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Catalyst component for olefinic polymerization and its catalyst

A technology of olefin polymerization and catalyst, which is applied in the field of ketone compounding, and can solve the problems of narrow polymer molecular weight distribution and reduced hydrogen sensitivity

Active Publication Date: 2006-10-25
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In recent years, people have attempted to adopt other types of compounds to use as electron donors in the olefin polymerization catalyst component. For example, CN1042547A, CN1143651A and CN1298887A disclose a series of catalyst components for olefin polymerization. A diether compound as an internal electron donor can improve the activity and hydrogenation sensitivity of the catalyst when used in the polymerization of propylene. When the compound is used in combination, the hydrogen adjustment sensitivity of the catalyst is significantly reduced, and the molecular weight distribution of the polymer obtained by this type of catalyst is also narrow

Method used

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  • Catalyst component for olefinic polymerization and its catalyst
  • Catalyst component for olefinic polymerization and its catalyst
  • Catalyst component for olefinic polymerization and its catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0185] Example 1 Synthesis of 1,3-dibenzo-7,9-dioxaspiro[4.5]decane

[0186] Add 6.78g (0.03mol) of 9,9-dimethylolfluorene, 0.57g (0.003mol) of p-toluenesulfonic acid, and 1.00g (0.033mol) of paraformaldehyde into 120ml of benzene, and heat to reflux for 4h. The reaction mixture was cooled to room temperature, transferred to a separatory funnel, washed successively with aqueous sodium bicarbonate solution and saline solution, dried over anhydrous magnesium sulfate, filtered, and desolventized to obtain a yellow viscous oil, which was recrystallized with ethanol to obtain white crystals 3.21g, yield 45.0%, m.p.92-93°C.

[0187] 1 H NMR (400MHz, CDCl 3 )δ (ppm): 3.98 (s, 4H, 2OCH 2 ), 5.22(s, 2H, OCH 2 O), 7.25-7.80 (m, 8H, ArH).

Embodiment 2

[0188] Example 2 Synthesis of 1,3-dibenzo-7,9-dioxa-8,8-dimethylspiro[4.5]decane

[0189] Add 6.78g (0.03mol) of 9,9-dimethylolfluorene, 0.57g (0.003mol) of p-toluenesulfonic acid, and 3.48g (0.06mol) of acetone into 75ml of benzene, and heat to reflux for 4h. The reaction mixture was cooled to room temperature, transferred to a separatory funnel, washed successively with aqueous sodium bicarbonate solution and saline solution, dried over anhydrous sodium sulfate, filtered, and desolventized to obtain a yellow viscous oil, which was recrystallized with ethanol to obtain white crystals 4.04g, yield 54.7%, m.p.96-98°C.

[0190] 1 H NMR (400MHz, CDCl 3 )δ (ppm): 1.72 (s, 6H, 2CH 3 ), 4.02(s, 4H, 2OCH 2 ), 7.24-7.80 (m, 8H, ArH).

Embodiment 3

[0191] Example 3 Synthesis of 1,3-dibenzo-7,14-dioxadispiro[4.2.5.2]pentadecane

[0192] Add 6.78g (0.03mol) of 9,9-dimethylolfluorene, 0.57g (0.003mol) of p-toluenesulfonic acid, and 3.15g (0.032mol) of cyclohexanone into 75ml of benzene, and heat to reflux for 4h. The reaction mixture was cooled to room temperature, transferred to a separatory funnel, washed successively with aqueous sodium bicarbonate solution and saline solution, dried over anhydrous sodium sulfate, filtered, and desolventized to obtain a viscous oil, which was recrystallized with ethanol to obtain white crystal 4.42 g, yield 48.1%, m.p.168-169°C.

[0193] 1 H NMR (400MHz, CDCl 3 )δ (ppm): 1.48-2.10 (m, 10H, 5CH 2 ), 4.00(s, 4H, 2OCH 2 ), 7.32-7.80 (m, 8H, ArH).

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Abstract

The invention supplies a catalyst constituent used in alkene polyreaction. It includes magnesium, titanium, halogen and electron supplying identity. The electron supplying identity contains at least one of acetal or ketal compounds. When using in olefinic polymerization, the polymerizing yield could be satisfied. And the stereospecificity of the polymer is high.

Description

technical field [0001] The present invention relates to a kind of solid catalyst component containing acetal or ketal compound of special structure, the catalyst containing the solid catalyst component and the catalyst in CH 2 = Application in CHR olefin polymerization, where R is hydrogen or C 1 -C 6 The alkyl or aryl group, especially in the application of propylene polymerization, can obtain polymers with higher yield, higher isotacticity and wider molecular weight distribution, and the catalyst has good hydrogen adjustment sensitivity. technical background [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 Olefin polymerization, especially in the polymerization of α-olefins with 3 or more carbon atoms, polymers with higher yield and higher stereoregularity can be obtained, wherein the electron donor compound is in the catalyst component One of the essential ingredients,...

Claims

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Application Information

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IPC IPC(8): C08F10/00C08F4/645
Inventor 刘海涛王文军高明智赵思源丁春敏谢伦嘉马晶陈建华彭人琪
Owner CHINA PETROLEUM & CHEM CORP
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