Agglomerated ODH catalyst
US-10661256-B2 · May 26, 2020 · US
Calcination process to produce enhanced ODH catalyst
US11014072B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11014072-B2 |
| Application number | US-201916358802-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 20, 2019 |
| Priority date | Mar 26, 2018 |
| Publication date | May 25, 2021 |
| Grant date | May 25, 2021 |
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- Title
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Abstract
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Mixed metal oxide catalysts having an amorphous content of not less than 40 wt. % are prepared by calcining the catalyst precursor fully or partially enclosed by a porous material having a melting temperature greater than 600° C. in an inert container including heating the catalyst precursor at a rate from 0.5 to 10° C. per minute from room temperature to a temperature from 370° C. to 540° C. under a stream of pre heated gas chosen from steam and inert gas and mixtures thereof at a pressure of greater than or equal to 1 psig having a temperature from 300° C. to 540° C. and holding the catalyst precursor at that temperature for at least 2 hours and cooling the catalyst precursor to room temperature.
First claim
Opening claim text (preview).
What is claimed is: 1. A calcined catalyst of the formula MoV 0.40-0.45 Te 0.10-0.16 Nb 0.13-0.16 O d having an amorphous content of not less than 40 wt. %, and having a crystallite size calculated according to the Scherrer equation of 45 to 55 nm. 2. A calcined catalyst according to claim 1 having a crystallite size calculated according to the Scherrer equation of 50 to 52 nm. 3. The calcined catalyst of claim 1 wherein the catalyst is bound, agglomerated, filled, promoted, impregnated, or supported with from 5 to 90 wt. % of a material other than active phase.
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Classifications
Indexing scheme associated with group B01J35/00, related to the analysis techniques used to determine the catalysts form or properties · CPC title
characterised by their amorphous structures · CPC title
Scanning electron microscopy; Transmission electron microscopy · CPC title
characterised by their crystalline properties, e.g. semi-crystalline (catalysts comprising carbon B01J21/18; molecular sieves B01J29/00) · CPC title
X-ray diffraction · CPC title
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- What does patent US11014072B2 cover?
- Mixed metal oxide catalysts having an amorphous content of not less than 40 wt. % are prepared by calcining the catalyst precursor fully or partially enclosed by a porous material having a melting temperature greater than 600° C. in an inert container including heating the catalyst precursor at a rate from 0.5 to 10° C. per minute from room temperature to a temperature from 370° C. to 540° C. u…
- Who is the assignee on this patent?
- Nova Chem Int Sa
- What technology area does this patent fall under?
- Primary CPC classification B01J23/002. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue May 25 2021 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 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).