ES2723148B2 - CATALYST COMPONENT, CATALYST AND PRE-POLYMERIZATION CATALYST FOR THE POLYMERIZATION OF OLEFINS AND METHOD FOR THE POLYMERIZATION OF OLEFINS - Google Patents

Description

DESCRIPTION

Catalyst component, catalyst and prepolymerization catalyst for olefin polymerization, and method for olefin polymerization

CROSS REFERENCE TO RELATED REQUESTS

This application claims the priority of the Chinese patent application CN 201610846996.7, entitled "Catalyst component, catalyst and prepolymerization catalyst for olefin polymerization, and method for olefin polymerization" and filed on October 19, 2017, all of which is incorporated herein by reference.

FIELD OF DISCLOSURE

The present disclosure relates to the technical field of olefin polymerization, and in particular, to a catalyst component for the polymerization of olefins, to a catalyst for the polymerization of olefins, to a prepolymerization catalyst obtained by prepolymerization of the catalyst, and to a method for the polymerization of olefins.

BACKGROUND OF THE DISCLOSURE

A Ziegler-Natta catalyst is generally composed of magnesium, titanium, halogen, and a Lewis base, etc. The Lewis base is an organic compound that contains oxygen, nitrogen, phosphorus, silicon, and the like. Sometimes, in order to improve the overall performance of a catalyst, two or more Lewis base compounds are added during catalyst preparation. For example, it is disclosed in Chinese patents 201310517877.3, 201310518069.9, 201310518086.2 and 201310518285.3 that the overall performance of a catalyst can be improved by using malonate compounds together with other Lewis base compounds, but the activity of the catalyst is not high enough. , which is not beneficial for energy saving and efficiency increase. It is disclosed in Chinese patents CN201510708748.1 and CN201510708579.1 that phthalic anhydride is introduced into the above system, and the activity of a catalyst is improved. However, the introduction of phthalic anhydride will result in a final catalyst obtained comprising more or less one phthalate compound, and the residue of the phthalate compound will eventually remain in a polymer. He Phthalate compound is an environmental hormone, which will influence human health, such as fertility and development, and therefore it is undesirable for the polymer to comprise such a substance.

Although research and development on the Ziegler-Natter catalyst has been carried out for decades, how to further improve the function of the catalyst is still an endeavor in the field, especially how to achieve a balance between various properties of the catalyst. For example, how to avoid the presence of a phthalate compound in the catalyst while maintaining high catalytic activity is sought.

SUMMARY OF DISCLOSURE

The present disclosure is intended to provide a catalyst component, a catalyst and a prepolymerization catalyst for olefin polymerization, and a method for olefin polymerization. When used for olefin polymerization, especially propylene polymerization, the catalyst component or catalyst provided herein has high catalytic activity, and does not comprise a phthalate compound.

According to a first aspect of the present disclosure, there is provided an olefin polymerization catalyst component, comprising magnesium, titanium, halogen, Lewis A base compound as shown in formula (I), and another compound of Lewis base B, wherein a molar ratio of a total amount of compound A and compound B to magnesium is in a range of (0.03 0.20): 1,

COORa

Re ---- C ------- Rd

in formula (I), Ra and Rb may be identical or different, selected from C ¹ -C ²⁰ substituted or unsubstituted alkenyl, C ² -C ²⁰ substituted or unsubstituted, cycloalkyl C ³ -C ²⁰ substituted or unsubstituted, aryl C ⁶ -C ²⁰ substituted or unsubstituted alkaryl, C ⁷ -C ²⁰ substituted or unsubstituted aralkyl C ⁷ -C ²⁰ substituted or unsubstituted polycyclic aromatic groups or C ¹⁰ - C ²⁰ substituted or unsubstituted, preferably selected from C ¹ -C ¹⁰ linear or branched substituted or unsubstituted alkyl, C ⁵ -C ⁸ substituted or unsubstituted cycloalkyl, C ⁶ -C ¹⁰ substituted or unsubstituted aryl, C ⁷ alkaryl - C ¹⁰ substituted or unsubstituted, or C ⁷ -C ¹⁰ substituted or unsubstituted aralkyl, and more preferably selected from substituted or unsubstituted C ² -C ⁶ linear or branched alkyl; Rc and Rd may be identical or different from each other, selected from hydrogen, substituted or unsubstituted linear or branched C ¹ -C ²⁰ alkyl, substituted or unsubstituted C ² -C ²⁰ alkenyl, substituted or unsubstituted C ³ -C ²⁰ cycloalkyl , aryl C ⁶ -C ²⁰ substituted or unsubstituted, C ⁷ -C ²⁰ alkaryl substituted or unsubstituted aralkyl C ⁷ -C ²⁰ substituted or unsubstituted polycyclic aromatic groups or ^{C10 20} substituted or unsubstituted, preferably selected from C ¹ -C ¹⁰ linear or branched substituted or unsubstituted alkyl , C ² -C ¹⁰ substituted or unsubstituted cycloalkyl C ⁵ -C ¹⁰ substituted or unsubstituted, aryl C ⁶ -C ¹⁰ substituted or unsubstituted alkaryl, C ⁷ -C ¹⁰ substituted or unsubstituted, C ⁷ -C ¹⁰ substituted or unsubstituted aralkyl or C ¹⁰ -C ¹⁵ substituted or unsubstituted polycyclic aromatic groups, more preferably selected from substituted or unsubstituted linear or branched C ² -C ⁶ alkyl, C ³ -C ⁶ substituted alkenyl or unsubstituted, C6-C8 substituted or unsubstituted aryl or C ⁷ -C ¹⁰ substituted or unsubstituted aralkyl, and most preferably C ² -C ⁶ linear or branched alkyl or C ³ -C ⁶ alkenyl; and Rc and Rd can optionally be joined together to form a ring.

After exhaustive study, the inventors of the present invention found that when the molar ratio of a total amount of compound A and compound B to magnesium in the catalyst component is controlled in a range of (0.03-0.20 ): 1, preferably in a range of (0.03-0.17): 1, and more preferably in a range of (0.04-0.14): 1, the catalytic activity thereof can be significantly improved. According to some embodiments, the molar ratio of a total amount of compound A and compound B to magnesium may be 0.03: 1, 0.04: 1, 0.05: 1, 0.06: 1, 0, 07: 1, 0.08: 1, 0.09: 1, 0.10: 1, 0.11: 1, 0.12: 1, 0.13: 1, 0.14: 1, 0.15: 1, 0.16: 1, 0.17: 1, 0.18: 1, 0.19: 1, or 0.20: 1, etc.

