An olefin polymerization catalyst containing magnesium, titanium, an epoxy compound, and an internal electron donor such as a 1,2-phenylenedibenzoate-based compound

Claims

1. A method for producing a solid component of an olefin polymerization catalyst, and this method includes: preparation of a magnesium solution by reacting a magnesium halide compound with an epoxy compound in a hydrocarbon solvent; adding at least one non-phthalate internal donor to the magnesium solution to form a first mixture; treating the first mixture with a first titanium compound to form a solid precipitate; and separating the solid precipitate from the first mixture to obtain a solid catalyst component.

2. The method according to claim 1, wherein the processing further comprises treating the solid precipitate with a second titanium compound to obtain a solid catalyst component.

3. The method according to claim 1 or 2, wherein the processing further comprises treating the solid precipitate with a second titanium compound and a second internal electron donor to obtain a solid catalyst component.

4. The method according to any one of paragraphs 1-3, wherein the magnesium solution additionally contains an organosilicon compound.

5. The method according to claim 4, wherein the organosilicon compound is represented as R n Si(OR') 4-n , where R is alkyl or aryl; R' is alkyl, aryl.

6. The method according to claim 4, wherein the organosilicon compound is a polysiloxane.

7. The method according to any one of claims 1 to 6, wherein the magnesium solution additionally contains a halogenating agent containing at least one halogen atom capable of transferring to magnesium.

8. The method according to claim 7, wherein the halogenating agent is aryloyl chloride, alkanoyl chloride, alkyl chloride, HCl, TiCl4, R n TiCl 4-n , CCl4, R n SiCl 4-n and R n AlCl 3-n, where R is an alkyl, cycloalkyl, aryl or alkoxy group, n is an integer satisfying the formula 0 <n<4, и мольное отношение галогенирующего агента к соединению магния составляет, по меньшей мере, 1:

1.

9. The method according to any one of claims 1-8, wherein the magnesium solution additionally contains an organic phosphorus compound.

10. The method according to any one of claims 1 to 9, wherein the magnesium solution further comprises an organosilicon compound, a polyacrylate, an organic phosphorus compound, or a mixture of any two or more of them.

11. The method according to any one of paragraphs 2-10, wherein the first and second (if present) titanium compound are represented by the formula: Ti(OR) g X 4-g , where each R independently represents C1-C 20 -alkyl, C3-C 20 -cycloalkyl or C6-C 30 -aryl; X is Br, Cl, or I; and g has a value of 0, 1, 2, 3, or 4.

12. The method according to any one of claims 1 to 11, wherein the solid catalyst component has an average particle size of approximately 3 to 100 microns (50 vol.%).

13. The method according to any one of paragraphs 1-12, wherein the internal electron donor is represented as: where each of R 15 -R 20 are independently H, a heteroatom, alkyl, cycloalkyl, cycloalkylalkyl, aryl, aralkyl, heterocyclyl, heterocyclylalkyl, heteroaryl or heteroarylalkyl; and q represents an integer between 0 and 12.

14. The method according to any one of paragraphs 1-13, wherein the internal electron donor is represented by one of the following formulas: where R 40 -R 43 each independently selected from H, a heteroatom, alkyl, cycloalkyl, cycloalkylalkyl, aryl, aralkyl, alkylaryl, or an -OR 44 ; where R 44 is C1-C 20 -alkyl, C6-C20 -aryl, C6-C 20 aralkyl or C6-C 20 -alkylaryl; R 36 and R 37 each independently selected from F, Cl, Br, I, alkyl, cycloalkyl, cycloalkylalkyl, aryl, aralkyl, alkylaryl, -OR 45 or -NR2 46 ; R 45 is C1-C 20 -alkyl, C6-C 20 -aryl or alkylaryl; X1 and X2 each represent O, S or NR 47 ; And R 47 represents H, C1-C 20 -alkyl, C6-C 20 -aryl, C6-C 20 aralkyl; or where R 38 , R 39 , R 40 , R 41 , R 42 and R 43 each independently represents H, a heteroatom, alkyl, cycloalkyl, cycloalkyl-alkyl, aryl, alkylaryl, heterocyclyl, heterocyclylalkyl, heteroaryl, or heteroarylalkyl; or where each of R50 -R 57 independently represent H, a heteroatom, alkyl, cycloalkyl, cycloalkylalkyl, aryl, aralkyl, heterocyclyl, heterocyclylalkyl, heterocyclic alkyl, or aryl, heteroaryl, or heteroarylalkyl.

15. A solid component of an olefin polymerization catalyst, wherein the solid component of the catalyst comprises a halide-containing magnesium, a titanium compound and an internal electron donor, wherein a solid catalyst component is obtained from a homogeneous reaction mixture containing a magnesium halide, an epoxy compound and an internal electron donor, wherein a titanium halide is added to the mixture to obtain a solid catalyst component; Magnesium halide is represented by the formula: Mg(OR') x X' 2-х , where each R' independently represents C1-C 20 -alkyl, optionally substituted with a halogen atom, or C3-C 20 -cycloalkyl-alkyl, optionally substituted by a halogen atom; X' represents Br, Cl or I; x has values 0, 1 or 2; the internal electron donor is a non-phthalate internal electron donor; the internal electron donor is present in an amount of approximately 3 to 25 wt.% based on the total solids weight of the solid catalyst component; The titanium compound is represented by the formula: Ti(OR) g X 4-g , each R independently represents C1-C 20 -alkyl, C3-C 20 -cycloalkyl or C6-C 30 -aryl; X is Br, Cl, or I; g is 0, 1, 2, 3, or 4; titanium is present in an amount of from 1 to 6 wt.% based on the total mass of solids of the solid component of the catalyst; and The solid catalyst component has a particle size of approximately 3 to 100 microns (50% by volume).

16. A catalytic system for use in olefin polymerization, wherein the catalytic system comprises a solid catalyst component obtained by the method according to any one of claims 1 to 14, an organoaluminum compound and, optionally, an organosilicon compound and / or an organic compound of an external donor containing an oxygen or nitrogen atom.

17. The catalytic system according to claim 16, wherein the organoaluminum compound is an alkylaluminum compound.

18. The catalytic system of claim 17, wherein the alkyl-aluminum compound is a trialkylaluminum compound.

19. The catalytic system of claim 18, wherein the trialkyl aluminum compound comprises triethyl aluminum, triisobutyl aluminum, or tri-n-octylaluminum.

20. A method for polymerizing or copolymerizing an olefin monomer, comprising contacting the olefin monomer with a catalytic system according to any one of paragraphs 16-19 to obtain a polyolefin polymer.