Claims
- 1. A method for the preparation of a catalyst containing titanium trichloride or vanadium trichloride and useful in the polymerization and copolymerization of ethylene with higher alphaolefines, which comprises vaporizing another metal selected from the group consisting of Al, Mg, Cr, Mn, Fe, V and Ti under vacuum and reacting the vapors thus obtained with TiCl.sub.4 or VCl.sub.4 at a low temperature.
- 2. A method for the preparation of a catalyst as claimed in claim 1, wherein the vaporization of said other metal is carried out under a vacuum in the range between 10.sup.-1 and 10.sup.-6 Torr.
- 3. A method for the preparation of a catalyst as claimed in claim 1, wherein the reaction between the metallic vapors and TiCl.sub.4 or VCl.sub.4 takes place at a temperature in the range between -80.degree. C. and +20.degree. C.
- 4. A method for the preparation of a catalyst as claimed in claim 1, wherein the reaction takes place at a temperature in the range between -60.degree. C. and -20.degree. C.
- 5. A method for the preparation of a catalyst as claimed in claim 1, wherein the reaction between the metallic vapors and TiCl.sub.4 or VCl.sub.4 takes place in the presence of an inert diluent selected from the group consisting of aliphatic, saturated, unsaturated and halogenated hydrocarbons.
Priority Claims (2)
Number |
Date |
Country |
Kind |
19748 A/76 |
Jan 1976 |
ITX |
|
25257 A/76 |
Jul 1976 |
ITX |
|
Parent Case Info
This is a continuation of application Ser. No. 763,077 filed Jan. 27, 1977, now abandoned.
US Referenced Citations (4)
Non-Patent Literature Citations (1)
Entry |
Timms, "Synthetic Reactions of Metal Atoms at Temperatures of 10.degree. to 273.degree. K.", Angewandte Chemie, vol. 14, No. 5, pp. 273-277, May, 1975. |
Continuations (1)
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Number |
Date |
Country |
Parent |
763077 |
Jan 1977 |
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