ES430860A1 - Ammoxidation process for preparing nitriles from m-or p-xylene - Google Patents
Ammoxidation process for preparing nitriles from m-or p-xyleneInfo
- Publication number
- ES430860A1 ES430860A1 ES430860A ES430860A ES430860A1 ES 430860 A1 ES430860 A1 ES 430860A1 ES 430860 A ES430860 A ES 430860A ES 430860 A ES430860 A ES 430860A ES 430860 A1 ES430860 A1 ES 430860A1
- Authority
- ES
- Spain
- Prior art keywords
- xylene
- ammonia
- oxygen
- molar ratio
- ammoxidation process
- 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
- C07C253/00—Preparation of carboxylic acid nitriles
- C07C253/24—Preparation of carboxylic acid nitriles by ammoxidation of hydrocarbons or substituted hydrocarbons
- C07C253/28—Preparation of carboxylic acid nitriles by ammoxidation of hydrocarbons or substituted hydrocarbons containing six-membered aromatic rings, e.g. styrene
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Amoxidation method, to prepare nitriles from m- and p-xylene, characterized in that it comprises reacting said xylene and ammonia at a temperature of about 375ºC to about 500ºC and in the presence of added oxygen, the molar ratio of ammonia being xylene from about 2.0: 1 to about 3: 1, the molar ratio of oxygen to xylene being from about 2.0: 1 to about 3: 1, the percentage concentration by volume of the reactant charge being about 3% to 10% xylene, 7% to 20% ammonia and 10% to 20% oxygen and the catalyst for said reaction comprising at least about 1 to 10% by weight of a vanadium bronze supported on alpha alumina. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US40496573A | 1973-10-10 | 1973-10-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES430860A1 true ES430860A1 (en) | 1977-02-01 |
Family
ID=23601751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES430860A Expired ES430860A1 (en) | 1973-10-10 | 1974-10-10 | Ammoxidation process for preparing nitriles from m-or p-xylene |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE820903A (en) |
| ES (1) | ES430860A1 (en) |
| GB (1) | GB1431033A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111569924B (en) * | 2020-04-22 | 2023-08-22 | 中南民族大学 | Special catalyst for preparing 2, 6-dichlorobenzonitrile by ammonia oxidation method and preparation method and application thereof |
-
1974
- 1974-10-10 BE BE149385A patent/BE820903A/en not_active IP Right Cessation
- 1974-10-10 ES ES430860A patent/ES430860A1/en not_active Expired
- 1974-10-10 GB GB4387474A patent/GB1431033A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1431033A (en) | 1976-04-07 |
| BE820903A (en) | 1975-04-10 |
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