Catalyst component for ethylene polymerization, and preparation method thereof, and catalyst for ethylene polymerization
A technology of ethylene polymerization and catalyst, which is applied in the field of ethylene polymerization catalysts. It can solve the problems of unsatisfactory bulk density of the catalyst system, troublesome waste liquid treatment, difficult control of stability, etc., and achieve high bulk density, controllable particle size, The effect of high catalytic activity
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0049] (1) Preparation of catalyst components
[0050] In the reactor fully replaced by high-purity nitrogen, add 4.0g of magnesium dichloride, 120ml of toluene, 3.0ml of 1-chloro-2-methyl-2-propanol, 10.0ml of ethanol, and 3.0ml of tributyl phosphate, The temperature was raised to 70° C. under stirring, and reacted at 70° C. for 2 hours. After forming a uniform solution, 10.0 ml of epichlorohydrin was added to continue the reaction for 0.5 hours to form a solid precipitate. Cool the reaction system to -15°C, slowly add 25ml of titanium tetrachloride dropwise, keep the temperature constant for 0.5 hours, then add 2.0ml of 2-chloroethyl benzoate and 1.0ml of tetrabutyl titanate, slowly raise the temperature to 85°C, The reaction was carried out at this temperature for 2 hours. Then stop stirring, let it stand, the suspension is quickly separated into layers, the supernatant is extracted, washed four times with hexane, and dried with high-purity nitrogen to obtain a solid catal...
Embodiment 2
[0054] (1) The preparation process of the solid catalyst component is the same as in Example 1, the difference is that 1-chloro-2-methyl-2-propanol is changed to add 1-ethoxyl-2-propanol, and the consumption is 4.5 ml; the dosage of 2-chloroethyl benzoate is 2.5ml.
[0055] (2) Ethylene polymerization is the same as embodiment 1. The aggregation results are shown in Table 1.
Embodiment 3
[0057] (1) The preparation process of the solid catalyst component is the same as Example 1, and the difference is that the 1-chloro-2-methyl-2-propanol consumption is 2.8ml; benzoic acid-2-chloroethyl is changed to benzoic acid -4-Chlorobutyl ester, the dosage is 2.6ml.
[0058] (2) Ethylene polymerization is the same as embodiment 1. The aggregation results are shown in Table 1.
PUM
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