Catalysts comprising magnesium and a transition metal

Patent · Tue Oct 09 04:00:00 EDT 1984

OSTI ID:6128185

Bujadoux, K

A catalyst comprising the product obtained by bringing into contact a compound of magnesium comprising at least one species selected from the group consisting of magnesium monohalides (MgX), halo-magnesium hydrides (HMgX) and magnesium hydride (MgH/sub 2/), X being a halogen and the said species MgX or HMgX being obtained by thermal decomposition of a powdery organo-magnesium halide R/sub 1/MgX wherein R/sub 1/ is an organic radical; and at least one halide of a transistion metal selected from the group consisting of titanium and vanadium, the valency of said metal in said halide being lower than or equal to 3, the quantities being such that the atomic ratio of magnesium to said transistion metal is between 1 and 25, and a catalyst system including the catalyst that is suitable for use in the polymerization of olefins and particularly ethylene.

• Assignee: Societe Chimique des Charbonnages-CdF CHIMIE (France)
• Patent Number(s): US 4476288
• OSTI ID: 6128185
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020500* -- Petroleum-- Products & By-Products
ALKALINE EARTH METAL COMPOUNDS
ALKENES
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL COMPOSITION
CHEMICAL PREPARATION
CHEMICAL REACTIONS
ELEMENTS
HALIDES
HALOGEN COMPOUNDS
HALOGENS
HYDRIDES
HYDROCARBONS
HYDROGEN COMPOUNDS
MAGNESIUM COMPOUNDS
MAGNESIUM HYDRIDES
METALS
NONMETALS
ORGANIC COMPOUNDS
POLYMERIZATION
SYNTHESIS
TITANIUM
TRANSITION ELEMENTS
VALENCE
VANADIUM