GB644920A - Production of dicarboxylic acids or anhydrides thereof - Google Patents
Production of dicarboxylic acids or anhydrides thereofInfo
- Publication number
- GB644920A GB644920A GB21729/47A GB2172947A GB644920A GB 644920 A GB644920 A GB 644920A GB 21729/47 A GB21729/47 A GB 21729/47A GB 2172947 A GB2172947 A GB 2172947A GB 644920 A GB644920 A GB 644920A
- Authority
- GB
- United Kingdom
- Prior art keywords
- anhydride
- isomer
- oxidized
- per cent
- isomers
- 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
- C07C51/21—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)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Furan Compounds (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 |
---|---|
GB644920A true GB644920A (en) | 1950-10-18 |
Family
ID=26676744
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB21729/47A Expired GB644920A (en) | 1945-05-30 | 1947-08-07 | Production of dicarboxylic acids or anhydrides thereof |
Country Status (4)
Country | Link |
---|---|
US (1) | US2521466A (es) |
CH (1) | CH276716A (es) |
FR (1) | FR956759A (es) |
GB (1) | GB644920A (es) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1081878B (de) * | 1955-09-22 | 1960-05-19 | Wilhelm Schemuth | Verfahren zur Herstellung von Terephthalsaeure durch Oxydation von p-AEthyltoluol |
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/de unknown
-
1948
- 1948-02-09 US US7263A patent/US2521466A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US2521466A (en) | 1950-09-05 |
FR956759A (es) | 1950-02-07 |
CH276716A (de) | 1951-07-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB878802A (en) | Production of unsaturated aliphatic aldehydes and the corresponding acids | |
GB681455A (en) | Process for the production of aromatic dicarboxylic acids | |
ES299386A1 (es) | Procedimiento de preparación continua de ácidos aromáticos | |
US2552278A (en) | Liquid phase oxidation | |
GB655074A (en) | An improved process for the preparation of terephthalic acid | |
US1909354A (en) | Method of catalytically oxidizing aromatic compounds | |
BRPI0417617B1 (pt) | Processos de oxidação de hidrocarboneto aromático e de conversão de pseudocumeno a ácido trimelítico e sistema catalisador | |
GB644920A (en) | Production of dicarboxylic acids or anhydrides thereof | |
US2559147A (en) | Preparation of dibasic aromatic acids by oxidation | |
GB739299A (en) | Improvements in or relating to the preparation of toluic acids | |
US2928879A (en) | Oxidation of hydrocarbons with sulfur dioxides | |
ES8104178A1 (es) | Procedimiento para preparar acidos carboxilicos aromaticos por oxidacion de un hidrocarburo alcohil-aromatico | |
US2833820A (en) | Process for the preparation of isophthalic and terephthalic acids | |
US3075009A (en) | Oxidation of alkylbenzene carboxylic acids | |
US3387026A (en) | Catalytic method of preparing keto-acids | |
GB574958A (en) | Controlled catalytic oxidation of organic compounds | |
US2537568A (en) | Cis-butene oxidation | |
US2802859A (en) | Oxidation of alkylated benzenes in the presence of aliphatic hydrocarbons | |
US2501088A (en) | Catalytic oxidation of aromatic hydrocarbons in presence of nitroalkanes | |
GB742709A (en) | Improvements in the production of polycarboxylic acids | |
GB709674A (en) | Oxidation of hydrocarbons | |
US2443832A (en) | Oxidation of aromatic compounds | |
GB1429471A (en) | Process for the production of phthalic acids | |
US1982196A (en) | Manufacturing monocarboxylic acids | |
JPS5915895B2 (ja) | 芳香族カルボン酸の製造方法 |