Olefin Epoxidation Catalyst Prepared by Unique Method (new invention from WANHUA CHEMICAL GROUP CO., LTD. 01/04/2022)
Overview
What is this invention?
Preparation method for olefin epoxidation catalyst and applications thereof
The Olefin Epoxidation Catalyst of the Present InventionWANHUA CHEMICAL GROUP CO., LTD. has invented a new olefin epoxidation catalyst that has great potential for industrial applications. The catalyst, which is composed of titanium and alkyl silicate, can be used to prepare propylene oxide from propylene with an average selectivity up to 96.7%. This makes the catalyst a valuable tool for many chemical processes, including those involving epoxide formation.Loading auxiliary metal salt onto a silica gel carrier forms the foundation of this invention. After being dried, this material is loaded onto titanium salt by chemical vapor deposition (CVD). This process allows for precise control over composition and size of the Ti component in the catalyst structure. Calcining results in a highly active composite oxide with excellent reactivity towards PO Formation reactions at ambient temperature conditions.
The catalyst of the present invention can be used to perform propylene epoxidation, which produces propylene oxide. Propylene oxide is a key component in many industrial applications, such as polyester production and ABS manufacturing. The average selectivity to PO achieved with the catalyst of the present invention was up to 96.7%, which is impressive! Additionally, the method of the present invention has great potential for industrial application.
What are some key features of the invention?
- Olefin epoxidation catalyst
- Silica gel carrier
- Titanium salt (preferably TiCl4)
- Auxiliary metal oxide
- Alkyl silicate (preferably tetraethyl orthosilicate)
- Catalytic precursor (Ti-MeO—SiO2 composite oxide)
- Silylanization treatment
What are some similar inventions on the market?
There are many similar products on the market that can also be used in industrial epoxidation reactions. Some of these include Pt-based catalysts, TiO2 supported catalysts, and heterogeneous catalyst systems. However, none of these materials come close to the unique properties of the olefin epoxidation catalyst described by WANHUA CHEMICAL GROUP CO., LTD.
How could this be used?
The present invention provides a preparation method for an olefin epoxidation catalyst, as well as applications thereof. The method comprises loading an auxiliary metal salt onto a silica gel carrier, and carrying out a drying treatment to the silica gel carrier. Next, loading of titanium salt (preferably TiCl4) is carried out by a chemical vapor deposition method. Finally, calcining to obtain a silica gel on which the auxiliary metal oxide and Ti species are loaded takes place. An catalyst precursor is then obtained by water vapor washing followed by alkyl silicate (preferably tetraethyl orthosilicate) loading onto the surface of the catalyst precursor by a chemical vapor deposition method and calcining the catalyst precursor to obtain TI-MeO—SiO2 composite oxide withsurface coated with SiO2 layer. Lastly, silylanization treatment is carried out to obtain the desired catalytic material
What are some things to look out for with this?
There are few risks to using the catalyst of the present invention. The only potential downside is that it may be difficult to recover the catalyst after use, since it is a solid material.
What are the overall impressions of this invention?
I think the product is well-designed and functional.
Final comment expressed in a poem (written by an A.I.)
The present invention is great news
For those looking for better olefin epoxidation catalysts
By loading an auxiliary metal salt onto a silica gel carrier
And carrying out a drying treatment, you'll get much faster results
Who owns this patent?
WANHUA CHEMICAL GROUP CO., LTD.
Document Number: 11213811