IT990072B - Procedimento per produrre anidride ftalica - Google Patents
Procedimento per produrre anidride ftalicaInfo
- Publication number
- IT990072B IT990072B IT51736/73A IT5173673A IT990072B IT 990072 B IT990072 B IT 990072B IT 51736/73 A IT51736/73 A IT 51736/73A IT 5173673 A IT5173673 A IT 5173673A IT 990072 B IT990072 B IT 990072B
- Authority
- IT
- Italy
- Prior art keywords
- dioxide
- procedure
- producing phthalic
- phthalic
- producing
- 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
-
- 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
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0215—Coating
- B01J37/0219—Coating the coating containing organic compounds
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0215—Coating
- B01J37/0221—Coating of particles
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)
- Catalysts (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2238067A DE2238067C3 (de) | 1972-08-02 | 1972-08-02 | Verfahren zur Herstellung von Phthalsäureanhydrid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IT990072B true IT990072B (it) | 1975-06-20 |
Family
ID=5852500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT51736/73A IT990072B (it) | 1972-08-02 | 1973-07-31 | Procedimento per produrre anidride ftalica |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3898249A (it) |
| JP (1) | JPS5142096B2 (it) |
| DE (1) | DE2238067C3 (it) |
| IT (1) | IT990072B (it) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2546268C3 (de) * | 1975-10-16 | 1983-11-24 | Basf Ag, 6700 Ludwigshafen | Verfahren zur Herstellung von Phthalsäureanhydrid aus o-Xylol oder Naphthalin |
| JPS5346192U (it) * | 1976-09-24 | 1978-04-19 | ||
| JPS573106Y2 (it) * | 1976-10-12 | 1982-01-20 | ||
| JPS603307B2 (ja) | 1978-11-29 | 1985-01-26 | 株式会社日本触媒 | 無水フタル酸の製造方法 |
| US4397768A (en) * | 1981-02-26 | 1983-08-09 | Oxidaciones Organicas, C.A. "Oxidor" | Supported catalyst for the preparation of phthalic anhydride |
| IT1226043B (it) * | 1981-06-16 | 1990-12-10 | Italiana Carbochimica | Procedimento per l'ottenimento di anidride ftalica partendo da ortoxilolo, naftalina e loro miscele per ossidazione in presenza di un catalizzatore specifico e catalizzatore ottenuto con la messa in opera del procedimento |
| DE19823275A1 (de) | 1998-05-26 | 1999-12-02 | Basf Ag | Verfahren zur Herstellung von Phthalsäureanhydrid durch katalytische Gasphasenoxidation von x-Xylol-/-Naphthalin-Gemischen |
| DE10323818A1 (de) | 2003-05-23 | 2004-12-09 | Basf Ag | Katalysatorsysteme zur Herstellung von Phthalsäureanhydrid |
| DE10335346A1 (de) * | 2003-08-01 | 2005-02-24 | Basf Ag | Katalysator für Gasphasenoxidationen |
| DE10344846A1 (de) | 2003-09-26 | 2005-04-14 | Basf Ag | Gasphasenoxidationskatalysator mit definierter Vanadiumoxid-Teilchengrößenverteilung |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2142678A (en) * | 1934-12-31 | 1939-01-03 | Solvay Process Co | Preparation of phthalic anhydride |
| DE2106796C3 (de) * | 1971-02-12 | 1981-09-24 | Wacker-Chemie GmbH, 8000 München | Verfahren zur Herstellung Festbettkatalysatoren mit einem Überzug aus Vanadiumpentoxid und Titandioxid |
-
1972
- 1972-08-02 DE DE2238067A patent/DE2238067C3/de not_active Expired
-
1973
- 1973-07-31 IT IT51736/73A patent/IT990072B/it active
- 1973-08-01 US US384678A patent/US3898249A/en not_active Expired - Lifetime
- 1973-08-02 JP JP48087184A patent/JPS5142096B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3898249A (en) | 1975-08-05 |
| DE2238067A1 (de) | 1974-02-14 |
| JPS4955638A (it) | 1974-05-30 |
| DE2238067C3 (de) | 1979-04-12 |
| JPS5142096B2 (it) | 1976-11-13 |
| DE2238067B2 (de) | 1978-08-03 |
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