CH457394A - Verfahren zum Reinigen von Benzoesäure - Google Patents
Verfahren zum Reinigen von BenzoesäureInfo
- Publication number
- CH457394A CH457394A CH462865A CH462865A CH457394A CH 457394 A CH457394 A CH 457394A CH 462865 A CH462865 A CH 462865A CH 462865 A CH462865 A CH 462865A CH 457394 A CH457394 A CH 457394A
- Authority
- CH
- Switzerland
- Prior art keywords
- benzoic acid
- purifying benzoic
- purifying
- acid
- benzoic
- Prior art date
Links
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 title 2
- 239000005711 Benzoic acid Substances 0.000 title 1
- 235000010233 benzoic acid Nutrition 0.000 title 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
- C07C51/347—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups
- C07C51/36—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups by hydrogenation of carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
- C07C51/44—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation
- C07C51/445—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation by steam distillation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Crystallography & Structural Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Catalysts (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US357306A US3321382A (en) | 1964-04-03 | 1964-04-03 | Process of distilling benzoic acid with steam above 200 deg. c. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH457394A true CH457394A (de) | 1968-06-15 |
Family
ID=23405072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH462865A CH457394A (de) | 1964-04-03 | 1965-04-02 | Verfahren zum Reinigen von Benzoesäure |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3321382A (de) |
| BE (1) | BE662024A (de) |
| CH (1) | CH457394A (de) |
| DE (1) | DE1518477A1 (de) |
| ES (1) | ES311370A1 (de) |
| GB (1) | GB1028489A (de) |
| IL (1) | IL23278A (de) |
| NL (1) | NL6504252A (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1197921A (en) * | 1967-02-22 | 1970-07-08 | Ici Ltd | Process for the Purification of Mixtures of Dibasic Carboxylic Acids |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3235588A (en) * | 1966-02-15 | Purification of benzoic acid | ||
| US1686913A (en) * | 1927-10-18 | 1928-10-09 | Selden Co | Purification of benzoic acid and its derivatives |
| US2252117A (en) * | 1930-06-16 | 1941-08-12 | Monsanto Chemicals | Benzoic acid purification |
| US2317455A (en) * | 1940-06-27 | 1943-04-27 | Du Pont | Purifying benzoic acid |
| US3210416A (en) * | 1960-09-22 | 1965-10-05 | Standard Oil Co | Manufacture of benzoic acid from toluene |
| NL275616A (de) * | 1961-03-07 | |||
| US3141036A (en) * | 1961-07-27 | 1964-07-14 | Allied Chem | Cyclohexane carboxylic acid produced by hydrogenation of molten benzoic acid |
-
1964
- 1964-04-03 US US357306A patent/US3321382A/en not_active Expired - Lifetime
-
1965
- 1965-04-01 GB GB13933/65A patent/GB1028489A/en not_active Expired
- 1965-04-02 DE DE19651518477 patent/DE1518477A1/de active Pending
- 1965-04-02 CH CH462865A patent/CH457394A/de unknown
- 1965-04-02 ES ES0311370A patent/ES311370A1/es not_active Expired
- 1965-04-02 NL NL6504252A patent/NL6504252A/xx unknown
- 1965-04-02 IL IL23278A patent/IL23278A/xx unknown
- 1965-04-02 BE BE662024A patent/BE662024A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE662024A (de) | 1965-08-02 |
| ES311370A1 (es) | 1965-07-16 |
| DE1518477A1 (de) | 1969-02-20 |
| GB1028489A (en) | 1966-05-04 |
| US3321382A (en) | 1967-05-23 |
| IL23278A (en) | 1968-09-26 |
| NL6504252A (de) | 1965-10-04 |
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