Propylene polymerization catalyst, preparation method and application thereof
A technology of propylene polymerization and catalyst, applied in the application of catalyst in propylene homopolymerization or propylene and α-olefin copolymerization, catalyst for propylene homopolymerization or copolymerization, catalyst preparation field, can solve the problem of low isotacticity, melting Low index problem, achieve high isotacticity, high melt index, simple preparation method
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0045] Example 1
[0046] In the reactor fully replaced by nitrogen, add 1.0g spherical MgCl in sequence 2 Carrier, 20ml decane, stir at high speed, slowly drop 25ml of titanium tetrachloride and 4 millimoles of internal electron donor diethyl phthalate at -20°C, keep this temperature for 1 hour, and then heat up to 100°C React for 2 hours, stop stirring, let stand, and filter; then add 30ml of hexane at -20°C, slowly drop 25ml of titanium tetrachloride, keep this temperature for 1 hour, raise the temperature to 100°C for 2 hours, stop stirring, Let stand, filter, wash four times with hexane at 60°C (30 ml each time), and dry to obtain a spherical powdery solid procatalyst with good fluidity, uniform particle size distribution, and the mass of Ti in the solid procatalyst. The sub-content is 3.7%.
[0047] After fully replacing the 2 liter stainless steel autoclave with nitrogen, add 20 mg of the main catalyst prepared above, 3.0 ml of the hexane solution of the external electron d...
Example Embodiment
[0048] Example 2
[0049] In the reactor fully replaced by nitrogen, add 1.0g spherical MgCl in sequence 2 Carrier, 25ml decane, stir at high speed, slowly drop 20ml of titanium tetrachloride and 6 millimoles of internal electron donor triethoxymethoxysilane at -15°C, keep this temperature for 1 hour, and then heat to 100 React for 2 hours at ℃, stop stirring, stand still, filter, and then add 20ml of decane to the system at -10℃, and then slowly drop 15ml of titanium tetrachloride, stir, keep this temperature for 1 hour, and slowly raise the temperature to 80 React for 2 hours at ℃, stand still, filter, wash four times with hexane at 60℃ (30 ml each time), and dry to obtain a spherical powdery solid procatalyst with good fluidity, uniform particle size distribution, and solid procatalyst. The mass percentage of Ti is 3.9%.
[0050] After fully replacing the 2 liter stainless steel autoclave with nitrogen, add 20 mg of the main catalyst prepared above, 3.0 ml of the hexane solutio...
Example Embodiment
[0051] Example 3
[0052] In the reactor fully replaced by nitrogen, add 1.0g spherical MgCl in sequence 2 Carrier, 25ml decane, stir at high speed, slowly drop 20ml of titanium tetrachloride and 8 millimoles of internal electron donor succinate at -10°C, keep this temperature for 1 hour, and then increase to 90°C for 3 hours. Stop stirring, let stand, and filter; then add 40ml heptane at -10°C, slowly drop 35ml titanium tetrachloride, keep this temperature for 1.5 hours, heat up to 110°C and react for 2.5 hours, stop stirring, stand still, and filter , Washed four times with 60 ℃ hexane (30 ml each time) and dried to obtain a spherical powdery solid procatalyst with good fluidity, uniform particle size distribution, and the mass percentage of Ti in the solid procatalyst is 3.6 %.
[0053] After fully replacing the 2 liter stainless steel autoclave with nitrogen, add 20 mg of the main catalyst prepared above, 3.0 ml of the hexane solution of the external electron donor with a Si / T...
PUM
Property | Measurement | Unit |
---|---|---|
Melt index | aaaaa | aaaaa |
Melting point | aaaaa | aaaaa |
Melt index | 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.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap