Intermetallic compounds of polymeric transition metal oxide alkoxides and catalytic use thereof
AssigneeNational Distillers and Chemical Corporation
InventorAnthony N. Speca
Life of this patent
Estimating the term…
Abstract
An intermetallic compound comprising the reaction product of a transition metal and a reducing metal of a higher oxidation potential than the transition metal obtained by the reaction of a polymeric transition metal oxide alkoxide and the reducing metal in the presence of dicarbonyl compound; and catalyst components and systems for the polymerization of alpha olefins.
Claims23
An intermetallic compound comprising the reaction product of a transition metal and a reducing metal of a higher oxidation potential than the transition metal, obtained by the reaction of a polymeric transition metal oxide alkoxide and the reducing metal at an elevated temperature in the presence of a dicarbonyl compound of the formula ##STR4## wherein R is alkyl containing up to 10 carbon atoms;
- R.sub.1 is alkyl continuing up to 10 carbon atoms or (CH.sub.2).sub.m CO.sub.2 --(lower) alkyl wherein m=0, 1 or 2;
- R.sub.2 and R.sub.3 are each hydrogen or lower alkyl;
- and R and R.sub.1 taken together with the carbons to which they are attached form a ring of from 5 to about 8 ring carbon atoms.
An intermetallic compound comprising metal values composed predominantly of titanium and magnesium values obtained by the reaction of a titanium alkoxide and magnesium metal in the presence of a dicarbonyl compound of the formula:
- ##STR5## wherein R is alkyl containing up to 10 carbon atoms;
- R.sub.1 is alkyl containing up to 10 carbon atoms or --(CH.sub.2).sub.m carbo(lower alkoxy) wherein m=1, or 2;
- and R.sub.2 and R.sub.3 are each hydrogen or lower alkyl, the molar ratio of titanium to dicarbonyl compound being from about 1:0.1 to about 1:1, said reaction being conducted in an enclosed reaction zone at elevated temperature under autogenous pressure for a period of time to consume the magnesium metal.
An intermetallic compound comprising metal values composed predominantly of titanium and magnesium values obtained by the reaction of a titanium alkoxide and magnesium metal in the presence of a dicarbonyl compound of the formula:
- ##STR6## wherein R and R.sub.1 are each alkyl containing up to 10 carbon atoms, the molar ratio of titanium to said dicarbonyl compound being from about 1:0.1 to about 1:1, said reaction being conducted in an enclosed reactor at elevated temperature under autogenous pressure for a period of time to consume the magnesium metal.
A process for the preparation of an intermetallic compound which comprises reacting a polymeric transition metal oxide alkoxide with a reducing metal of higher oxidation potential than the transition metal in the presence of a dicarbonyl compound of the formula:
- ##STR7## wherein R is alkyl containing up to 10 carbon atoms;
- R.sub.1 is alkyl continuing up to 10 carbon atoms or (CH.sub.2).sub.m CO.sub.2 (lower) alkyl wherein m=0, 1 or 2;
- R.sub.2 and R.sub.3 are each hydrogen or lower alkyl;
- and R and R.sub.1 taken together with the carbons to which they are attached form a ring of from 5 to about 8 ring carbon atoms.
Dependencies are inferred from the claim text.