DE3369968D1 - Process for the purification of benzoic acid - Google Patents
Process for the purification of benzoic acidInfo
- Publication number
- DE3369968D1 DE3369968D1 DE8383201852T DE3369968T DE3369968D1 DE 3369968 D1 DE3369968 D1 DE 3369968D1 DE 8383201852 T DE8383201852 T DE 8383201852T DE 3369968 T DE3369968 T DE 3369968T DE 3369968 D1 DE3369968 D1 DE 3369968D1
- Authority
- DE
- Germany
- Prior art keywords
- benzoic acid
- purification
- gas
- sup
- reaction product
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
-
- 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
- C07C51/487—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL8300008A NL8300008A (nl) | 1983-01-03 | 1983-01-03 | Werkwijze voor de bereiding van benzoezuur. |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3369968D1 true DE3369968D1 (en) | 1987-04-09 |
Family
ID=19841175
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8383201852T Expired DE3369968D1 (en) | 1983-01-03 | 1983-12-29 | Process for the purification of benzoic acid |
Country Status (6)
Country | Link |
---|---|
US (1) | US4539425A (de) |
EP (1) | EP0115101B1 (de) |
JP (1) | JPS59130836A (de) |
AT (1) | ATE25662T1 (de) |
DE (1) | DE3369968D1 (de) |
NL (1) | NL8300008A (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL8403559A (nl) * | 1984-11-23 | 1986-06-16 | Stamicarbon | Werkwijze en inrichting voor het zuiveren van benzoezuur. |
US4714526A (en) * | 1985-06-10 | 1987-12-22 | The University Of Rochester | Supercritical fluid extraction method for multi-component systems |
KR100437562B1 (ko) * | 1996-06-07 | 2004-10-02 | 주식회사 삼양사 | 테레프탈산제조공정에서발생되는폐기물로부터안식향산을회수하는방법 |
CN111892494A (zh) * | 2020-07-02 | 2020-11-06 | 江苏顺丰化工有限公司 | 一种苯甲酸的制备方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1380277A (en) * | 1919-12-12 | 1921-05-31 | Barrett Co | Catalytic oxidation of ortho-cresol |
US1851361A (en) * | 1927-08-08 | 1932-03-29 | Selden Co | Catalytic side chain oxidation of aromatic compounds |
US1686913A (en) * | 1927-10-18 | 1928-10-09 | Selden Co | Purification of benzoic acid and its derivatives |
BE760038A (fr) * | 1969-12-08 | 1971-05-17 | Dow Chemical Co | Purification de l'acide benzoique |
DE2460822C2 (de) * | 1974-12-21 | 1981-07-23 | Bayer Ag, 5090 Leverkusen | Gewinnung von Benzoesäure |
DE2636489C2 (de) * | 1976-08-13 | 1984-01-12 | Bayer Ag, 5090 Leverkusen | Verfahren zur Herstellung von Natriumbenzoat |
-
1983
- 1983-01-03 NL NL8300008A patent/NL8300008A/nl not_active Application Discontinuation
- 1983-12-22 US US06/564,198 patent/US4539425A/en not_active Expired - Fee Related
- 1983-12-27 JP JP58244969A patent/JPS59130836A/ja active Pending
- 1983-12-29 AT AT83201852T patent/ATE25662T1/de not_active IP Right Cessation
- 1983-12-29 DE DE8383201852T patent/DE3369968D1/de not_active Expired
- 1983-12-29 EP EP83201852A patent/EP0115101B1/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
EP0115101B1 (de) | 1987-03-04 |
EP0115101A2 (de) | 1984-08-08 |
EP0115101A3 (en) | 1984-08-29 |
JPS59130836A (ja) | 1984-07-27 |
NL8300008A (nl) | 1984-08-01 |
ATE25662T1 (de) | 1987-03-15 |
US4539425A (en) | 1985-09-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |