Unlock instant, AI-driven research and patent intelligence for your innovation.

Catalyst component and preparation method thereof, and catalyst and application thereof

A catalyst and full vulcanization technology, which is applied in the field of olefin polymerization catalysts, can solve problems such as broken, unsatisfactory, and increased fine powder content, and achieve the effects of low fine powder content, good hydrogen adjustment performance, and high bulk density

Active Publication Date: 2021-10-22
CHINA PETROLEUM & CHEM CORP +1
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] CN1802391A discloses a catalyst for ethylene polymerization prepared by a spray drying process. The catalyst has good activity, but in the gas phase polymerization, serious fragmentation will still occur and the fine powder content will increase
[0008] Some of the above-mentioned various catalysts can only improve the performance of olefin polymerization catalysts in a certain aspect, although some can improve several performances, they are still not ideal.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Catalyst component and preparation method thereof, and catalyst and application thereof
  • Catalyst component and preparation method thereof, and catalyst and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0087] (1) Preparation of catalyst components

[0088] To a 250mL four-necked flask equipped with a temperature controller, a stirrer, and a reflux condenser, which was purged and protected with nitrogen, 120mL of tetrahydrofuran (THF), 4.2g of magnesium chloride and 1.0mL of TiCl were successively added under stirring. 4 , heated up to 68° C. under stirring, and refluxed at this temperature for 4 hours to obtain the mother liquor;

[0089] Into a 250mL four-necked flask equipped with a temperature controller, a stirrer, and a reflux condenser, which was purged and protected with nitrogen, 5.5g of silica gel (Cabot Corporation TS-610, particle size less than 1 μm) and 1.0g of all Vulcanized carboxylated styrene-butadiene superfine powder rubber (particle diameter 150nm, gel content 92.6%, the preparation method is referring to the embodiment 1 of patent WO01 / 40356A1), the weight ratio of silica gel and superfine powder rubber is 5.5, and the above-mentioned mother liquor is ad...

Embodiment 2

[0094] Compared with Example 1, only in the preparation of step (1) catalyst component " add 5.5g silica gel (Cabot Corporation TS-610, particle diameter is less than 1 μ m) and 1.0g fully vulcanized carboxylated styrene butadiene superfine powder rubber (particle diameter 150nm, gel content 92.6%), the weight ratio of silica gel to superfine powder rubber 5.5" was changed to "add 6.4 grams of silica gel (Cabot Corporation TS-610, particle size less than 1 μm) and 0.1g of fully vulcanized carboxylated styrene-butadiene superfine powder rubber (Particle diameter 150nm, gel content 92.6%, preparation method sees the embodiment 1 of patent WO01 / 40356A1), the weight ratio of silica gel and superfine powder rubber is 64", other is the same as embodiment 1. Among them, the content of superfine powder rubber in the catalyst is calculated to be 0.54wt%, and the content analysis of other components is shown in Table 1, and the balance is carrier.

Embodiment 3

[0096] Compared with Example 1, only in the preparation of step (1) catalyst component " add 5.5g silica gel (Cabot Corporation TS-610, particle diameter is less than 1 μ m) and 1.0g fully vulcanized carboxylated styrene butadiene superfine powder rubber (particle diameter 150nm, gel content 92.6%), the weight ratio of silica gel to fully vulcanized carboxylated styrene-butadiene superfine powder rubber 5.5" was changed to "add 6.0 grams of silica gel (Cabot Corporation TS-610, particle size less than 1 μm) and 0.5g of fully vulcanized carboxyl Styrene-butadiene superfine powder rubber (particle diameter 150nm, gel content 92.6%, the preparation method is referring to the embodiment 1 of patent WO01 / 40356A1), the weight ratio of silica gel and superfine powder rubber is 12", and others are the same as embodiment 1. Among them, the content of superfine powder rubber in the catalyst is calculated to be 2.747wt%, and the content analysis of other components is shown in Table 1, an...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a catalyst component and a preparation method thereof, and a catalyst and application thereof. The catalyst component comprises, by weight, 0.1-5.0 wt% of titanium, 0.2-10.2 wt% of magnesium, 15-40 wt% of an electron donor, 0.01-15 wt% of ultrafine powder rubber and 1-70 wt% of an inorganic oxide carrier, wherein the average particle size of the ultrafine powder rubber is 20-2000 nm, and the gel content is not less than 60 wt%. The catalyst component is obtained by mixing the raw materials and then carrying out spray drying. The catalyst component reacts with an organic aluminum compound to obtain the olefin polymerization catalyst. The content of electron donors in obtained catalyst particles is low, and the olefin polymerization catalyst is used for catalyzing ethylene polymerization. The catalyst is high in activity and good in hydrogen regulation performance, and obtained polymer powder is high in stacking density and low in fine powder content.

Description

technical field [0001] The invention relates to an olefin polymerization catalyst, in particular to a catalyst component, its preparation method, its catalyst and its application. Background technique [0002] Spray drying is an effective method for preparing high-efficiency Ziegler-Natta catalysts for olefin polymerization. This method uses gas to spray the dissolved liquid or suspended liquid into a hot inert gas drying chamber through a specially designed nozzle for drying, and the dispersed mist micro-droplets are dried into powder or granular products. Once the droplets come into contact with the dry carrier gas, evaporation takes place on a film of saturated vapor that rapidly builds up on the droplet surface. During evaporation, the droplet size distribution changes and different products show different characteristics. During the evaporation process, the droplets are prone to expand, collapse, break or split, resulting in porous, irregular shapes, which are related...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08F10/00C08F10/02C08F110/02C08F4/649C08F4/02
CPCC08F10/00C08F10/02C08F110/02C08F4/6494C08F4/025C08F4/6492C08F4/6495C08F2500/18C08F2500/12C08F2500/24
Inventor 崔楠楠郭子芳王如恩李秉毅傅捷马永华黄廷杰张彤瑄
Owner CHINA PETROLEUM & CHEM CORP