IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0895416
(2001-07-02)
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우선권정보 |
JP-0135420 (1998-05-18) |
발명자
/ 주소 |
- Kishimoto, Nobuji
- Matsunami, Etsushige
|
출원인 / 주소 |
- Nippon Shokubai Co., Ltd.
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
2 인용 특허 :
18 |
초록
▼
Lower alkenes of from 2 to 5 carbon atoms, such as propene, are produced by the vapor phase catalytic oxidative dehydrogenation of lower alkane, such as propane, using a mixed metal oxide catalyst of formula (1) as decribed, containing manganese and at least one additional metal as essential element
Lower alkenes of from 2 to 5 carbon atoms, such as propene, are produced by the vapor phase catalytic oxidative dehydrogenation of lower alkane, such as propane, using a mixed metal oxide catalyst of formula (1) as decribed, containing manganese and at least one additional metal as essential elements, e.g., Mn 1 Sb 0.15 O x , Mn 1 P 0.2 O x , Mn 1 S 0.15 W 0.05 Cr 0.1 O x . The lower alkene may be further oxidatively dehydrogenated using a mixed metal oxide catalyst of formula (1), especially formula (2), as described, to produce a mixture of unsaturated aldehyde and unsaturated acid. The unsaturated aldehyde may be further oxidatively dehydrogenated in the vapor phase in the presence of mixed metal oxide catalyst of formula (1), especially formula (3).
대표청구항
▼
1. In a process for producing an olefin by the vapor phase oxidative dehydrogenation of alkane having from 2 to 5 carbon atoms in the presence of molecular oxygen, the improvement comprising, carrying out the vapor phase oxidative dehydrogenation in the presence of an oxidative dehydrogenation catal
1. In a process for producing an olefin by the vapor phase oxidative dehydrogenation of alkane having from 2 to 5 carbon atoms in the presence of molecular oxygen, the improvement comprising, carrying out the vapor phase oxidative dehydrogenation in the presence of an oxidative dehydrogenation catalyst comprising a multimetal mixed oxide having the formula α E 1 β E 2 γ O x (1)where Mn denotes manganese;O denotes oxygen;E 1 represents one or more metal elements selected from the group consisting of phosphorus, arsenic, antimony, boron, sulfur, selenium, tellurium, fluorine, chlorine, bromine, iodine, niobium, tantalum, tungsten, rhenium and copper;E 2 represents one or more metal elements selected from the group consisting of chromium, iron, cobalt, nickel, silver, gold, zinc, thallium, tin, lead, bismuth, lithium, sodium, potassium, rubidium, cesium, magnesium, calcium, strontium, barium, yttrium, lanthanum, cerium, neodymium, and samarium; and,α, β, γ and x denote atomic numbers of Mn, E 1 , E 2 , and oxygen, respectively, and,when α=1, β=0.01-10, γ=0-5, and x has a numerical value determined by the state of oxidation of the elements other than oxygen. 2. The process according to claim 1, wherein, in the oxidative dehydrogenation catalyst of formula (1), when α=1, β=0.02-2 and γ=0-1. 3. The process according to claim 1, wherein the oxidative dehydrogenation catalyst of formula (1) is one which is dried and fired at temperatures not higher than 300° C. 4. The process according to claim 1, wherein the oxidative dehydrogenation catalyst is supported on a refractory inorganic carrier. 5. The process according to claim 1, wherein the oxidative dehydrogenation of said alkane is carried out at a space velocity of from 300 to 30,000 hr −1 , and at a temperature of from 250 to 650°C. 6. The process according to claim 1, wherein the oxidative dehydrogenation catalyst is selected from the group consisting ofMn 1 Sb 0.15 O x , Mn 1 Sb 0.25 O x , Mn 1 B 0.1 O x , Mn 1 S 0.1 O x , Mn 1 Nb 0.05 O x , Mn 1 W 0.05 O x ,Mn 1 Re 0.05 O x , Mn 1 Cu 0.1 O x , Mn 1 Cl 0.4 O x , Mn 1 Sb 0.15 Cr 0.1 O x , Mn 1 Sb 0.15 Na 0.1 O x ,Mn 1 Sb 0.15 Mg 0.1 O x , Mn 1 Sb 0.15 Ce 0.1 O x , Mn 1 S 0.15 Cr 0.1 O x , Mn 1 Cl 0.4 Sn 0.1 O x ,Mn 1 Sb 0.15 W 0.05 Cr 0.1 O x , Mn 1 Sb 0.15 W 0.05 S 0.15 Cr 0.1 O x , andMn 1 Sb 0.15 W 0.05 Nb 0.05 Cr 0.1 O x .
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