Process for the preparation of spherical particles of magnesium

Details Process for the preparation of spherical particles of magnesium Process for the preparation of spherical particles of magnesium

1992-09-01

1993-07-13

Cintins, Marianne M.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

C07C 3130

Patent

active

052275426

ABSTRACT:
The invention involves spherical particles of magnesium alkoxide and a process for their preparation. Specifically, spherical magnesium alkoxide is produced by spray drying of an alcoholic solution of the corresponding carboxylated magnesium alkoxide and subsequent drying and decarboxylation, characterized in that the solution is sprayed via a two-material nozzle with inner atomization, which is operated in the part-load range at 10 to 30% of its capacity, into an inert accompanying gas which is under a pressure of 1.0 to 1.2 bar, has been preheated to 100.degree.-140.degree. C. and is fed cocurrently, after which the resulting finely divided carboxylated magnesium alkoxide is dried and is decarboxylated. The magnesium alkoxide is used for the preparation of a catalyst for the polymerization of .alpha.-olefins.

REFERENCES:
patent: 4663299 (1987-05-01), Chadurch et al.
Weissberger, Separation and Purification, Interscience, 1956, pp. 821-822.

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