Ziegler-natta—metallocene dual catalyst systems with activator-supports
US-9540457-B1 · Jan 10, 2017 · US
US12275679B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12275679-B2 |
| Application number | US-202418659092-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 9, 2024 |
| Priority date | Sep 14, 2020 |
| Publication date | Apr 15, 2025 |
| Grant date | Apr 15, 2025 |
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
What the patent document calls the invention.
A short plain-language summary of the technical disclosure.
Who owns or filed the patent and who is credited as inventor.
Filing, priority, publication, and grant dates set the timeline.
The legal scope of protection — read this for what is actually claimed.
Technology tags used to group this patent with similar filings.
Prior art links and similar publications in this corpus.
Official abstract text for this publication.
Processes for converting a hydrocarbon reactant into an alcohol compound and/or a carbonyl compound are disclosed in which the hydrocarbon reactant and a supported transition metal catalyst—containing molybdenum, tungsten, or vanadium—are irradiated with a light beam at a wavelength in the UV-visible spectrum, optionally in an oxidizing atmosphere, to form a reduced transition metal catalyst, followed by hydrolyzing the reduced transition metal catalyst to form a reaction product containing the alcohol compound and/or the carbonyl compound.
Opening claim text (preview).
We claim: 1. A supported transition metal catalyst comprising: a solid support; and from 0.01 to 50 wt. % of a transition metal comprising molybdenum, tungsten, vanadium, or a combination thereof, based on the weight of the catalyst; wherein: at least one bonding site on the transition metal has a ligand characterized by the following formula: —O-Hydrocarbon group; and a molar ratio of the hydrocarbon group to transition metal is in a range from 0.25:1 to 2:1. 2. The catalyst of claim 1 , wherein: the supported transition metal catalyst comprises from 0.1 to 5 wt. % of transition metal, based on the weight of the supported transition metal catalyst. 3. The catalyst of claim 1 , wherein the solid support comprises a solid oxide, a chemically-treated solid oxide, a zeolite, or any combination thereof. 4. The catalyst of claim 1 , wherein the transition metal comprises molybdenum. 5. The catalyst of claim 1 , wherein the transition metal comprises tungsten. 6. The catalyst of claim 1 , wherein the transition metal comprises vanadium. 7. The catalyst of claim 1 , wherein the solid support is a silica, a silica-coated alumina, or a combination thereof. 8. The catalyst of claim 1 , wherein the supported transition metal catalyst comprises from 0.1 to 15 wt. % of transition metal, based on the weight of the supported transition metal catalyst. 9. The catalyst of claim 8 , wherein the molar ratio of the hydrocarbon group to transition metal is in a range from 0.5:1 to 1.5:1. 10. The catalyst of claim 9 , wherein the solid support comprises a silica, a silica-coated alumina, or a combination thereof. 11. The catalyst of claim 8 , wherein the solid support is a solid oxide, a chemically-treated solid oxide, a zeolite, or any combination thereof. 12. The catalyst of claim 11 , wherein the transition metal comprises molybdenum. 13. The catalyst of claim 11 , wherein the transition metal comprises tungsten. 14. The catalyst of claim 11 , wherein the transition metal comprises vanadium. 15. A supported transition metal catalyst comprising: a solid support; and from 0.1 to 5 wt. % of a transition metal comprising molybdenum, tungsten, vanadium, or a combination thereof, based on the weight of the catalyst; wherein: at least one bonding site on the transition metal has a ligand characterized by one of the following formulas: —O-Hydrocarbon group or —O-Halogenated hydrocarbon group. 16. The catalyst of claim 15 , wherein the solid support comprises a solid oxide, a chemically-treated solid oxide, a zeolite, or any combination thereof. 17. The catalyst of claim 16 , wherein the transition metal comprises molybdenum. 18. The catalyst of claim 16 , wherein the transition metal comprises tungsten. 19. The catalyst of claim 16 , wherein the transition metal comprises vanadium. 20. The catalyst of claim 15 , wherein the solid support comprises a silica, a silica-coated alumina, or a combination thereof. 21. The catalyst of claim 20 , wherein the transition metal comprises molybdenum. 22. The catalyst of claim 20 , wherein the transition metal comprises tungsten. 23. The catalyst of claim 20 , wherein the transition metal comprises vanadium. 24. A supported transition metal catalyst comprising: a solid support; and from 0.01 to 50 wt. % of a transition metal comprising molybdenum, tungsten, vanadium, or a combination thereof, based on the weight of the catalyst; wherein: at least one bonding site on the transition metal has a ligand characterized by the following formula: —O-Halogenated hydrocarbon group. 25. The catalyst of claim 24 , wherein the solid support comprises a solid oxide, a chemically-treated solid oxide, a zeolite, or any combination thereof. 26. The catalyst of claim 25 , wherein the transition metal comprises molybdenum. 27. The catalyst of claim 25 , wherein the transition metal comprises tungsten. 28. The catalyst of claim 25 , wherein the transition metal comprises vanadium. 29. The catalyst of claim 24 , wherein the supported transition metal catalyst comprises from 0.1 to 15 wt. % of transition metal, based on the weight of the supported transition metal catalyst. 30. The catalyst of claim 29 , wherein the solid support comprises a silica, a silica-coated alumina, or a combination thereof.
more than 1.0 ml/g · CPC title
0.5-1.0 ml/g · CPC title
less than 0.5 ml/g · CPC title
more than 1000 m2/g · CPC title
500-1000 m2/g · CPC title
Related publications grouped by family.
Answers are generated from the same data shown on this page.