CH276716A - Process for the production of phthalic anhydride. - Google Patents
Process for the production of phthalic anhydride.Info
- Publication number
- CH276716A CH276716A CH276716DA CH276716A CH 276716 A CH276716 A CH 276716A CH 276716D A CH276716D A CH 276716DA CH 276716 A CH276716 A CH 276716A
- Authority
- CH
- Switzerland
- Prior art keywords
- production
- phthalic anhydride
- phthalic
- anhydride
- Prior art date
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
- C07C51/21—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
- C07C51/255—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting
- C07C51/265—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting having alkyl side chains which are oxidised to carboxyl groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Furan Compounds (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US596645A US2438369A (en) | 1945-05-30 | 1945-05-30 | Production of dicarboxylic acids or anhydrides thereof |
US7263A US2521466A (en) | 1945-05-30 | 1948-02-09 | Process for producing phthalic anhydride from ortho-xylene concentrates and naphthalene |
Publications (1)
Publication Number | Publication Date |
---|---|
CH276716A true CH276716A (en) | 1951-07-31 |
Family
ID=26676744
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH276716D CH276716A (en) | 1945-05-30 | 1947-08-08 | Process for the production of phthalic anhydride. |
Country Status (4)
Country | Link |
---|---|
US (1) | US2521466A (en) |
CH (1) | CH276716A (en) |
FR (1) | FR956759A (en) |
GB (1) | GB644920A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1081878B (en) * | 1955-09-22 | 1960-05-19 | Wilhelm Schemuth | Process for the production of terephthalic acid by the oxidation of p-ethyltoluene |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2925425A (en) * | 1957-05-21 | 1960-02-16 | Celanese Corp | Oxidation of phthalide and mixtures thereof to phthalic anhydride |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2438369A (en) * | 1945-05-30 | 1948-03-23 | Callfornia Rescarch Corp | Production of dicarboxylic acids or anhydrides thereof |
-
0
- FR FR956759D patent/FR956759A/fr not_active Expired
-
1947
- 1947-08-07 GB GB21729/47A patent/GB644920A/en not_active Expired
- 1947-08-08 CH CH276716D patent/CH276716A/en unknown
-
1948
- 1948-02-09 US US7263A patent/US2521466A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1081878B (en) * | 1955-09-22 | 1960-05-19 | Wilhelm Schemuth | Process for the production of terephthalic acid by the oxidation of p-ethyltoluene |
Also Published As
Publication number | Publication date |
---|---|
FR956759A (en) | 1950-02-07 |
GB644920A (en) | 1950-10-18 |
US2521466A (en) | 1950-09-05 |
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