IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
|
| 국제특허분류(IPC7판) |
|
| 출원번호 |
US-0881581
(1992-05-12)
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발명자
/ 주소 |
- Paparizos Christos (Willowick OH) Shaw Wilfrid G. (Lyndhurst OH)
|
| 출원인 / 주소 |
- The Standard Oil Company (Cleveland OH 02)
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| 인용정보 |
피인용 횟수 :
21 인용 특허 :
0 |
초록
▼
Olefins such as propylene and isobutylene are converted to the corresponding unsaturated nitriles, acrylonitrile, and methacrylonitrile, respectively, by reacting a mixture of the olefin, ammonia, and molecular oxygen-containing gas in the presence of a catalyst containing the oxides of molybdenum,
Olefins such as propylene and isobutylene are converted to the corresponding unsaturated nitriles, acrylonitrile, and methacrylonitrile, respectively, by reacting a mixture of the olefin, ammonia, and molecular oxygen-containing gas in the presence of a catalyst containing the oxides of molybdenum, bismuth, iron, cobalt, nickel, and chromium, and either phosphorus or antimony or mixtures thereof, and an alkali metal or mixture thereof, and optionally one element selected from the group of an alkaline earth metal, a rare earth metal, niobium, thallium, arsenic, magnesium, zinc, cadmium, vanadium, boron, calcium, tin, germanium, manganese, tungsten, tellurium, or mixtures thereof.
대표청구항
▼
In the process for the conversion of an olefin selected from the group consisting of propylene, isobutylene and mixtures thereof, to acrylonitrile, methacrylonitrile and mixtures thereof respectively by reacting in the vapor phase at a temperature of from about 300°C. to 600°C. and at an elevated pr
In the process for the conversion of an olefin selected from the group consisting of propylene, isobutylene and mixtures thereof, to acrylonitrile, methacrylonitrile and mixtures thereof respectively by reacting in the vapor phase at a temperature of from about 300°C. to 600°C. and at an elevated pressure, said olefin with a molecular oxygen-containing gas and ammonia in the presence of a oxide catalyst, the improvement comprising: conducting the reaction in the presence of a catalyst having the following empirical formula: MoaBibFecCodNieCrfXgYiZjOk wherein X is a mixture of P and Sb; Y is an alkali metal or mixture thereof; Z is an alkaline earth metal, a rare earth metal, Nb, Tl, As, Zn, Cd, V, B, Sn, Ge, Mn, W, Te or mixture thereof; and wherein a is a number from 12 to 14; b is a number from 1 to 5; c is a number from 0.5 to 5; d and e are numbers from 0.1 to 6; f is a number from 0.1 to 4; g is a number from 0.1 to 4; i is a number from 0.1 to 2; j is a number from 0 to 3; and k is a number determined by the valence requirements of the other elements present.
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