GB758676A - Process for the manufacture of terephthalic acid - Google Patents
Process for the manufacture of terephthalic acidInfo
- Publication number
- GB758676A GB758676A GB3546653A GB3546653A GB758676A GB 758676 A GB758676 A GB 758676A GB 3546653 A GB3546653 A GB 3546653A GB 3546653 A GB3546653 A GB 3546653A GB 758676 A GB758676 A GB 758676A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tertiary butyl
- toluene
- terephthalic acid
- per cent
- acid
- 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
- C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
- C07C51/27—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with oxides of nitrogen or nitrogen-containing mineral acids
- C07C51/275—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with oxides of nitrogen or nitrogen-containing mineral acids of hydrocarbyl groups
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
Terephthalic acid is manufactured by a process which comprises oxidizing p-tertiary butyl toluene with nitric acid having an initial strength between 5 per cent and 50 per cent by weight at a pressure of from 100 to 600 p.s.i. and a temperature of from 150 DEG C. to 250 DEG C. In an example terephthalic and p-tertiary butyl benzoic acids are obtained by oxidizing p-tertiary butyl toluene with 30 per cent nitric acid. p-Tertiary butyl benzoic acid may be converted to terephthalic acid by further oxidation. p-Tertiary butyl toluene is obtained by reacting toluene and tertiary butyl chloride in presence of ferric chloride. Specifications 655,074, 662,139 and 662,229 are referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3546653A GB758676A (en) | 1953-12-21 | 1953-12-21 | Process for the manufacture of terephthalic acid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3546653A GB758676A (en) | 1953-12-21 | 1953-12-21 | Process for the manufacture of terephthalic acid |
Publications (1)
Publication Number | Publication Date |
---|---|
GB758676A true GB758676A (en) | 1956-10-10 |
Family
ID=10378038
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3546653A Expired GB758676A (en) | 1953-12-21 | 1953-12-21 | Process for the manufacture of terephthalic acid |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB758676A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3009953A (en) * | 1958-12-15 | 1961-11-21 | Union Oil Co | Manufacture of trimellitic acid |
US3086992A (en) * | 1958-11-21 | 1963-04-23 | Union Oil Co | Production of trimellitic acid |
US3227751A (en) * | 1961-06-09 | 1966-01-04 | Union Oil Co | Method of preparing trimellitic acid |
-
1953
- 1953-12-21 GB GB3546653A patent/GB758676A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3086992A (en) * | 1958-11-21 | 1963-04-23 | Union Oil Co | Production of trimellitic acid |
US3009953A (en) * | 1958-12-15 | 1961-11-21 | Union Oil Co | Manufacture of trimellitic acid |
US3227751A (en) * | 1961-06-09 | 1966-01-04 | Union Oil Co | Method of preparing trimellitic acid |
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