GB1426188A - Production of carboxylic acids and/or carboxylic acid anhydrides - Google Patents
Production of carboxylic acids and/or carboxylic acid anhydridesInfo
- Publication number
- GB1426188A GB1426188A GB3063073A GB3063073A GB1426188A GB 1426188 A GB1426188 A GB 1426188A GB 3063073 A GB3063073 A GB 3063073A GB 3063073 A GB3063073 A GB 3063073A GB 1426188 A GB1426188 A GB 1426188A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aluminium
- weight
- supported catalyst
- carboxylic acid
- carboxylic
- 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
-
- 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
- B01J37/08—Heat treatment
-
- 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
-
- 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)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Furan Compounds (AREA)
- Catalysts (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
1426188 Production of carboxylic acids and/or carboxylic anhydrides BADISCHE ANILIN- & SODA-FABRIK AG 27 June 1973 [1 July 1972] 30630/73 Heading C2C [Also in Division B1] A carboxylic acid and/or carboxylic acid anhydride is produced by the catalytic air oxidation of an aromatic hydrocarbon at a temperature of from 350‹ to 500‹ C. using a supported catalyst. The supported catalyst is prepared by impregnating or spraying an inert carrier, e.g. 4 to 12 mm. spheres of a silicate of aluminium, zinc, zirconium or magnesium or of pumice or silicon carbide, with a solution or suspension of an aluminium compound in which the aluminium is present as a cation, e.g. aluminium nitrate, chloride, formate, acetate, sulphate or perchlorate until the aluminium content of the treated carrier amounts to 0À005 to 5% by wt. calculated as aluminium oxide, converting the compound at 300‹ to 800‹ C. into aluminium oxide, and coating the treated carrier with a catalytically active composition composing 1 to 30% by weight of vanadium pentoxide and 99 to 70% by weight of anatase, such that the overall vanadium pentoxide content of the supported catalyst amounts to less than 3% by weight. Exemplified is the conversion of naphthalene or o-xylene to phthalic anhydride.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19722232448 DE2232448A1 (en) | 1972-07-01 | 1972-07-01 | PROCESS FOR THE PRODUCTION OF CARBONIC ACIDS AND OR. OR CARBONIC ANHYDRIDES |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1426188A true GB1426188A (en) | 1976-02-25 |
Family
ID=5849458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3063073A Expired GB1426188A (en) | 1972-07-01 | 1973-06-27 | Production of carboxylic acids and/or carboxylic acid anhydrides |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS4951238A (en) |
| BE (1) | BE801693A (en) |
| DE (1) | DE2232448A1 (en) |
| FR (1) | FR2190797B3 (en) |
| GB (1) | GB1426188A (en) |
| IT (1) | IT994888B (en) |
-
1972
- 1972-07-01 DE DE19722232448 patent/DE2232448A1/en active Pending
-
1973
- 1973-06-14 IT IT2537673A patent/IT994888B/en active
- 1973-06-27 GB GB3063073A patent/GB1426188A/en not_active Expired
- 1973-06-28 FR FR7323674A patent/FR2190797B3/fr not_active Expired
- 1973-06-29 BE BE132933A patent/BE801693A/en unknown
- 1973-07-02 JP JP7377273A patent/JPS4951238A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR2190797B3 (en) | 1976-06-18 |
| JPS4951238A (en) | 1974-05-18 |
| FR2190797A1 (en) | 1974-02-01 |
| BE801693A (en) | 1974-01-02 |
| DE2232448A1 (en) | 1974-01-10 |
| IT994888B (en) | 1975-10-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |