Treatment of catalyst particles

Details Treatment of catalyst particles Treatment of catalyst particles

1987-01-12

1987-12-22

Sever, Frank

Liquid purification or separation

Gravitational separator

Heavier constituent trap, chamber, or recess

209158, 209172, 2105321, 526159, B01D 2100

Patent

active

047145536

ABSTRACT:
The invention relates to apparatus for the elutriation of particles of a Ziegler-Natta type alpha-olefin polymerization catalyst, based on transition metal compound(s) and preferably also comprising magnesium compounds, by means of an elutriation liquid which is a non-polar liquid, for example a hydrocarbon chemically inert in relation to the catalyst. The apparatus comprises a tank (M2) for the preparation of the catalyst suspension and the elutriation column or columns (F1), (F2).

REFERENCES:
patent: 3627129 (1971-12-01), Hartmann
patent: 3931134 (1976-01-01), Hartmann et al.
patent: 3990996 (1976-11-01), Gal et al.
patent: 4040958 (1977-08-01), Rammler
patent: 4287088 (1981-09-01), Sikar
patent: 4354959 (1982-10-01), Epstein et al.

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