Catalyst support and related processes

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United States of America Patent

PATENT NO 9873750
SERIAL NO

15105788

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Abstract

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The present invention describes a catalyst support, which is used as an inorganic carrier for a Ziegler-Nata catalyst (ZN), using a modified spray cooling method. Such a catalyst support is prepared from alcoholic solutions of (a) an inorganic compound, in which the inorganic compound is a magnesium compound and (b) an inorganic compound and one or more additives. The solutions are prepared at a temperature below 100° C., carried through a nozzle placed inside a reactor, and sprayed into droplets forming a solid precipitate, which is generally spherical, when in contact with an inert hydrocarbon solvent at low temperature. The obtained catalyst support is reacted with a titanium compound, preferably titanium tetrachloride, in order to produce an active catalyst for olefin polymerization.

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Patent Owner(s)

Patent OwnerAddress
BRASKEM S ARUA ETENO 1561 COMPLEXO PETROQUÍMICO DE CAMAÇARI CAMAÇARI 42810-000

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Barbosa, Cesar Augusto Sales Sao Paulo, BR 4 12
Cardoso, Renata da Silva Sao Paulo, BR 2 0
Fernandes, Jonas Alves Sao Paulo, BR 18 13
Washburger, Marcia Regina Sao Paulo, BR 2 0

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