NL7402243A - - Google Patents
Info
- Publication number
- NL7402243A NL7402243A NL7402243A NL7402243A NL7402243A NL 7402243 A NL7402243 A NL 7402243A NL 7402243 A NL7402243 A NL 7402243A NL 7402243 A NL7402243 A NL 7402243A NL 7402243 A NL7402243 A NL 7402243A
- Authority
- NL
- Netherlands
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/20—Vanadium, niobium or tantalum
- B01J23/22—Vanadium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/24—Chromium, molybdenum or tungsten
- B01J23/26—Chromium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/14—Phosphorus; Compounds thereof
- B01J27/16—Phosphorus; Compounds thereof containing oxygen, i.e. acids, anhydrides and their derivates with N, S, B or halogens without carriers or on carriers based on C, Si, Al or Zr; also salts of Si, Al and Zr
- B01J27/18—Phosphorus; Compounds thereof containing oxygen, i.e. acids, anhydrides and their derivates with N, S, B or halogens without carriers or on carriers based on C, Si, Al or Zr; also salts of Si, Al and Zr with metals other than Al or Zr
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/14—Phosphorus; Compounds thereof
- B01J27/186—Phosphorus; Compounds thereof with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J27/195—Phosphorus; Compounds thereof with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium with vanadium, niobium or tantalum
- B01J27/198—Vanadium
-
- 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
- C07C51/31—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation of cyclic compounds with ring-splitting
- C07C51/313—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation of cyclic compounds with ring-splitting with molecular oxygen
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Catalysts (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
- Furan Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE130732A BE799085A (en) | 1973-05-04 | 1973-05-04 | PROCESS FOR PREPARING ANHYDRIDES OF POLYCARBOXYLIC AROMATIC ACIDS, |
Publications (1)
Publication Number | Publication Date |
---|---|
NL7402243A true NL7402243A (en) | 1974-11-06 |
Family
ID=3841909
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL7402243A NL7402243A (en) | 1973-05-04 | 1974-02-19 |
Country Status (9)
Country | Link |
---|---|
US (1) | US3925425A (en) |
JP (1) | JPS5013349A (en) |
BE (1) | BE799085A (en) |
CA (1) | CA1023373A (en) |
DE (1) | DE2411294A1 (en) |
FR (1) | FR2228048A1 (en) |
GB (1) | GB1411212A (en) |
NL (1) | NL7402243A (en) |
ZA (1) | ZA74918B (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4228038A (en) * | 1979-07-24 | 1980-10-14 | Tioxide Group Limited | Method for the preparation of catalyst of vanadium pentoxide on substrate of titanium dioxide |
GB2084042B (en) * | 1980-09-16 | 1984-05-10 | Tioxide Group Ltd | Method for the production of monolayer catalysts |
JPS6128456A (en) * | 1984-07-18 | 1986-02-08 | Nippon Shokubai Kagaku Kogyo Co Ltd | Catalyst for preparing pyromellitic anhydride |
JPS6125642A (en) * | 1984-07-17 | 1986-02-04 | Nippon Shokubai Kagaku Kogyo Co Ltd | Catalyst for manufacturing pyromellitic anhydride |
CA1261860A (en) * | 1984-05-21 | 1989-09-26 | Yoshiyuki Nakanishi | Method for the preparation of pyromellitic acid or its anhydride |
EP0405508A3 (en) * | 1989-06-27 | 1992-01-15 | Nippon Steel Chemical Co. Ltd. | Process for producing pyromellitic dianhydride |
US5225572A (en) * | 1989-06-27 | 1993-07-06 | Nippon Steel Chemical Co., Ltd. | Process for producing pyromellitic dianhydride |
CN115925716A (en) * | 2021-08-24 | 2023-04-07 | 中国石油化工股份有限公司 | Preparation method of pyromellitic dianhydride |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3107223A (en) * | 1959-05-06 | 1963-10-15 | Koppers Pittsburgh Company | Vanadium pentoxide catalyst and method of preparation thereof |
DE1162348B (en) * | 1961-04-28 | 1964-02-06 | Basf Ag | Process for the production of phthalic anhydride |
NL6509701A (en) * | 1964-07-28 | 1966-01-31 | ||
DE1250806B (en) * | 1964-09-22 | 1967-09-28 | Nippon Shokubai Kagaku Kogyo Co. Ltd., Osaka (Japan) | Process for the production of phthalic anhydride |
US3721683A (en) * | 1969-06-13 | 1973-03-20 | Teijin Chemicals Ltd | Process for the preparation of aromatic carboxylic anhydrides |
-
1973
- 1973-05-04 BE BE130732A patent/BE799085A/en unknown
- 1973-10-26 US US410275A patent/US3925425A/en not_active Expired - Lifetime
-
1974
- 1974-02-02 ZA ZA00740918A patent/ZA74918B/en unknown
- 1974-02-19 NL NL7402243A patent/NL7402243A/xx not_active Application Discontinuation
- 1974-02-19 CA CA192,979A patent/CA1023373A/en not_active Expired
- 1974-02-28 GB GB915374A patent/GB1411212A/en not_active Expired
- 1974-03-09 DE DE2411294A patent/DE2411294A1/en active Pending
- 1974-03-27 FR FR7410453A patent/FR2228048A1/fr not_active Withdrawn
- 1974-04-26 JP JP49046706A patent/JPS5013349A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
US3925425A (en) | 1975-12-09 |
FR2228048A1 (en) | 1974-11-29 |
JPS5013349A (en) | 1975-02-12 |
CA1023373A (en) | 1977-12-27 |
ZA74918B (en) | 1975-05-28 |
BE799085A (en) | 1973-08-31 |
GB1411212A (en) | 1975-10-22 |
DE2411294A1 (en) | 1974-11-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BV | The patent application has lapsed |