Furthermore, the inventors found that when a molar ratio of compound A to compound B is controlled in a specific range, the catalytic activity thereof can be significantly improved. According to a preferred embodiment of the present disclosure, in the catalyst component, the molar ratio of compound A to compound B is in a range of (0.21-2.0): 1, preferably (0.31.6): 1, more preferably (0.4-1.5): 1, and most preferably (0.5-1.4): 1. According to some embodiments, the molar ratio of compound A to compound B can be 0.3: 1, 0.4: 1, 0.5: 1, 0.6: 1, 0.7: 1, 0, 8: 1, 0.9: 1, 1.0: 1, 1.1: 1, 1.2: 1, 1.3: 1, 1.4: 1, 1.5: 1, 1.6: 1, 1.7: 1, 1.8: 1, or 1.9: 1, etc.

se refiere a alquilo lineal de C¹-C²⁰ o alquilo ramificado de C³-C²⁰, e incluye, pero no se limita a, metilo, etilo, n-propilo, isopropilo, n-butilo, sec-butilo, isobutilo, terc-butilo, n-pentilo, isopentilo, terc-pentilo, neopentilo, n-hexilo, n-heptilo, n-octilo y n-decilo.In the present disclosure, the term "alkyl

refers to C ¹ -C ²⁰ linear alkyl or C ³ -C ²⁰ branched alkyl, and includes, but is not limited to, methyl, ethyl, n-propyl, isopropyl, n-butyl, sec-butyl, isobutyl, tert-butyl, n-pentyl, isopentyl, tert-pentyl, neopentyl, n-hexyl, n-heptyl, n-octyl, and n-decyl.

In the present disclosure, examples of C ³ -C ²⁰ cycloalkyl include, but are not limited to, cyclopropyl, cyclopentyl, cyclohexyl, 4-methylcyclohexyl, 4-ethylcyclohexyl, 4-npropylcyclohexyl, and 4-n-butylcyclohexyl.

In the present disclosure, examples of C ⁶ -C ²⁰ aryl include, but are not limited to, phenyl, 4-methylphenyl, 4-ethylphenyl, dimethylphenyl, vinylphenyl.

se refiere a alquenilo lineal de C¹-C²⁰ o alquenilo ramificado de C³-C²⁰, e incluye, pero no se limita a, vinilo, alilo y butenilo.In the present disclosure, the term "alkenyl

refers to C ¹ -C ²⁰ linear alkenyl or C ³ -C ²⁰ branched alkenyl, and includes, but is not limited to, vinyl, allyl, and butenyl.

In the present disclosure, examples of C ⁷ -C ²⁰ aralkyl include, but are not limited to, phenylmethyl, phenylethyl, phenyl-n-propyl, phenylisopropyl, phenyl-n-butyl, and phenyl-tert-butyl.

In the present disclosure, examples of C ⁷ -C ²⁰ alkaryl include, but are not limited to, tolyl, ethylphenyl, n-propylphenyl, isopropylphenyl, n-butylphenyl, and tert-butylphenyl.

In the present disclosure, examples of C ¹⁰ -C ²⁰ polycyclic aromatic groups include, but are not limited to, naphthyl, anthracenyl, phenanthryl, fluorenyl.

Specifically, the compound as shown in formula (I) is preferably selected from a group consisting of diethyl dipropylmalonate, dipropyl dipropylmalonate, diethyl diisobutylmalonate, diethyl di-n-butylmalonate, diethyl di-tertbutylmalonate, dibenzylmalonate diethyl, diethyl phenylethylmalonate, dipropyl diisobutylmalonate, dipropyl di-n-butylmalonate, dipropyl di-tert-butylmalonate, dibutyl diisobutylmalonate, dibutyl di-n-butylmalonate, dibutyl di-tertbutylmalonate, diisobutylmalonate dipentyl-n-butylmalonate, dipentyl di-tert-butylmalonate, dihexyl diisobutylmalonate, dihexyl di-n-butylmalonate, dihexyl di-tert-butylmalonate, diheptyl diisobutylmalonate, diheptyl di-n-butylmalonate, dihexyl di-tert-butylmalonate, diheptyl diphynyl Dipropyl di-n-pentylmalonate, dipropyl dihexylmalonate, dipropyl phenylethylmalonate, dipropyl phenylmethylmalonate, dipropyl phenylpropylmalonate, dipropyl phenyl-nbutylmalonate, dipropyl phenylisobutylmalonate, dipropyl phenylethylmalonate, dipropyl dipropyl phenyl-dipropylmalonate, dipropyl phenyl-dipropylmalonate Dipropyl benzylmethylmalonate, dipropyl benzylmethylmalonate, dipropyl benzylpropylmalonate, dipropyl benzyl-n-butylmalonate, dipropyl benzyl isobutylmalonate, dipropyl benzyl-n-pentylmalonate, dipropyl benzyl-n-pentylmalonate, dipropyl phenylmethyl-diputyl phenylmethyl malonate, diputylmethylphenyl dipropyl phenylpropylmalonate, diputylmethylphenyl dipropylphenylpropylmalonate dibutyl, phenyl-n-butylma dibutyl lonate, dibutyl phenylisobutylmalonate, dibutyl phenylisopentylmalonate, dibutyl phenyl-n-pentylmalonate, dibutyl diphenylmalonate, dibutyl benzylethylmalonate, dibutyl benzylmethylmalonate, dibutyl benzyl malonate benzylpropylmalonate, dibutyl butyl benzyl benzylmalonate, dibutylbutyl benzyl malonate, benzylpropyl malonate, dibutylbutyl benzyl malonate, benzylpropylmalonate, dibutylbutyl benzylmalonate dibutyl, dibutyl-benzyl-n-pentylmalonate, dibutyl dibenzylmalonate, dipentyl phenylethylmalonate, dipentyl phenylmethylmalonate, dipentyl phenylpropylmalonate, dipentyl phenyl-n-butylmalonate, dipentyl phenyl isobutylmalonate, dipentyl phenylethyl pentylmalonate, dipentyl phenyl-pentylmalonate, dipentyl phenyl-pentylmalonate dipentyl diphenylmalonate, dipentyl benzylethylmalonate, dipentyl benzylmethylmalonate, dipentyl benzylpropylmalonate, dipentyl benzyl-n-butylmalonate, dipentyl benzyl isobutylmalonate, dipentyl benzyl isopentylmalonate, dipentyl benzyl methylmalonate, dipentyl phenylemal dimethyl dibenzylmalonate dicyclohexyl onate, dicyclohexyl phenylmethylmalonate, dicyclohexyl phenylpropylmalonate, dicyclohexyl phenyln-butylmalonate, dicyclohexyl phenylisobutylmalonate, dicyclohexyl phenylisopentylmalonate, dicyclohexyl phenyl-n-pentylmalonate, dicyclohexyl dimethyl benzylpropylmalonate, dicyclohexyl diphenylpropyl dicyclohemalonate, deylocyl dimethylpropyl benzylmalonate, dicyclohexyl dimethyl benzylpropylmalonate, dicyclohexyl dimethyl benzylpropylmalonate, dicyclohexyl dimethyl benzylpropylmalonate, dicyclohexyl dimethyl benzylpropylmalonate, dicyclohexyl benzyloxypropyl dimethylmalonate dicyclohexyl benzyl-n-butylmalonate, dicyclohexyl benzyl isobutylmalonate, dicyclohexyl benzyl isopentylmalonate, dicyclohexyl benzyl-n-pentylmalonate, dicyclohexyl dibenzylmalonate, diphenyl phenylmethylmalonate, diphenylphenyl phenyl-phenylopenylmalonate, diphenyl phenyl-phenylopenylmalonate, diphenyl phenyl-phenylopenylmalonate, diphenyl phenylphenylphenyl ester Diphenyl phenyl-npentylmalonate, diphenyl diphenylmalonate, diphenyl benzylethylmalonate, diphenyl benzylmethylmalonate, diphenyl benzylpropylmalonate, diphenyl benzyl-n-butylmalonate, benzyl isobutylmalonate diphenyl, diphenyl benzyl isopentylmalonate, diphenyl benzyl pentylmalonate, diphenyl dibenzylmalonate, dicyclohexyl fluorenylmethylmalonate, dicyclohexyl fluorenylpropylmalonate, fluorenyl-n-butylmalonate dicyclohexyl, dicyclohexyl fluorenyl isobutylmalonate, dicyclohexyl fluorenylisopentylmalonate, diphenyl diphenyl-n-pentylmalonate dipyclohexyl, dicyclohexyl difluorenylmalonate, diphenyl allylmethylmalonate, diphenyl allylpropylmalonate, diphenyl allylobylonyl-allylopenylmalonate, diphenyl allyl-nylopenyl allylopenylonate diphenyl, diphenyl diallylmalonate, dimethyl allylmethylmalonate, dimethyl allylpropylmalonate, dimethyl allyl-n-butylmalonate, dimethyl allylisobutylmalonate, dimethyl allylisopentylmalonate, dimethyl allyl-n-pentylmalonate, dimethyl diallylmalonate, dimethyl alkylmethylmalonate, diethyl alkylmalonate Diethyl allyl-n-butylmalonate, diethyl allylisobutylmalonate, diethyl allylisopentylmalonate, diethyl allyl-npentylmalonate, diethyl diallylmalonate, dipropyl allylmethylmalonate, dipropyl allylpropylmalonate, dipropy allyl-n-butylmalonate, dipropyl allylmalonate, dipropyl allylmalonate, Dipropyl allyl isopentylmalonate, dipropyl allyl-n-pentylmalonate, dipropyl diallylmalonate, dibutyl allylmethylmalonate, dibutyl allylpropylmalonate, dibutyl allyln-butylmalonate, dibutyl allyl isobutylmalonate, dibutyl dibutyl allylmalomalonate, dibutyl dibutyl allyl malomalonate dipentyl allylmethylmalonate, dipentyl allylpropylmalonate, dipentyl allyl-n-butylmalonate, dipentyl allyl isobutylmalonate, dipentyl allylisopentylmalonate, dipentyl allyl-n-pentylmalonate, dipentyl diallylmalonate, dicyclohenyl allylmethylmalonate, dicyclohexyl allylmethylmalonate, dicyclohexyl allylpropylmalonate dicyclohexyl, dicyclohexyl allyl isobutylmalonate, dicyclohexyl allylisopentylmalonate, dicyclohexyl allyl-n-pentylmalonate and dicyclohexyl diallylmalonate, more preferably selected from diethyl diisobutylmalonate, diethyl di-nbutyl malonate, di-tert-butyl malonate, di-tert-butyl malonate, di-tert-butyl malonate di-n -dipropyl butylmalonate, dipropyl di-tert-butylmalonate, diethyl dibenzylmalonate, dipropyl dibenzylmalonate, diethyl phenylethylmalonate, dipropyl phenylethylmalonate, diethyl dipropylmalonate, dipropyl dipropylmalonate, diethyl dialylmalonate, and dipropyl diallylmalonate.

According to the present disclosure, the other Lewis base compound B refers to another Lewis base different from compound A.

According to one embodiment of the present disclosure, compound B is at least one of an ether compound, a monocarboxylic ester compound, and a dicarboxylic ester compound. Preferably, compound B is at least one of 1,3-diether compound, a polyol ester compound (polyphenol), and a succinic acid ether compound.

More preferably, compound B is at least one compound as shown in formula (II),

wherein R ¹ and R ² are identical or different, selected from C ¹ -C ²⁰ substituted or unsubstituted alkenyl, C ² -C ²⁰ substituted or unsubstituted cycloalkyl , C ³ -C ²⁰ substituted or unsubstituted, aryl C ⁶ -C ²⁰ substituted or unsubstituted, C ⁷ -C ²⁰ alkaryl substituted or unsubstituted aralkyl C ⁷ -C ²⁰ substituted or unsubstituted polycyclic aromatic groups or ^{C10 20} substituted or unsubstituted; and M is a divalent linking group, preferably selected from a group consisting of C ¹ -C ^20, C ³ -C ²⁰ cycloalkylene, arylene C ⁶ -C ²⁰ and a combination thereof. The alkylene, cycloalkylene, and / or arylene is optionally substituted with C ¹ -C ²⁰ alkyl, and the substituent is optionally attached to form a ring or a plurality of rings. A carbon atom or / and a hydrogen atom in M is optionally substituted with nitrogen, oxygen, sulfur, silicon, phosphorus or a halogen atom.

According to a preferred embodiment of the present disclosure, M is selected from at least one of the divalent groups as shown in formula (III), formula (IV), formula (V), formula (VI), and formula (VII ):

Formula (III) Formula (IV) Formula (V) Formula (VI) Formula (VII).

In formula (III), R ' ³ -R' ⁸ are identical or different from each other, selected from hydrogen, halogen, substituted or unsubstituted C ¹ -C ²⁰ alkyl, substituted or unsubstituted C ² -C ²⁰ alkenyl, cycloalkyl C ³ -C ²⁰ substituted or unsubstituted, aryl C ⁶ -C ²⁰ substituted or unsubstituted alkaryl, C ⁷ -C ²⁰ substituted or unsubstituted, aralkyl C ⁷ -C ²⁰ substituted or unsubstituted polycyclic aromatic groups ^{C10 20} substituted or unsubstituted, or substituted or unsubstituted C ¹ -C ²⁰ ester, and R ' ⁷ and R'8 are optionally joined to form a ring or a plurality of rings.

In formula (IV), R1-R4 are identical or different, selected from alkyl Ci-C ²⁰ substituted or unsubstituted alkyl , C ² -C ²⁰ substituted or unsubstituted cycloalkyl , C ³ -C ²⁰ substituted or unsubstituted , aryl C ⁶ -C ²⁰ substituted or unsubstituted, C ⁷ -C ²⁰ alkaryl substituted or unsubstituted aralkyl C ⁷ -C ²⁰ substituted or unsubstituted, or polycyclic aromatic groups ^{20 C10} substituted or unsubstituted, and R1 -R4 are attached to one ring or a plurality of rings.

In formula (V), formula (VI), and formula (VII), R ³ , R ⁴ , and R ⁵ are independently selected from hydrogen, halogen, substituted or unsubstituted C ¹ -C ²⁰ alkyl, C ² -C alkenyl ²⁰ substituted or unsubstituted cycloalkyl , C ³ -C ²⁰ substituted or unsubstituted, aryl C ⁶ -C ²⁰ substituted or unsubstituted, C ⁷ -C ²⁰ alkaryl substituted or unsubstituted aralkyl C ⁷ -C ²⁰ substituted or unsubstituted, or C ¹⁰ -C ²⁰ substituted or unsubstituted polycyclic aromatic groups.

In the present disclosure, the term "substituted or unsubstituted" means a hydrogen atom which is attached to a carbon of the described group can be substituted by a group which is selected from a group consisting of C ¹ -C ¹⁰ alkyl, C alkenyl ² -C ¹⁰ , C ² -C ²⁰ alkynyl, halogen, nitro group, cyano group, C ⁰ -C ¹⁰ alkylamino and other common substituent groups.

Specifically, the compound as shown in formula (II) is preferably selected from a group consisting of 2,4-pentanediol dibenzoate, 2,4-pentanediol di-npropyldibenzoate, 3,5-heptanediol dibenzoate, di 3,5-heptanediol -n-propyldibenzoate, 4-ethyl-3,5-heptanediol dibenzoate, 3,5-heptanediol di-p-methylbenzoate, 3,5-heptanediol di-o-methylbenzoate, di-p 3,5-heptanediol chlorobenzoate, 3,5-heptanediol di-o-chlorobenzoate, 3,5-heptanediol di-p-methoxybenzoate, 3,5-heptanediol di-o-methoxybenzoate, di-m-methoxybenzoate 3,5-heptanediol, 2-methyl-3,5-heptanediol dibenzoate, 4-methyl-3,5-heptanediol dibenzoate, 6-methyl-3,5-heptanediol dibenzoate, 4-ethyl-3 dibenzoate , 5-heptanediol, 5-ethyl-3,5-heptanediol dibenzoate, 4-propyl-3,5-heptanediol dibenzoate, 4-butyl-3,5-heptanediol dibenzoate, 2,4-dimethyl-3 dibenzoate , 5-heptanediol, 2,6-dimethyl-3,5-heptanediol dibenzoate, 4,4-dimethyl-3,5-heptanediol dibenzoate, dibenzoate 6,6-dimethyl-3,5-heptanediol, 4,6-dimethyl-3,5-heptanediol dibenzoate, 4,4-dimethyl-3,5-heptanediol dibenzoate, 6,6-dimethyl-3 dibenzoate, 5-heptanediol, 2-methyl-4-ethyl-3,5-heptanediol dibenzoate, 4-methyl-4-ethyl-3,5-heptanediol dibenzoate, 2-methyl-4-propyl-3,5-dibenzoate heptanediol, 4-methyl-4-propyl-3,5-heptanediol dibenzoate, di- (acid p-chlorobenzoic) of 6-methyl-2,4-heptanediol, ester of di- (p-methylbenzoic acid) of 6-methyl-2,4-heptanediol, ester of di (m-methylbenzoic acid) of 6-methyl- 2,4-heptanediol, 2,2,6,6-tetramethyl-3,5-heptanediol dibenzoate, 4-methyl-3,5-octanediol dibenzoate, 4-ethyl-3,5-octanediol dibenzoate, dibenzoate 4-propyl-3,5-octanediol, 4-butyl-3,5-octanediol dibenzoate, 4,4-dimethyl-3,5-octanediol dibenzoate, 4-methyl-4-ethyl-3,5-dibenzoate octanediol, 2-methyl-4-ethyl-3,5-octanediol dibenzoate, 2-methyl-6-ethyl-3,5-octanediol dibenzoate, 5-methyl-4,6-nonanediol dibenzoate, 5- dibenzoate ethyl-4,6-nonanediol, 5-propyl-4,6-nonanediol dibenzoate, 5-butyl-4,6-nonanediol dibenzoate, 5,5-dimethyl-4,6-nonanediol dibenzoate, 5- dibenzoate methyl-4-ethyl-4,6-nonanediol, 5-phenyl-4,6-nonanediol dibenzoate, 4,6-nonanediol dibenzoate, 4-butyl-3,5-heptanediol dibenzoate, 1,2-dibenzoate phenylene, 3-methyl-5-tert-butyl-1,2-phenylene dibenzoate, 3,5-diisopro dibenzoate pil-1,2-phenylene, 3,6-dimethyl-1,2-phenylene dibenzoate, 4-tert-butyl-1,2-phenylene dibenzoate, 1,2-naphthalene dibenzoate, 2,3-dibenzoate naphthalene, dibenzoic acid-1,8-naphthylate, di-4-methylbenzoic acid-1,8-naphthylate, di-3-methylbenzoic acid-1,8-naphthylate, di-2-methylbenzoic acid-1,8-naphthylate, di-4-ethylbenzoic acid-1,8-naphthylate, di-4-n-propylbenzoic acid-1,8-naphthylate, di-4-isopropylbenzoic acid-1,8-naphthylate, di-4-n-butylbenzoic acid- 1,8-naphthylate, di-4-isobutylbenzoic acid-1,8-naphthylate, di-4-tert-butylbenzoic acid-1,8-naphthylate, di-4-phenylbenzoic acid-1,8-naphthylate, di- 4-fluorobenzoic-1,8-naphthylate, di-3-fluorobenzoic acid-1,8-naphthylate and di-2-fluorobenzoic acid-1,8-naphthylate.

According to a preferred embodiment of the present disclosure, in the catalyst component, the magnesium content measured by magnesium element is 10-25% by weight; titanium content measured by titanium element is 17% by weight; the content of compound A is 1-20% by weight; and the content of compound B is 1-20% by weight.

According to a preferred embodiment of the present disclosure, when compound A is di-n-butyl diethylmalonate, and compound B is 2,4-pentanediol di-n-propylbenzoate, the molar ratio of compound A to compound B is (0.6-1.0): 1, and the molar ratio of a total amount of compound A and compound B with respect to magnesium is (0.1-0.14): 1, the catalyst obtained has an activity extremely high catalytic.

The catalyst component in the present disclosure can be prepared by a method comprising the following steps of contacting a magnesium compound, a titanium compound, the compound as shown in formula (I) and the compound as shown in formula (II) with each other to obtain the catalyst component.

In a specific embodiment of the present disclosure, the catalyst component is prepared by a method comprising the following steps.

1) A magnesium compound is dissolved in a system comprising compound A, and a precipitating agent is added to precipitate the solids.

2) The solids precipitated in step 1) are treated with a titanium compound, and compound B is added thereto and / or before a process of treating the solids with the titanium compound.

In step 1), "a magnesium compound that is dissolved in a system comprising compound A" comprises two circumstances: a magnesium compound is first dissolved in a solvent system to obtain a solution, and then it is added compound A; and a magnesium compound is dissolved in a system made from compound A and a solvent system together.

In the present disclosure, the magnesium compound can be selected from a group consisting of magnesium dihalide, magnesium alkoxy, magnesium alkyl, a hydrate or an alcohol adduct of magnesium dihalide, or a derivative formed by replacing a halogen atom. magnesium dihalide with alkoxy or haloalkoxy; and preferably, the magnesium compound is selected from a group consisting of magnesium dihalide or magnesium dihalide alcohol adduct, such as magnesium dichloride, magnesium dibromide, magnesium dihalide, and alcohol adduct thereof.

In the present disclosure, the titanium compound can be a titanium compound represented by the formula TiXm (OR ') ⁴ -m. In the formula, R 'is C ¹ -C ²⁰ hydrocarbyl, X is halogen, and 1 <m <4. The titanium compound is preferably selected from a group consisting of titanium tetrachloride, titanium tetrabromide, titanium tetraiodide, titanium tetrabutoxylate, titanium tetraethoxylate, titanium monochlorotrietoxylate, titanium dichlorodiethoxylate or titanium trichloromonoethoxylate, and more preferably titanium trichloromonoethoxylate. titanium.

In the present disclosure, the precipitating agent can be selected from metal halides, such as titanium halides, iron halides, or zinc halides; preferably, the precipitating agent is a titanium halide, such as a titanium tetrachloride or a titanium tetrabromide; and more preferably, the precipitating agent is a titanium tetrachloride.

A solid catalyst component of the present disclosure can be prepared according to a following method, but a method for preparing the catalyst component involved in the present disclosure is not limited thereto.

First, a magnesium compound is dissolved in a solvent system consisting of an organic epoxide compound, an organic phosphorous compound, and an inert diluent to form a uniform solution. After that, in the presence of a coprecipitation agent having a special structure, that is, in the presence of compound A as shown in formula (I), the obtained uniform solution is mixed with a precipitating agent (such as a titanium compound). Then the temperature is increased and a solid precipitates. The solid is treated with an electron donor compound so that the electron donor compound is charged on the solid. The solid is then treated with titanium tetrahalide or titanium tetrahalide and the inert diluent.

The organic epoxide compound, the organic phosphorus compound and the coprecipitation agent are disclosed in Chinese patent CN85100997, and relevant content is cited herein by reference.

Specifically, the magnesium compound can be dissolved in a solvent system consisting of the organic epoxide compound and the organic phosphorus compound. The organic epoxide compound comprises at least one of C 2 to 8 aliphatic olefin, dialkene, halogenated aliphatic olefin, dialkene oxide, glycidyl ethers and inert ethers. Specific compounds are as follows: ethylene oxide, propylene oxide, butylene oxide, butadiene oxide, butadiene dioxide, epoxy chloropropane, methyl glycidyl ether, diglycidyl ether, and terahydrofuran.

The organic phosphorus compound is at least one selected from trimethyl orthophosphate, triethyl orthophosphate, tributyl orthophosphate, triphenyl orthophosphate, trimethyl phosphite, triethyl phosphite, tributyl phosphite, and triphenylmethyl phosphate.

In a specific embodiment, the solid catalyst component of the present disclosure is prepared according to a method disclosed in patent CN85100997. First, a magnesium compound is dissolved in a solvent system consisting of an organic epoxide compound, an organic phosphorous compound, and an inert diluent to form a uniform solution. After that, the obtained uniform solution is mixed with a titanium compound in the presence of a coprecipitating agent having a special structure, that is, in the presence of compound A as shown in formula (I). At a temperature in a range of -40 ° C-50 ° C, at most in a range of -35 ° C-0 ° C, the titanium compound is dropped into the above magnesium halide solution. Then, the temperature of the reaction mixture is increased to a range of 60 ° C-80 ° C, and an electron donor compound is added thereto. A suspension liquid is stirred for 0-3 hours at this temperature, and then the mother liquor is removed by filtration. After washing with an inert diluent, a solid is obtained. Then, treatment is carried out with a mixture of a titanium halide and an inert diluent at a temperature in a range of 60 ° C-130 ° C for 1 to 5 times. A solid obtained is washed with an inert diluent, and a solid catalyst is obtained after drying is performed. Measuring by magnesium per mole, a dosage of the organic epoxide compound is in a range of 0.2-10 mole; a dosage of the organic phosphorus compound is in a range of 0.1-3 mol; the compound as shown in formula (I) is in a range of 0.001-30 mol, preferably in a range of 0.05-15 mol; a dosage of the titanium compound is in a range of 3-40 mol, preferably in a range of 5-30 mol; and a dosage of the electron donor compound is in a range of 0.005-15 mol, preferably in a range of 0.05-5 mol.

According to a second aspect of the present disclosure, there is provided an olefin polymerization catalyst, comprising a reaction product of the following components.

to. the above catalyst component;

b. an alkylaluminum compound, which is preferably an alkylaluminum compound represented by the formula AlR''nX ³ -n, wherein R '' is hydrogen or C ¹ -C ²⁰ hydrocarbyl; X is halogen; and 0 <n <3, the alkyl aluminum compound can be specifically selected from a group consisting of triethylaluminum, tripropylaluminum, tri-n-butylaluminum, triisobutylaluminum, tri-n-octylaluminum, hydride of diethylaluminum, diisobutylaluminum hydride, diethylaluminum chloride, diisobutylaluminum chloride, sesquiethylaluminum chloride, ethylaluminum dichloride, and is preferably selected from triethylaluminum and triisobutylaluminum;

c. optionally, an external electron donor component, which is preferably an organosilicon compound represented by the formula (R5) kSi (OR6) ⁴ -k. In the formula, 0 <k <3; R5 is selected from halogen, hydrogen atom, alkyl or haloalkyl, linear or branched C ³ cycloalkyl -C ²⁰ aryl or C ⁶ -C ²⁰ amino; and R6 is alkyl or haloalkyl, linear or branched C ³ -C ²⁰ cycloalkyl, aryl or C ⁶ -C ²⁰ amino.

The expression "optionally, an external electron donor component" means that the external electron donor component may or may not be selected as required. When an olefin polymer with high stereoregularity is needed, it is required to add the external electron donor. Specifically, the organosilicon compound includes, but is not limited to, trimetilmetoxisilicano, trimetiletoxilsilicano, dimetildimetoxisilicano, dimetildietoxilsilicano, difenildimetoxisilicano, difenildietoxilsilicano, feniltrietoxilsilicano, feniltrimetoxisilicano and viniltrimetoxisilicano, ciclohexilmetildimetoxisilicano and methyl tert-butildimetoxisilicano, preferably selected from ciclohexilmetildimetoxisilicano and difenildimetoxisilicano.

In the above catalyst system, preferably, a molar ratio of component a and component b as measured by titanium to aluminum is in a range of 1: (5-1000), preferably 1: (25-100); and a molar ratio of component c and component a as measured by the external electron donor to titanium is (0-500): 1, preferably (25-100): 1.

According to a third aspect of the present disclosure, there is provided a prepolymerization catalyst for the polymerization of olefins, which comprises a prepolymer obtained by prepolymerizing the above catalyst component and / or the above catalyst with olefin. Multiple of prepolymerization is 0.1-1000 g of olefin prepolymer / g of catalyst component, and preferably multiple of prepolymerization is 0.2-500 g of prepolymer / g of solid component of catalyst.

A prepolymerization process can be carried out at a temperature in a range of -20 ° C-80 ° C, preferably in a range of 0 ° -50 ° C, in the gas phase or liquid phase. Prepolymerization steps can be performed as part of a process of continuous polymerization in line, and can also be carried out separately in a batch way.

According to a fourth aspect of the present disclosure, a method for olefin polymerization is provided, performed in the presence of at least one of the above catalyst component, the above catalyst, and the above prepolymerization catalyst. Preferably, the olefin is represented by the formula CH ² = CHR '''. In the formula, R '''is hydrogen, C ¹ -C ¹² alkyl or C ⁶ -C ¹² aryl. The olefin includes, but is not limited to, ethylene, propylene, 1-butylene, 4-methyl-1-amylene, and 1-hexene, and more preferably the olefin is ethylene or propylene. The method for polymerization of olefins is especially suitable for homopolymerization of propylene or for copolymerization of propylene and another olefin.

The catalyst of the present disclosure can be added directly to a reactor to be used in a polymerization process; or the catalyst can be subjected to prepolymerization to obtain a prepolymerization catalyst, in the presence of which subsequent olefin polymerization can be carried out.

The olefin polymerization in the present disclosure can be carried out, according to the known art, in a liquid phase or a gas phase, or in a combination of stages thereof. Common techniques such as a suspension polymerization process and a gas phase fluidized bed process can be used. It is better to use the following reaction conditions: a polymerization temperature is in a range of 0 ° C-150 ° C, preferably in a range of 60 ° C-90 ° C; and a polymerization pressure is in a range of 0.01-10 MPa.

According to the present disclosure, in a catalyst component preparation process, when compound A as shown in formula (I) and another Lewis base compound B, in particular a diol ester compound, are added, a Obtained catalyst has good fluidity, good particle morphology, uniform particle size distribution and excellent all-round performance.

When the catalyst is used in olefin polymerization, in particular propylene polymerization, the catalyst has high activity, and a polymer obtained does not contain a phthalate compound.

Other features and advantages of the present disclosure will be further explained in the later detailed description of the embodiments.

DETAILED DESCRIPTION OF THE REALIZATIONS

Preferred embodiments will be explained in detail in the following description. Although preferred embodiments of the present disclosure are described in the following description, it should be understood that the present disclosure can be implemented in various ways and should not be limited to the embodiments elaborated herein.

Method of measurement

Xylene soluble substance measurement (XS): Xylene soluble substance is measured according to GB / T24282-2009.

Measurement of the content of Lewis base compounds (including compound A and compound B) is as follows. The content of Lewis base compounds on the catalyst is measured using a Waters 600E high performance liquid chromatograph. First, a sample is pretreated using a dilute ethyl acetate-hydrochloric acid solution system to extract Lewis base compounds. High performance liquid chromatograph is used to separate Lewis base compounds and measure a peak area thereof, and an external standard curve is used for correction. A calculation is performed to obtain the percentage content of the Lewis base compounds in the sample.

Propylene polymerization

32.5 mmol of AlEt ³ and 0.01 mmol of methylcyclohexyldimethoxysilicane (CHMMS) were placed in a stainless reactor having a volume of 5 L and sufficiently replaced with propylene gas, and then 10 mg of solid component of catalyst prepared according to the following examples and comparative examples and 1.2 l of hydrogen gas. 2.3 L of liquid propylene was introduced into the resulting mixture. The resulting mixture was heated to 70 ° C and held at 70 ° C for 1 hour. Then, cooling and pressure release were performed, so that a PP powder could be obtained. See table 1 for specific data.

Examples 1-10 and Comparative Examples 1-4

Catalyst Component Preparation

5.0 g of magnesium chloride, 98 ml of methylbenzene, 4.2 ml of epoxychloropropane, and 13.0 ml of tributyl phosphate (TBP) were placed one by one in a reactor sufficiently replaced with high purity nitrogen. With stirring, the resulting mixture was heated to 50 ° C and kept at this temperature for 2.5 hours. After complete dissolution of the solid, a certain amount of compound A was added to the solution obtained. The solution was kept for 1 hour. Then, the solution was cooled to a temperature below -25 ° C. 47 ml of TiCU was added dropwise to the solution within 1 hour, and the solution was slowly heated to 80 ° C to precipitate the solid. Then, a certain amount of compound B was added to the solid. The mixture obtained was kept for 1 hour at 80 ° C. Then, the obtained mixture was filtered, and after that the obtained mixture was washed twice using 70 ml of methylbenzene respectively to obtain solid precipitate. A 40 ml TiCU / 60 ml methylbenzene solution was added to the solid precipitate. The obtained mixture was heated to 110 ° C, held for 1 hour, and filtered; and the same operations were repeated for three times. Then, the obtained mixture was washed twice with hexane at 70 ° C, and washed twice with hexane at room temperature, respectively, to obtain a catalyst component (solid). See Table 1 for specific components and dosage of compound A and compound B.

