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Catalyst for producing isobutylene and method for producing isobutylene using the same
US9670111B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9670111-B2 |
| Application number | US-201314416924-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 18, 2013 |
| Priority date | Sep 18, 2012 |
| Publication date | Jun 6, 2017 |
| Grant date | Jun 6, 2017 |
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Abstract
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Provided are a catalyst whereby isobutylene can be produced at high yield in a lower-temperature environment, and a method for producing isobutylene using the catalyst. The catalyst for producing isobutylene is an oxide including at least one element selected from molybdenum and tungsten, and at least one element selected from tantalum, niobium, and titanium.
First claim
Opening claim text (preview).
The invention claimed is: 1. A catalyst for producing isobutylene which is an oxide consisting of tungsten and at least one element selected from a group B Group B: tantalum, niobium, and titanium. 2. The catalyst for producing isobutylene according to claim 1 , wherein the oxide is a complex oxide. 3. The catalyst for producing isobutylene according to claim 1 , wherein a ratio (A/B) of a A of the numbers of moles of tungsten to a total B of the numbers of moles of tantalum, niobium, and titanium is from 0.1 to 10. 4. The catalyst for producing isobutylene according to claim 1 , wherein B is tantalum. 5. The catalyst for producing isobutylene according to claim 4 , wherein a ratio (A/B) of a A of the numbers of moles of tungsten to a total B of the numbers of moles of tantalum is from 1.0 to 9.0. 6. The catalyst for producing isobutylene according to claim 1 , wherein B is niobium. 7. The catalyst for producing isobutylene according to claim 6 , wherein a ratio (A/B) of a A of the numbers of moles of tungsten to a total B of the numbers of moles of niobium is from 0.25 to 4.0. 8. The catalyst for producing isobutylene according to claim 1 , wherein B is titanium. 9. The catalyst for producing isobutylene according to claim 8 , wherein a ratio (A/B) of a A of the numbers of moles of tungsten to a total B of the numbers of moles of titanium is from 2.0 to 8.0.
Assignees
Inventors
Classifications
Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof · CPC title
Silica and alumina · CPC title
Molybdenum · CPC title
Constitutive chemical elements of heterogeneous catalysts · CPC title
Tungsten · CPC title
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Frequently asked questions
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- What does patent US9670111B2 cover?
- Provided are a catalyst whereby isobutylene can be produced at high yield in a lower-temperature environment, and a method for producing isobutylene using the catalyst. The catalyst for producing isobutylene is an oxide including at least one element selected from molybdenum and tungsten, and at least one element selected from tantalum, niobium, and titanium.
- Who is the assignee on this patent?
- Nat Univ Corp Hokkaido Univ, Mitsubishi Rayon Co
- What technology area does this patent fall under?
- Primary CPC classification C07C1/24. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jun 06 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).