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Catalytic component for olefin polymerization and catalyst thereof

A catalytic component and olefin polymerization technology, which is applied in the field of catalytic components and catalysts for olefin polymerization, can solve the problems of high cost, low catalyst activity, and difficult compound synthesis, and achieve wide molecular weight distribution, good sensitivity, three-dimensional highly directional effect

Active Publication Date: 2010-09-08
PETROCHINA CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Patent EP45977 discloses the use of unsubstituted maleic acid esters as internal electron donor compounds for the polymerization of olefins, and the results are poor in activity and stereospecificity; patent US5436213 relates to unsubstituted and 2-methyl unsubstituted Substituted maleic acid esters have lower catalyst activity; Japanese Patent JP58-138708 discloses an internal electron donor—an ester formed by a linear alcohol and a substituted or unsubstituted maleic acid. The performance of the catalyst is in terms of activity and stereospecification. sexually unsatisfactory
[0007] Patent CN1714105A, EP2002010049 and WO2003022894 disclose a series of mono-substituted and double-substituted maleic acid esters, such as 2-isobutyl diethyl maleate as internal electron donor, and the activity and stereospecificity of the catalyst are relatively high. Good, but the synthesis of the compound is difficult and expensive

Method used

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  • Catalytic component for olefin polymerization and catalyst thereof
  • Catalytic component for olefin polymerization and catalyst thereof
  • Catalytic component for olefin polymerization and catalyst thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-6

[0043] 1. Synthesis of maleate compounds

[0044] (1) Synthesis of bicyclo[2.2.1]hept-2,5-diene-2,3-dicarboxylic acid dimethyl ester

[0045] Add 14.2 g of dimethyl butynedioate and 50 mL of cyclopentadiene into a 100 mL flask, and heat to reflux for 12 hours while stirring. After the reaction mixture was cooled to room temperature, it was separated by column chromatography to obtain 19.2 g of an oily liquid product with a yield of 94%. 1 H NMR (TMS, CDCl 3 , 400MHz) analysis results: δ5.64 (q, 2H, alkene H); δ3.77 (s, 6H, CH 3 ); δ2.95(m, 2H, CH); δ2.04(m, 1H, CH 2 ); δ1.79(m, 1H, CH 2 ).

[0046] (2) Synthesis of diethyl bicyclo[2.2.1]hept-2,5-diene-2,3-dicarboxylate

[0047] Add 10.4 g of bicyclo[2.2.1]hept-2,5-diene-2,3-dicarboxylate into a beaker containing 100 mL of 50% sodium hydroxide, stir at room temperature for 2 hours, add dilute hydrochloric acid to acidify, After filtering, washing with water, and weighing after drying, 8.9 g of bicyclo[2.2.1]hept-2,5-dien...

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Abstract

The invention discloses a catalytic component for olefin polymerization, which uses at least one maleic acid ester in a general formula (I) as an internal electron donor, and is used for olefin polymerization, particularly for propylene polymerization (copolymerization) so as to obtain a high-stereospecificity polymer. Meanwhile, the invention also discloses a catalyst containing the catalytic component.

Description

technical field [0001] The invention relates to a catalytic component for olefin polymerization and a catalyst thereof, in particular to a catalytic component and a catalyst for propylene (co)polymerization. Background technique [0002] It is well known that solid titanium catalyst components based on magnesium, titanium, halogen and electron donors can be used for CH 2 =CHR Polymerization of olefins, especially in the polymerization of α-olefins with 3 carbon atoms or more, can give polymers with higher yield and higher stereoregularity. Among them, the electron donor is one of the essential components in the catalyst components, and with the development of the electron donor compound, the polyolefin catalyst is constantly updated. [0003] Earlier, a large number of electron donor compounds were reported in the literature, such as polycarboxylic acids, monobasic or polycarboxylic acid esters, acid anhydrides, ketones, monoethers or polyethers, alcohols, amines, etc. and ...

Claims

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Application Information

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IPC IPC(8): C08F4/649C08F10/06
Inventor 杨战军胡徐腾赵旭涛朱博超贾军纪徐光华李洁张平生黄春波刘文霞刘小燕徐人威王海郝萍王雄
Owner PETROCHINA CO LTD
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