C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
53/260
C22B 26/22 (2006.01)
Patent
CA 1240156
Process for Preparing Finely Divided Highly Reactive Magnesium and Use Thereof Abstract of the Disclosure The present invention relates to a pro- cess for preparing a finely divided, highly reactive magnesium from magnesium hydride, magnesium anthracene and/or its derivatives or magnesium butadiene and/or its alkyl or phenyl derivatives, which process is characterized in that the respective magne- sium-containing compound is thermally decom- posed at a pressure from 10-6 to 1 bar the de- composition being carried out in the presence of a co-reactant of a consecutive reaction, or such co-reactant being added only after com- pletion of the precipitation of the magnesium, or in the absence of such co-reactant, the mag- nesium obtained by said decomposition being isolated as a powder, and to the use of the finely divided, highly reactive magnesium for inserting magnesium into poorly reactive C-X bonds, wherein X denotes hetero- atoms such as halogen, oxygen, sulfur, nitro- gen, phosphorus, and the resulting organomagne- sium compound may be used in a consecutive re- action according to a per se known method, and for the reversible preparation of active magne- sium hydride by reaction with molecular hydro- gen at a pressure of from 1 to 2 bar and at a temperature of from 150°C to 250°C.
543069
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Solar Dynamics Gmbh
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