Storage-stable solution of a mixture of carbonated magnesium methoxide, carbonated magnesium ethoxide and their carbonated mixed alkoxide in a combination of methanol and ethanol and uses thereof

摘要

The present invention relates to a storage-stable solution of a mixture of carbonated magnesium methoxide of the formula Mg(CH.sub.3 O). sub.2 (CO.sub.2).sub.n, carbonated magnesium ethoxide of the formula Mg(C. sub.2 H.sub.5 O).sub.2 (CO).sub.2).sub.n and a carbonated mixed alkoxide of the formula Mg(CH.sub.3 O).sub.x (C.sub.2 H.sub.5 O).sub.y (CO.sub.2). sub.n, in which 0 x, y 2 and x+y=2, in a combination of methanol and ethanol, and processes for the preparation thereof, the magnesium content of the solution being from 0.1 to 11% by weight, based on the total weight of the solution, and the CO.sub.2 content n being from 1.0 to 2.2. The present solutions are used, inter alia, for the preservation of paper and for the preparation of a catalyst for the polymerization of olefins.