Catalyst component for olefin polymerization, preparation method thereof, and catalyst comprising same

Patent metadata

Field	Value
Publication number	US-2016264694-A1
Application number	US-201415029870-A
Country	US
Kind code	A1
Filing date	Oct 17, 2014
Priority date	Oct 18, 2013
Publication date	Sep 15, 2016
Grant date	—

Abstract

The present invention provides a catalyst component for olefin polymerization and a preparation method thereof, and a catalyst for olefin polymerization and an application thereof. The catalyst component for olefin polymerization comprises reaction products of the following components: (1) a solid component; (2) at least one titanium compound; and (3) at least two internal electron donors, wherein the solid component comprises a magnesium compound represented by formula (1) and an epoxide represented by formula (2), wherein R 1 is a C 1 -C 12 linear or branched alkyl; R 2 and R 3 are identical or different, and are independently hydrogen or unsubstituted or halogen-substituted C 1 -C 5 linear or branched alkyl; X is halogen; m is in a range of from 0.1 to 1.9, n is in a range of from 0.1 to 1.9, and m+n=2.

First claim

1 . A catalyst component for olefin polymerization, comprising reaction products of the following components:
(1) a solid component; (2) at least one titanium compound; and (3) at least two internal electron donors; wherein the solid component comprises a magnesium compound represented by formula (1) and an epoxide represented by formula (2),

wherein, R I is a C 1 -C 12 linear or branched alkyl; R II and R III are identical or different, and are independently hydrogen or unsubstituted or halogen-substituted C 1 -C 5 linear or branched alkyl;
X is halogen; m is in a range of from 0.1 to 1.9, n is in a range of from 0.1 to 1.9, and m+n=2; and
wherein the content of the epoxide represented by the formula (2) is in a range of from 0.01 to 0.8 moles per mole of the magnesium compound represented by the formula (1).

2 . The catalyst component according to claim 1 , wherein, R I is a C 1 -C 8 linear or branched alkyl; R II and R III are independently hydrogen or unsubstituted or halogen-substituted C 1 -C 3 linear or branched alkyl; X is chlorine; m is in a range of from 0.5 to 1.5, n is in a range of from 0.5 to 1.5, and m+n=2.

3 . The catalyst component according to claim 1 , wherein, in the solid component, the content of the epoxide represented by the formula (2) is in a range of from 0.02 to 0.5 moles, and preferably from 0.02 to 0.1 moles, per mole of the magnesium compound represented by the formula (1).

4 . The catalyst component according to claim 1 , wherein, relative to one mole of the magnesium compound represented by the formula (1) in the solid component, the amount of the titanium compound is from 5 to 200 moles, and preferably from 10 to 50 moles; and the amount of the internal electron donors is from 0.04 to 0.6 moles, and preferably from 0.1 to 0.4 moles.

5 . The catalyst component according to claim 1 , wherein the titanium compound is chosen from those of formula Ti(OR IV ) 4-n X a , wherein R IV is a C 1 -C 14 aliphatic hydrocarbyl, X is halogen, and a is an integer ranging from 1 to 4, and preferably, the titanium compound is chosen from titanium tetrachloride, titanium tetrabromide, titanium tetraiodide, tetrabutoxy titanium, tetraethoxy titanium, tributoxy titanium chloride, dibutoxy titanium dichloride, butoxy titanium trichloride, triethoxy titanium chloride, diethoxy titanium dichloride, and ethoxy titanium trichloride.

6 . The catalyst component according to claim 1 , wherein the internal electron donors are a combination of a first internal electron donor and a second internal electron donor, wherein the first internal electron donor is at least one ester of diol, and the second internal electron donor is at least one diether compound, and wherein a molar ratio of the first internal electron donor to the second internal electron donor is in a range of from 0.55:1 to 50:1, preferably from 0.6:1 to 30:1, and more preferably from 0.65:1 to 10:1.

7 . The catalyst component according to claim 6 , wherein the ester of diol is chosen from those represent by formula (3):

wherein, R 1 and R 2 are identical or different, and are independently C 1 -C 10 linear or branched alkyl, C 3 -C 20 cycloalkyl, C 6 -C 20 aryl, C 7 -C 20 alkylaryl or C 7 -C 20 arylalkyl, with the hydrogen atom(s) on the phenyl ring in the aryl, the alkylaryl and the arylalkyl being optionally substituted by halogen atom(s); R 3 -R 6 and R 1 -R 2n are identical or different, and are independently hydrogen, halogen, C 1 -C 20 linear or branched alkyl, C 3 -C 20 cycloalkyl, C 6 -C 20 aryl, C 7 -C 20 alkylaryl, C 7 -C 20 arylalkyl, C 2 -C 10 alkenyl or C 10 -C 20 fused-ring aryl, with carbon atom(s) and/or hydrogen atom(s) in R 3 -R 6 and R 1 -R 2n being optionally replaced by heteroatom(s), which is/are chosen from nitrogen, oxygen, sulfur, silicon, phosphorus and halogen, and two or more of R 3 to R 6 and R 1 to R 2n are optionally linked to form a saturated or unsaturated ring; and n is an integer ranging from 0 to 10, preferably, the ester of diol is chosen from those represented by formula (4):

