Olefin polymerizing catalyst, preparation and use thereof
A technology of olefin polymerization and catalyst, which is applied in the field of improved supported chromium-based catalysts, which can solve the problems of low catalytic efficiency and temperature sensitivity, and achieve the effects of high bulk density, good polymer morphology and improved efficiency
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0028] Composite carrier A described in the present invention was prepared.
[0029] Mix 200g AlCl with stirring 3 ·6H 2 O was dissolved in 1000mL deionized water, and 1900g SiO was added 2 The carrier is impregnated at 30-50°C for 2 hours, heated up to 100°C to evaporate free water in the system, and fully dried to obtain SiO with good flow. 2 / AlCl 3 Composite carrier, under nitrogen protection, activated the obtained composite carrier in a muffle furnace for 12 hours at 600°C, took it out and cooled it to normal temperature under nitrogen protection, and obtained composite catalyst carrier A.
Embodiment 2
[0031] Composite carrier B of the present invention was prepared.
[0032] 400g AlCl 3 ·6H 2 O was dissolved in 1000mL deionized water, and 1800g SiO was added 2 The carrier is impregnated at 30-50°C for 2 hours, heated up to 100°C to evaporate free water in the system, and fully dried to obtain SiO with good flow. 2 / AlCl 3 Composite carrier, under the protection of nitrogen, activated the obtained composite carrier in a muffle furnace for 12 hours at 600°C, took it out and cooled it to normal temperature under the protection of nitrogen, and obtained the composite catalyst carrier B.
Embodiment 3
[0034] Prepare composite carrier C according to the present invention.
[0035] 400g of anhydrous AlCl 3 Dissolve in 1000mL deionized water, add 1600g SiO 2 The carrier is impregnated at 30-50°C for 2 hours, heated up to 100°C to evaporate free water in the system, and fully dried to obtain SiO with good flow. 2 / AlCl 3 Composite carrier, under nitrogen protection, activated the obtained composite carrier in a muffle furnace for 12 hours at 600° C., took it out and cooled it to normal temperature under nitrogen protection, and obtained composite catalyst carrier C.
PUM
Property | Measurement | Unit |
---|---|---|
pore size | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- 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, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com