Catalyst
A catalyst, titanium catalyst technology, applied in the direction of chemical/physical processes, etc., can solve the problems of exhaustion and high cost, adverse effects on catalyst performance, etc.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 2
[0082] Catalyst (B) preparation
[0083] In a 250ml flask equipped with a reflux condenser and a stirring device, 2g of magnesium chloride with a total water content of 1.5% (mass ratio) was suspended in 60ml of highly purified hexane. The temperature of the suspension was heated to 45° C., and then 2 ml of dibutyl ether was added to the flask, and the heating was stopped. The mixture was stirred for 3 hours after the heating was stopped. To avoid excessive heat build-up, 9 g of triethylaluminum ('TEA') was added dropwise and the resulting slurry was cooled to room temperature with stirring. The slurry was washed 12 times with 50 ml of hexane solution each time to obtain a slurry containing the activated carrier.
[0084] 2 ml of a 3:1.5:1 molar ratio of ethanol:1-pentanol:1-hexanol mixture was added to the slurry containing the activated carrier, and the slurry was stirred for 3 hours. Then add 20ml TiCl to the slurry 4 , and the resulting mixture was stirred at reflux ...
Embodiment 3
[0086] Add 300 ml of highly purified n-heptane to a 11 stainless steel reactor equipped with a stirring device. The reactor was heated to 85°C, and 1 ml of a 10% by weight TEA solution was added thereto. 0.1 ml of Catalyst B was added to the reactor, the mixture was stirred for 5 minutes, after which time the reactor was pressurized to 15 bar with ethylene and the reaction started. The reaction was continued for 60 minutes at normal pressure maintained by ethylene, after which the ethylene supply was cut off and the reactor was evacuated. Isopropanol was added to deactivate the catalyst and the reaction mixture was cooled to room temperature. The slurry was filtered, washed with isopropanol and acetone, and the obtained polymer was dried under reduced pressure in a vacuum oven at 80° C. for 24 hours. The dry polymer in powder form was weighed to obtain 83 g of polymer. The activity of Catalyst B was calculated to be 83 kg / g catalyst per hour. Example 4
Embodiment 4
[0087] Add 300 ml of highly purified n-heptane to a 11 stainless steel reactor equipped with a stirring device. The reactor was heated to 85°C, and 1 ml of a 10% by weight TEA solution was added thereto. 0.1 ml of Catalyst A was added to the reactor and the mixture was stirred for 5 minutes after which time the reactor was pressurized to 15 bar with ethylene and the reaction started. The reaction was continued for 60 minutes at normal pressure maintained by ethylene, after which the ethylene supply was cut off and the reactor was evacuated. Isopropanol was added to deactivate the catalyst and the reaction mixture was cooled to room temperature. The slurry was filtered, washed with isopropanol and acetone, and the obtained polymer was dried under reduced pressure in a vacuum oven at 80° C. for 24 hours. The dry polymer in powder form was weighed to yield 58.1 g of polymer. The activity of catalyst A was calculated to be 58.1 kg / g catalyst per hour. Example 5
PUM
| Property | Measurement | Unit |
|---|---|---|
| Surface area | aaaaa | aaaaa |
| Surface area | aaaaa | aaaaa |
| Surface area | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to view more - R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap