Claims
- 1. A carrier-supported titanium catalyst component containing magnesium, aluminum, halogen and titanium as essential ingredients, said titanium catalyst component being prepared by a sequential reaction of
- (I) a magnesium containing support obtained by previously bringing a support (i) into contact with a magnesium compound having at least one of hydrocarbyl-magnesium bond in the liquid state (iic) and then with a halogen containing compound selected from a group consisting of halogenated hydrocarbon, hydrogen halide, halogen, halogen containing alcohol and a compound having halogen atoms directly attached to silicon, tin, phosphorus, titanium or vanadium element (iib), followed by a reaction with an alcohol compound (iv), and
- (IIa) an organic aluminum compound, and subsequently reacting thus obtained product with
- (III) a titanium compound in the liquid state.
- 2. The catalyst component as claimed in claim 1 wherein the titanium compound in the liquid state (III) is a tetravalent titanium compound.
- 3. The catalyst component as claimed in claim 1 wherein an average valence of titanium atom in the titanium catalyst component is less than 4.
- 4. The catalyst component as claimed in claim 1 wherein an average particle diameter of the titanium catalyst component is 10-100 .mu.m.
- 5. The catalyst component as claimed in claim 1 wherein the support is an inorganic oxide containing a hydroxyl group.
- 6. The catalyst component as claimed in claim 1 wherein in the carrier-supported titanium catalyst component, Ti/Mg (atomic ratio) is greater than 0.01 but not greater than 1, Al/Mg (atomic ratio) is greater than 1 but not greater than 3, halogen/Mg (atomic ratio) is greater than 3 but not greater than 6, and RO group/Mg (R is a hydrocarbon group) in terms of weight ratio is greater than 1 but not greater than 15.
- 7. The catalyst component as claimed in claim 1 wherein the halogen containing compound selected from a group consisting of halogenated hydrocarbon, hydrogen halide, halogen, halogen containing alcohol and a compound having halogen atoms directly attached to silicon, tin, phosphorus, titanium or vanadium element (iib) is a silicon compound having directly attached halogen or a titanium compound having directly attached halogen.
- 8. A process for preparing a carrier-supported titanium catalyst component containing magnesium, aluminum, halogen and titanium as essential ingredients, which process comprises preparing a magnesium containing support (I) by previously bringing a support (i) into contact with a magnesium compound having at least one of hydrocarbyl-magnesium bond in the liquid state (iic), followed by contact with a halogen containing compound selected from a group consisting of halogenated hydrocarbon, hydrogen halide, halogen, halogen containing alcohol and a compound having halogen atoms directly attached to silicon, tin, phosphorus, titanium or vanadium element (iib) and then with an alcohol compound (iv), and then bringing the magnesium containing support (I) obtained into contact with an organic aluminum compound (IIa), and bringing thus obtained product into contact with a titanium compound in the liquid state (III).
- 9. A catalyst for use in preparing ethylene polymer, said catalyst comprising a carrier-supported titanium catalyst component (A) containing magnesium, aluminum, halogen and titanium as essential ingredients, said catalyst component being obtained by a sequential reaction of
- (I) a magnesium containing support obtained by previously bringing a support (i) into contact with a magnesium compound having at least one of hydrocarbyl-magnesium bond in the liquid state (iic), followed by a reaction with a halogen containing compound selected from a group consisting of halogenated hydrocarbon, hydrogen halide, halogen, halogen containing alcohol and a compound having halogen atoms directly attached to silicon, tin, phosphorus, titanium or vanadium element (iib) and then with an alcohol compound (iv), and
- (IIa) an organic aluminum compound, and subsequently reacting thus obtained product with
- (III) a titanium compound in the liquid state, and an organometallic compound catalyst component (B) of a metal of the Group I to IIIA of the periodic table.
- 10. A catalyst for use in preparing ethylene polymer, said catalyst comprising a carrier-supported titanium catalyst component (A) containing magnesium, aluminum, halogen and titanium as essential ingredients, said catalyst component being obtained by a reaction of
- (I) a magnesium containing support obtained by previously bringing a support (i) into contact with a magnesium compound having at least one of hydrocarbyl-magnesium bond in the liquid state (iic), followed by a reaction with a halogen containing compound selected from a group consisting of halogenated hydrocarbons, hydrogen halide, halogen, halogen containing alcohol and a compound having halogen atoms directly attached to silicon, tin, phosphorus, titanium or vanadium element (iib) and then with an alcohol compound (iv), and
- (IIa) an organic aluminum compound, and subsequently reacting thus obtained product with
- (III) a titanium compound in the liquid state, and an organometallic compound catalyst component (B) of a metal of the Group I to IIIA of the periodic table, said catalyst containing preliminarily polymerized polyolefins of at least 5 g, based on 1 mg atom of titanium present in said carrier-supported titanium catalyst.
Priority Claims (7)
Number |
Date |
Country |
Kind |
63-116626 |
May 1988 |
JPX |
|
63-116627 |
May 1988 |
JPX |
|
63-122655 |
May 1988 |
JPX |
|
63-122656 |
May 1988 |
JPX |
|
63-181406 |
Jul 1988 |
JPX |
|
63-181407 |
Jul 1988 |
JPX |
|
PCT/JP89/00486 |
May 1989 |
WOX |
|
Parent Case Info
This is a division of application Ser. No. 07/415,335, filed Sep. 18, 1989 and now abandoned.
US Referenced Citations (5)
Foreign Referenced Citations (2)
Number |
Date |
Country |
1261545 |
Sep 1989 |
CAX |
60-195108 |
Mar 1985 |
JPX |
Divisions (1)
|
Number |
Date |
Country |
Parent |
415335 |
Sep 1989 |
|