Catalyst component for olefin polymerization, catalyst, and use thereof

Patent metadata

Field	Value
Publication number	US-11325994-B2
Application number	US-201716336102-A
Country	US
Kind code	B2
Filing date	Sep 22, 2017
Priority date	Sep 23, 2016
Publication date	May 10, 2022
Grant date	May 10, 2022

Abstract

Disclosed is a catalyst component for olefin polymerization. The catalyst component comprises magnesium, titanium, halogen and an internal electron donor. The internal electron donor includes an imine compound with a ketone group as shown in Formula I. Disclosed further is a method of preparing the catalyst component, and a catalyst for olefin polymerization containing the catalyst component. When the catalyst is used in olefin polymerization reaction especially propene polymerization reaction, the catalyst has a high activity and a long term activity and good hydrogen response, and the obtained polymer has characteristics of an adjustable isotactic index and a relatively wide molecular weight distribution.

First claim

The invention claimed is:

1. A catalyst component for olefin polymerization, comprising magnesium, titanium, halogen, and an internal electron donor, wherein the internal electron donor comprises an imine compound having a ketone group selected from:

2. The catalyst component according to claim 1 , wherein based on the weight of the catalyst component, a content of magnesium is in a range of 5 wt %-50 wt %, a content of titanium is in a range of 1.0 wt %-8.0 wt %, a content of halogen is in a range of 10 wt %-70 wt %, and a content of the internal electron donor is in a range of 0.1 wt %-20 wt %.

3. The catalyst component according to claim 1 , wherein the internal electron donor further comprises at least one additional electron donor compound, which is one, two, or three selected from the group consisting of aromatic carboxylate ester compounds, diol ester compounds, and diether compounds.

4. The catalyst component according to claim 3 , wherein a molar ratio of the imine compound having a ketone group to the additional electron donor compound is in a range of 1:(0.05-20).

5. The catalyst component according to claim 4 , wherein the molar ratio of the imine compound having a ketone group to the additional electron donor compound is in a range of 1:(0.1-10).

6. The catalyst component according to claim 3 , wherein the aromatic carboxylate ester compound is as shown in Formula II,

wherein, in Formula II, R I is C 1 -C 20 alkyl with or without a halogen atom substitute, C 2 -C 20 alkenyl with or without a halogen atom substitute, C 2 -C 20 alkynyl with or without a halogen atom substitute, or C 6 -C 30 alkylaryl with or without a halogen atom substitute; R II is C 1 -C 20 alkyl, C 2 -C 20 alkenyl, C 2 -C 20 alkynyl, or C 6 -C 30 alkylaryl or ester group or amido group; R III , R IV , R V , and R VI are identical to or different from each other, each independently selected from the group consisting of C 1 -C 20 alkyl, C 2 -C 20 alkenyl, C 2 -C 20 alkynyl, C 1 -C 20 alkoxy, C 6 -C 30 arylalkyl, C 6 -C 30 alkylaryl, C 9 -C 40 fused aryl, and halogen;
the diol ester compound is as shown in Formula III,

wherein, in Formula III, each of X and Y is independently selected from the group consisting of carbon, oxygen, sulfur, nitrogen, boron, and silicon; R 1 and R 2 are identical to or different from each other, each independently selected from the group consisting of halogen, alkyl, cycloalkyl, aryl, alkenyl, fused aryl, and ester group; R 3 -R 6 are identical to or different from each other, each independently selected from the group consisting of hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, substituted or unsubstituted alkenyl, substituted or unsubstituted fused aryl, and substituted or unsubstituted ester group; R I -R IV are identical to or different from each other, each independently selected from the group consisting of hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, substituted or unsubstituted alkenyl, substituted or unsubstituted fused aryl, and substituted or unsubstituted ester group; R 3 -R 6 and R I -R IV each optionally contains one or more heteroatoms as a substitute of a carbon or hydrogen atom or both, the heteroatom being oxygen, sulfur, nitrogen, boron, silicon, phosphorus, or a halogen atom; one or more of R 3 -R 6 , and R I to R IV are optionally bonded together to form a ring; and n is an integer ranging from 1 to 10; and/or
the diether compound is as shown in Formula IV,

wherein, in Formula IV, R′ and R″ are identical to or different from each other, each independently selected from the group consisting of C 1 -C 20 hydrocarbyl; n is an integer ranging from 0 to 6; R I -R IV are identical to or different from each other, each independently selected from the group consisting of hydrogen, alkoxy, substituted amino, halogen atoms, C 1 -C 20 hydrocarbyl, and C 6 -C 20 aryl, and two or more of R I -R IV are bonded together to form a ring.