Table 1

In Table 1, A / B represents a molar ratio of compound A to compound B, and (A + B) / Mg represents a molar ratio of a total amount of compound A and compound B to magnesium.

It can be seen from the data in Table 1 that a catalyst having high activity is obtained by controlling the molar ratio of the total content of the malonate compound and other internal electron donor compound to magnesium in the catalyst component in the range Specific, a catalyst having a higher activity can be obtained. In addition, by controlling the molar ratio of the malonate compound to the other internal electron donor compound in the catalyst component in the specific range, the activity of the catalyst can be improved as well. Furthermore, the polymer obtained using the catalyst component or the catalyst does not contain a phthalate compound.

It should be noted that the above embodiments are provided only to illustrate the present disclosure, rather than restrict the present disclosure. Modifications may be made to this disclosure based on the disclosure of the claims and within the scope and spirit of the present disclosure. Although the above descriptions of the present disclosure involve particular methods, materials, and implementation examples, it does not mean that the present disclosure is limited to the examples disclosed herein. Rather, the present disclosure can be extended to other methods and applications that have the same functions as those of the present disclosure.

Claims (11)

A catalyst component for olefin polymerization, comprising magnesium, titanium, a halogen, a Lewis A base compound as shown in formula (I), and another Lewis B base compound, wherein the molar ratio of the total amount of compound A and compound B to magnesium is in a range of (0.03-0.20): 1, and wherein the molar ratio of compound A to compound B is (0.21-2.0): 1,

wherein R ^a and R ^b may be identical or different, selected from a group consisting of C ¹ -C ²⁰ substituted or unsubstituted alkenyl, C ² -C ²⁰ substituted or unsubstituted cycloalkyl C ³ -C ²⁰ substituted or unsubstituted, aryl C ⁶ -C ²⁰ substituted or unsubstituted alkaryl, C ⁷ -C ²⁰ substituted or unsubstituted aralkyl C ⁷ -C ²⁰ substituted or unsubstituted , or aromatic polycyclic C ¹⁰ -C ²⁰ substituted or substituted, preferably selected from a group consisting of C ¹ -C ¹⁰ alkyl substituted or unsubstituted C ⁵ -C ⁸ cycloalkyl substituted or unsubstituted, aryl C ⁶ -C ¹⁰ substituted or unsubstituted, C ⁷ -C ¹⁰ alkaryl substituted or unsubstituted, or C ⁷ -C ¹⁰ substituted or unsubstituted aralkyl, and more preferably selected from a group consisting of C ² -C ⁶ substituted or unsubstituted alkyl; R ^c and R ^d may be identical or different, selected from a group consisting of hydrogen, C ¹ -C ²⁰ substituted or unsubstituted alkenyl, C ² -C ²⁰ substituted or unsubstituted cycloalkyl , C ³ -C ²⁰ substituted or unsubstituted, aryl C ⁶ -C ²⁰ substituted or unsubstituted, C ⁷ -C ²⁰ alkaryl substituted or unsubstituted aralkyl C ⁷ -C ²⁰ substituted or unsubstituted polycyclic aromatic groups or ^C10 substituted or unsubstituted ²⁰ , preferably selected from a group consisting of C ¹ -C ¹⁰ alkyl substituted or unsubstituted alkenyl, C ² -C ¹⁰ substituted or unsubstituted cycloalkyl C ⁵ -C ¹⁰ substituted or unsubstituted, aryl C ⁶ -C ¹⁰ substituted or unsubstituted C ⁷ -C ¹⁰ alkaryl substituted or unsubstituted aralkyl C ⁷ -C ¹⁰ substituted or unsubstituted polycyclic aromatic groups or ^{C10 15} substituted or unsubstituted, more preferably selected from a group consisting of C ² alkyl -C ⁶ substituted or unsubstituted, C ³ alkenyl -C ⁶ substituted or unsubstituted, C ⁶ -C ⁸ substituted or unsubstituted aryl or C ⁷ -C ¹⁰ substituted or unsubstituted aralkyl; and R ^c and R ^d can optionally be joined together to form a ring; wherein compound B is at least one compound as shown in formula (II):

wherein R ¹ and R ² are identical or different, selected from a group consisting of C ¹ -C ²⁰ substituted or unsubstituted alkenyl, C ² -C ²⁰ substituted or unsubstituted cycloalkyl , C ³ -C ²⁰ substituted or unsubstituted, aryl C ⁶ -C ²⁰ substituted or unsubstituted, C ⁷ -C ²⁰ alkaryl substituted or unsubstituted aralkyl C ⁷ -C ²⁰ substituted or unsubstituted polycyclic aromatic groups or ^C10 substituted or unsubstituted ²⁰ ; and M is a divalent linking group, preferably selected from a group consisting of C ¹ -C ^20, C ³ -C ²⁰ cycloalkylene, arylene C ⁶ -C ²⁰ and a combination thereof; and wherein the alkylene, cycloalkylene and / or arylene may be optionally substituted with C ¹ -C ²⁰ alkyl, and the substituent is optionally attached to form a ring or a plurality of rings, and wherein a carbon atom or / and a hydrogen atom in M can be optionally substituted with nitrogen, oxygen, sulfur, silicon, phosphorus or a halogen atom. 2. The catalyst component according to claim 1, wherein the molar ratio of compound A to compound B is (0.3-1.6): 1, preferably (0.4-1.5): 1, and more preferably (0.5-1.4): 1, such as 0.6: 1, 0.7: 1, 0.8: 1, 0.9: 1, 1.0: 1, 1.1 : 1, 1.2: 1, 1.3: 1 or 1.4: 1. Catalyst component according to claim 1 or 2, wherein the molar ratio of the total amount of compound A and compound B to magnesium is (0.03-0.17): 1, and preferably (0, 04-0.14): 1, such as 0.03: 1, 0.04: 1, 0.05: 1, 0.06: 1, 0.07: 1, 0.08: 1, 0.09 : 1, 0.10: 1, 0.11: 1, 0.12: 1, 0.13: 1, 0.14: 1, 0.15: 1, 0.16: 1, 0.17: 1 , 0.18: 1, 0.19: 1 or 0.20: 1. 4. Catalyst component according to claim 1, wherein M is a divalent linking group as shown in formula (III), formula (IV), formula (V), formula (VI) or formula (VII) ;

