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

Titanium-containing catalyst, catalyst for olefin polymerization, and preparation method and application of titanium-containing catalyst

A titanium catalyst and catalyst technology are applied to titanium-containing catalysts, catalysts for olefin polymerization and their preparation and application fields, which can solve the problems of complex preparation process and long reaction process, and achieve broad application prospects, long activity decay period, high yield effect

Pending Publication Date: 2022-05-10
CHINA PETROLEUM & CHEM CORP +1
View PDF17 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation process of the catalyst is relatively complicated, the raw materials used are various, and the reaction process is relatively long.
Moreover, the productivity and catalyst performance of the catalyst prepared by this method need to be further improved.

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
  • Titanium-containing catalyst, catalyst for olefin polymerization, and preparation method and application of titanium-containing catalyst
  • Titanium-containing catalyst, catalyst for olefin polymerization, and preparation method and application of titanium-containing catalyst
  • Titanium-containing catalyst, catalyst for olefin polymerization, and preparation method and application of titanium-containing catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0121] (1) Preparation of titanium-containing catalyst:

[0122] In the reaction kettle that has been repeatedly replaced by high-purity nitrogen, add 5.0g of anhydrous magnesium chloride, 44mL of toluene, 20mL of 2-ethylhexanol, and 6mL of 1,2-epichlorohydrin in sequence. The reaction was carried out at 110°C for 5 hours to obtain a stable and uniform alcoholate solution. Add 0.4 mL of 3,5-heptanediol dibenzoate and 0.7 mL of dibutyl phthalate to the alcoholate solution, stir for a while, and cool to room temperature.

[0123] Add the homogeneous solution prepared in the above steps into a reactor fully replaced by nitrogen and equipped with 90 mL of titanium tetrachloride and 10 mL of toluene at -25 ° C, and make them fully contact at low temperature by stirring. After 6 hours, the temperature is raised to 100°C, add 1.5mL dibutyl phthalate, react for 1 hour, after the reaction, filter out the liquid, then add 90mL toluene and 60mL titanium tetrachloride, continue to react ...

Embodiment 2

[0127] The preparation process is the same as that of Example 1, except that 44 mL of toluene and 6 mL of 1,2-epichlorohydrin in step (1) are replaced by 48 mL of toluene and 2 mL of 1,2-epichlorohydrin. The polymer was obtained and tested, and the results are shown in Table 1.

Embodiment 3

[0129] The preparation process is the same as in Example 1, except that 44 mL of toluene and 6 mL of 1,2-epichlorohydrin in step (1) are replaced by 38 mL of toluene and 12 mL of 1,2-epichlorohydrin. The polymer was obtained and tested, and the results are shown in Table 1.

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

No PUM Login to View More

Abstract

The invention discloses a titanium-containing catalyst, a catalyst for olefin polymerization and a preparation method and application of the titanium-containing catalyst. The titanium-containing catalyst is prepared from the following raw materials: magnesium halide, an alcohol compound, alkylene oxide, a diol ester compound, a first ester compound, a titanium compound and an optional second ester compound. The catalyst for olefin polymerization is prepared from the following raw materials: a titanium-containing catalyst, an aluminum alkyl compound and an optional external electron donor. According to the present invention, the compound of the diol ester compound and the first ester compound is adopted as the co-precipitation agent to replace the traditional phthalic anhydride co-precipitation agent, such that the obtained catalyst has characteristics of perfect particle morphology, high catalyst yield, high polymerization activity when used for olefin polymerization, long activity period, and wide application prospect.

Description

technical field [0001] The invention relates to a titanium-containing catalyst, a catalyst for olefin polymerization, a preparation method and application thereof. Background technique [0002] The catalysts used in the olefin polymerization process generally use magnesium, titanium, halogen and electron donors as the basic components, and the active components containing titanium are loaded through crystallization, and catalysts with relatively uniform particle sizes can be obtained in the presence of precipitation aids , The traditional precipitation aids include organic acid anhydrides, organic acids, ketones, ethers and esters. [0003] CN1436766A discloses a polyol ester compound, which is suitable for the preparation of olefin polymerization catalysts. CN1436796A and CN1453298A describe the polyolefin catalyst active component obtained by using the above-mentioned polyol ester compound as an internal electron donor. The catalyst has high activity and good stereospecif...

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): C08F110/06C08F4/651C08F4/654C08F4/646
CPCC08F110/06C08F2500/12C08F2500/18C08F2500/15C08F4/651C08F4/6543C08F4/6465
Inventor 徐秀东周奇龙张锐尹珊珊宋维玮李凤奎于金华
Owner CHINA PETROLEUM & CHEM CORP