7. The catalyst component according to claim 6 , wherein in Formula II, R I is selected from the group consisting of methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, pentyl, isopentyl, neopentyl, hexyl, ethenyl, allyl, ethynyl, phenyl, halogenated phenyl, alkyl-substituted phenyl, naphthyl, or biphenyl; and/or, R II is selected from the group consisting of methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, pentyl, isopentyl, neopentyl, hexyl, ethenyl, allyl, ethynyl, phenyl, halogenated phenyl, alkyl-substituted phenyl, naphthyl, biphenyl, ethoxycarbonyl, propoxycarbonyl, isopropoxycarbonyl, butoxycarbonyl, isobutoxycarbonyl, hexoxycarbonyl, isohexoxycarbonyl, neohexoxycarbonyl, heptyloxycarbonyl, isoheptyloxycarbonyl, neoheptyloxycarbonyl, octyloxycarbonyl, isooctyloxycarbonyl, and neooctyloxycarbonyl.

8. The catalyst component according to claim 6 , wherein the diol ester compound is as shown Formula IIIa:

wherein in Formula IIa, R 1 , R 2 and R 3 -R 6 are identical to or different from each other, each independently selected from the group consisting of C 1 -C 20 alkyl, C 3 -C 20 cycloalkyl, C 2 -C 20 alkenyl, C 6 -C 30 arylalkyl, C 6 -C 30 alkylaryl, C 9 -C 40 fused aryl and ester group; R I and R II are identical to or different from each other, each independently selected from the group consisting of hydrogen, C 1 -C 20 alkyl, C 3 -C 20 cycloalkyl, C 2 -C 20 alkenyl, C 6 -C 30 arylalkyl, C 6 -C 30 alkylaryl, C 9 -C 40 fused aryl and ester group; R 3 -R 6 and R I -R IV each optionally contains one or more heteroatoms as a substitute of a carbon or hydrogen atom or both, the heteroatom being oxygen, sulfur, nitrogen, boron, silicon, phosphorus, or halogen atom; and one or more of R 3 -R 6 , R I , and R II are optionally bonded to form a ring; n is an integer ranging from 1 to 5.

9. The catalyst component according to claim 8 , wherein the diol ester compound is as shown in Formula IIb:

10. The catalyst component according to claim 6 , wherein in at least one of Formula III, Formula IIIa, and Formula IIIb, each of R 1 and R 2 is independently selected from the group consisting of methyl, ethyl, n-propyl, isoproplyl, n-butyl, isobutyl, sec-butyl, tert-butyl, pentyl, hexyl, hydroxyalkyl, phenyl, halogenated phenyl, alkyl-substituted phenyl, naphthyl, biphenyl, and a heterocycle-containing group selected from a pyrrole-containing group, a pyridine-containing gr

Assignees

• China Petroleum & Chem Corp
• Beijing Res Inst Chemical Ind China Petroleum & Chemical Corp

Inventors

• Wang Jun
• Gao Mingzhi
• Liu Haitao
• Ma Jing
• Ma Jixing
• Cai Xiaoxia
• Chen Jianhua
• Hu Jianjun
• Li Changxiu
• Zhang Zhihui
• Duan Ruilin
• Ma Changyou

Classifications

• C08F110/06 Primary

  Propene · CPC title

• C08F4/6425

  containing magnesium · CPC title

• C08F4/65912

  in combination with an organoaluminium compound · CPC title

• C08F4/6543

  halides of magnesium · CPC title

• C08F4/6465

  containing silicium · CPC title