(III) (IV) (V) (VI) (VII)) in formula (III), R ³ -R ⁸ are identical or different, selected from a group consisting of hydrogen, halogen, C ¹ -C ²⁰ substituted alkyl or unsubstituted alkyl , C ² -C ²⁰ substituted or unsubstituted cycloalkyl C ³ -C ²⁰ substituted or unsubstituted, aryl C ⁶ -C ²⁰ substituted or unsubstituted alkaryl, C ⁷ -C ²⁰ substituted or unsubstituted, aralkyl C ⁷ -C ²⁰ substituted or unsubstituted aromatic groups C ¹⁰ -C ²⁰ substituted or unsubstituted polycyclics, or C ¹ -C ²⁰ substituted or unsubstituted ester, and R ' ⁷ and R' ⁸ are optionally attached to one ring or a plurality of rings; in formula (IV), R ¹ -R ⁴ are identical or different from each other, selected from a group consisting of hydrogen, halogen, substituted or unsubstituted C ¹ -C ²⁰ alkyl, substituted or unsubstituted C ² -C ²⁰ alkenyl substituted cycloalkyl , C ³ -C ²⁰ substituted or unsubstituted, aryl C ⁶ -C ²⁰ substituted or unsubstituted, C ⁷ -C ²⁰ alkaryl substituted or unsubstituted aralkyl C ⁷ -C ²⁰ substituted or unsubstituted, or polycyclic aromatic groups C ¹⁰ -C ²⁰ substituted or unsubstituted, and R ¹ -R ⁴ are attached to one ring or a plurality of rings; and In formula (V), formula (VI) and formula (VII), R ³ , R ⁴ , and R ⁵ are independently selected from a group consisting of hydrogen, halogen, substituted or unsubstituted C ¹ -C ²⁰ alkyl, alkenyl C ² -C ²⁰ substituted or unsubstituted cycloalkyl , C ³ -C ²⁰ substituted or unsubstituted, aryl C ⁶ -C ²⁰ substituted or unsubstituted alkaryl, C ⁷ -C ²⁰ substituted or unsubstituted aralkyl C ⁷ -C ²⁰ substituted or unsubstituted, or substituted or unsubstituted C ¹⁰ -C ²⁰ polycyclic aromatic groups. 5. Catalyst component according to any of claims 1-4, wherein in the catalyst component, the content of magnesium measured as elemental magnesium is 10-25% by weight; the titanium content measured as elemental titanium is 1-7% by weight; the content of compound A is 1-20% by weight; and the content of compound B is 1-20% by weight. 6. Catalyst component according to any of claims 1-5, wherein the catalyst component is prepared by a method comprising the following steps: 1) dissolving a magnesium compound in a system comprising compound A, and adding a precipitating agent to precipitate solids; and 2) treating the solids precipitated in step 1) with a titanium compound, and adding compound B in and / or before a process of treating the solids with the titanium compound. 7. The catalyst component of claim 6, wherein the magnesium compound is selected from the group consisting of magnesium dihalide, alkoxymagnesium, magnesium alkyl, a magnesium dihalide hydrate or alcohol adduct, or a derivative formed by replacing a halogen atom of the magnesium dihalide with alkoxy or haloalkoxy; and preferably, the magnesium compound is selected from a group consisting of magnesium dihalide or magnesium dihalide alcohol adduct; the titanium compound has a formula of TiX ^m (OR ') ^4-m , in which R' is hydrocarbyl C ⁱ -C ²⁰ , X is halogen, and 1 <m <4, and in which the titanium compound is preferably selected from a group consisting of titanium tetrachloride, titanium tetrabromide, titanium tetraiodide, titanium tetrabutoxylate, titanium tetraethoxylate, titanium monochlorotriethoxylate, titanium dichlorodiethoxylate, or titanium trichloromonoethoxylate; and is more preferably titanium tetrachloride; and the precipitating agent is a metal halide, preferably titanium halide, and more preferably titanium tetrachloride. 8. Catalyst for olefin polymerization, comprising a reaction product of the following components: to. the catalyst component according to any of claims 1-7; b. an alkylaluminum compound, which is preferably an alkylaluminum compound represented by the formula AlR " ⁿ X ^3-n , wherein R" is hydrogen or C ¹ -C ²⁰ hydrocarbyl, X is halogen, and 0 <n <3; and c. optionally, an external electron donor component, which is preferably an organosilicon compound represented by the formula (R ⁵ ) ^k Si (OR ⁶ ) ^4-k , in which 0 <k <3; ^R5 is selected from a group consisting of halogen, hydrogen, C ¹ -C ²⁰ unsubstituted or haloalkyl C ¹ -C ^20, cycloalkyl C ³ -C ²⁰ substituted or unsubstituted aryl or C ⁶ -C amino ²⁰ substituted or unsubstituted; and R ⁶ is alkyl C ¹ -C ²⁰ unsubstituted or haloalkyl C ¹ -C ^20, cycloalkyl C ³ -C ²⁰ substituted or unsubstituted aryl or C ⁶ -C ²⁰ amino substituted or unsubstituted. Catalyst according to claim 8, wherein the molar ratio of the total amount of component a and component b measured as titanium to aluminum is in a range of 1: (5-1000), preferably 1: (25-100 ); and the molar ratio of the total amount of component c and component a measured as the external electron donor to titanium is in a range of (0-500): 1, preferably (25-100): 1. 10. Prepolymerization catalyst for the polymerization of olefins comprising a prepolymer obtained by prepolymerization of the catalyst component according to any of claims 1-7 and / or the catalyst according to one of claims 8 or 9 with an olefin, and the multiple of the prepolymerization in a range of 0.1-1000 g of olefin prepolymer / g of catalyst component. 11. A method for the polymerization of olefins, which comprises performing the polymerization of olefins in the presence of at least one of the catalyst component according to any of claims 1-7, the catalyst according to claim 8 or 9, and the prepolymerization catalyst according to claim 10; wherein preferably the olefin is represented by the formula CH ² = CHR ''', wherein R''' is hydrogen, substituted or unsubstituted C ¹ -C ¹² alkyl or substituted or unsubstituted C ⁶ -C ¹² aryl , and more preferably the olefin is ethylene or propylene.