wherein R 7 -R 12 are identical or different, and are independently chosen from hydrogen and C 1 -C 20 linear or branched alkyl,
more preferably, the ester of diol is chosen from 1,3-propylene glycol dibenzoate, 2-methyl-1,3-propylene glycol dibenzoate, 2-ethyl-1,3-propylene glycol dibenzoate, 2-propyl-1,3-propylene glycol dibenzoate, 2-butyl-1,3-propylene glycol dibenzoate, 2,2-dimethyl-1,3-propylene glycol dibenzoate, 2-ethyl-2-butyl-1,3-propylene glycol dibenzoate, 2,2-diethyl-1,3-propylene glycol dibenzoate, 2-methyl-2-propyl-1,3-propylene glycol dibenzoate, 2-isopropyl-2-isopentyl-1,3-propylene glycol dibenzoate, 2,4-pentylene glycol dibenzoate, 3-methyl-2,4-pentylene glycol dibenzoate, 3-ethyl-2,4-pentylene glycol dibenzoate, 3-propyl-2,4-pentylene glycol dibenzoate, 3-butyl-2,4-pentylene glycol dibenzoate, 3,3-dimethyl-2,4-pentylene glycol dibenzoate, 2-methyl-1,3-pentylene glycol dibenzoate, 2,2-dimethyl-1,3-pentylene glycol dibenzoate, 2-ethyl-1,3-pentylene glycol dibenzoate, 2-butyl-1,3-pentylene glycol dibenzoate, 2-methyl-1,3-pentylene glycol dibenzoate, 2-ethyl-1,3-pentylene glycol dibenzoate, 2-propyl-1,3-pentylene glycol dibenzoate, 2-butyl-1,3-pentylene glycol dibenzoate, 2,2-dimethyl-1,3-pentylene glycol dibenzoate, 2-methyl-1,3-pentylene glycol dibenzoate, 2,2-dimethyl-1,3-pentylene glycol dibenzoate, 2-ethyl-1,3-pentylene glycol dibenzoate, 2-butyl-1,3-pentylene glycol dibenzoate, 2,2,4-trimethyl-1,3-pentylene glycol dibenzoate, 3-methyl-3-butyl-2,4-pentylene glycol dibenzoate, 2,2-dimethyl-1,5-pentylene glycol dibenzoate, 1,6-hexylene glycol dibenzoate, 6-ene-2,4-heptylene glycol dibenzoate, 2-methyl-6-ene-2,4-heptylene glycol dibenzoate, 3-methyl-6-ene-2,4-heptylene glycol dibenzoate, 4-methyl-6-ene-2,4-heptylene glycol dibenzoate, 5-methyl-6-ene-2,4-heptylene glycol dibenzoate, 6-methyl-6-ene-2,4-heptylene glycol dibenzoate, 3-ethyl-6-ene-2,4-heptylene glycol dibenzoate, 4-ethyl-6-ene-2,4-heptylene glycol dibenzoate, 5-ethyl-6-ene-2,4-heptylene glycol dibenzoate, 6-ethyl-6-ene-2,4-heptylene glycol dibenzoate, 3-propyl-6-ene-2,4-heptylene glycol dibenzoate, 4-propyl-6-ene-2,4-heptylene glycol dibenzoate, 5-propyl-6-ene-2,4-heptylene glycol dibenzoate, 6-propyl-6-ene-2,4-heptylene glycol dibenzoate, 3-butyl-6-ene-2,4-heptylene glycol dibenzoate, 4-butyl-6-ene-2,4-heptylene glycol dibenzoate, 5-butyl-6-ene-2,4-heptylene glycol dibenzoate, 6-butyl-6-ene-2,4-heptylene glycol dibenzoate, 3, 5-dimethyl-6-ene-2,4-heptylene glycol dibenzoate, 3,5-diethyl-6-ene-2,4-heptylene glycol dibenzoate, 3,5-dipropyl-6-ene-2,4-heptylene glycol dibenzoate, 3,5-dibutyl-6-ene-2,4-heptylene glycol dibenzoate, 3,3-dimethyl-6-ene-2,4-heptylene glycol dibenzoate, 3,3-diethyl-6-ene-2,4-heptylene glycol dibenzoate, 3,3-dipropyl-6-ene-2,4-heptylene glycol dibenzoate, 3,3-dibutyl-6-ene-2,4-heptylene glycol dibenzoate, 3,5-heptylene glycol dibenzoate, 2-methyl-3,5-heptylene glycol dibenzoate, 3-methyl-3,5-heptylene glycol dibenzoate, 4-methyl-3,5-heptylene glycol dibenzoate, 5-methyl-3,5-heptylene glycol dibenzoate, 6-methyl-3,5-heptylene glycol dibenzoate, 3-ethyl-3,5-heptylene glycol dibenzoate, 4-ethyl-3,5-heptylene glycol dibenzoate, 5-ethyl-3,5-heptylene glycol dibenzoate, 3-propyl-3,5-heptylene glycol dibenzoate, 4-propyl-3,5-heptylene glycol dibenzoate, 3-butyl-3,5-heptylene glycol dibenzoate, 2,3-dimethyl-3,5-heptylene glycol dibenzoate, 2,4-dimethyl-3,5-hep

Assignees

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

Inventors

• Xia Xianzhi
• Zhao Jin
• Li Weili
• Liu Yuexiang
• Ling Yongtai
• Gao Ping
• Tan Yang
• Gao Futang
• Peng Renqi
• Zhang Jigui

Classifications

• C08F110/06 Primary

  Propene · CPC title

• C08F10/06 Primary

  Propene · CPC title

• C08F4/649 Primary

  organic · CPC title

• C08F4/6425

  containing magnesium · CPC title

• C08F4/6421

  Titanium tetrahalides with organo-aluminium compounds · CPC title