以光照为条件醇催化合成苯甲酸的方法 |
| CN104447297B (zh) * | 2014-11-14 | 2016-05-25 | 复旦大学 | 一种以光照为条件有机胺催化合成苯甲酸的方法 |
| WO2020161848A1 (fr) | 2019-02-07 | 2020-08-13 | Ykk株式会社 | Curseur pour une fermeture à glissière cachée |
| CN111943834A (zh) * | 2020-07-02 | 2020-11-17 | 江苏顺丰化工有限公司 | 一种颗粒状苯甲酸钠及生产方法 |
| CN113277937A (zh) * | 2021-06-18 | 2021-08-20 | 常熟市滨江化工有限公司 | 一种对苯甲酸粗品进行精制的方法 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2283991A (en) * | 1939-11-25 | 1942-05-26 | American Cyanamid Co | Separation of sulphuric acid from carboxylic acids |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3235588A (en) * | 1966-02-15 | Purification of benzoic acid | ||
| US1822016A (en) * | 1930-05-28 | 1931-09-08 | Selden Co | Separation of organic acids |
| US2962361A (en) * | 1957-08-12 | 1960-11-29 | Standard Oil Co | Continuous oxidation system for producing carboxylic acids |
| NL267380A (fr) * | 1960-07-22 |
-
1976
- 1976-08-13 DE DE2636489A patent/DE2636489C2/de not_active Expired
-
1977
- 1977-07-29 US US05/820,516 patent/US4092353A/en not_active Expired - Lifetime
- 1977-08-09 GB GB33346/77A patent/GB1541779A/en not_active Expired
- 1977-08-10 IT IT50631/77A patent/IT1079812B/it active
- 1977-08-11 AT AT586077A patent/AT350535B/de not_active IP Right Cessation
- 1977-08-11 JP JP9564077A patent/JPS5323943A/ja active Granted
- 1977-08-12 FR FR7724956A patent/FR2361331A1/fr active Granted
- 1977-08-12 NL NLAANVRAGE7708933,A patent/NL176360C/xx not_active IP Right Cessation
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2283991A (en) * | 1939-11-25 | 1942-05-26 | American Cyanamid Co | Separation of sulphuric acid from carboxylic acids |
Non-Patent Citations (1)
| Title |
|---|
| EXBK/74 * |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1541779A (en) | 1979-03-07 |
| DE2636489B1 (de) | 1977-12-08 |
| IT1079812B (it) | 1985-05-13 |
| NL176360B (nl) | 1984-11-01 |
| NL7708933A (nl) | 1978-02-15 |
| DE2636489C2 (de) | 1984-01-12 |
| ATA586077A (de) | 1978-11-15 |
| FR2361331B1 (fr) | 1983-09-23 |
| AT350535B (de) | 1979-06-11 |
| JPS5323943A (en) | 1978-03-06 |
| US4092353A (en) | 1978-05-30 |
| NL176360C (nl) | 1985-04-01 |
| JPS6125013B2 (fr) | 1986-06-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |