Alkene polymerization catalyst and preparation method and applications thereof
A technology of olefin polymerization and catalyst, which is applied in the field of catalyst preparation, olefin homopolymerization or copolymerization catalyst, which can solve the problems of easy adhesion on the container wall, poor hydrogen adjustment performance of the catalyst, low catalyst activity, etc., and achieve the shape of polymer particles Good, good particle shape, high catalyst activity
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0049] In the reactor fully replaced by nitrogen, add 1 g of magnesium dichloride, 20 ml of n-decane, 0.2 ml of ethanol, and 6.5 ml of isooctanol, and the temperature is raised to 120° C. with stirring for 2 hours. The temperature was lowered to 50° C., 2.5 g of an organophosphorus compound (compound 1) conforming to the general formula (III) was added in sequence, and the temperature was kept at 50° C. for 2 h. The system was lowered to -15 °C, 30 ml of titanium tetrachloride was added dropwise, the reaction was carried out for 1 h, and the temperature was raised to 110 °C for another 2 h. Stop stirring, stand, layer, filter, wash with hexane four times (30 ml each time), and vacuum dry at 70°C for 2 hours to obtain a powder with good fluidity, non-sticking to the container wall, uniform particle size distribution and spherical shape solid main catalyst.
Embodiment 2
[0051] In the reactor fully replaced by nitrogen, add 1 g of magnesium dichloride, 30 ml of n-decane, 0.25 ml of ethanol, and 7 ml of isooctanol, and the temperature is raised to 120°C with stirring for 2 hours. The temperature was lowered to 60°C, 1.5 g of an organophosphorus compound (compound 2) conforming to the general formula (III) was added in sequence, and the temperature was kept at 60°C for 2 hours. The system was lowered to -10 °C, 40 ml of titanium tetrachloride was added dropwise, the reaction was carried out for 1 h, the temperature was raised to 100 °C and the reaction was continued for 3 h. Stop stirring, stand, layer, filter, wash with hexane four times (30 ml each time), and vacuum dry at 60 ° C for 3 hours to obtain a powder with good fluidity, uniform particle size distribution, non-stick to the container wall, and spherical powder solid main catalyst.
Embodiment 3
[0053] In the reactor fully replaced by nitrogen, add 1 g of magnesium dichloride, 20 ml of n-decane, 0.2 ml of ethanol, and 8 ml of isooctanol, and stir to raise the temperature to 100 °C for 2 h. The temperature was lowered to 50° C., 13 g of an organophosphorus compound (compound 3) conforming to the general formula (III) was sequentially added, and the temperature was raised to 80° C. to react for 2 h. The system was lowered to -15 °C, 35 ml of titanium tetrachloride was added dropwise, the reaction was carried out for 1 h, and the temperature was raised to 65 °C for another 2 h. Stop stirring, stand, layer, filter, wash with hexane four times (30 ml each time), and vacuum dry at 50 ° C for 4 hours to obtain a powder with good fluidity, uniform particle size distribution, non-stick to the container wall, and spherical powder. solid main catalyst.
PUM
| Property | Measurement | Unit |
|---|---|---|
| Melt index | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More