Process for preparing microcrystalline-to-amorphous metal and/or alloy powders and metals and/or alloys dissolved without protective colloid in organic solvents
AssigneeStudiengesellschaft Kohle mbH
InventorsHelmut Bonnemann, Werner Brijoux, Thomas Joussen
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Abstract
The invention relates to a process for the preparation of finely divided microcrystalline-to-amorphous metal and/or alloy powders and of metals and/or alloys in the form of colloidal solutions in organic solvents, which is process is characterized in that in inert organic solvents metal salts individually or in admixture are reacted with alkaline metal or alkaline earth metal hydrides which are maintained in solution by means of organoboron or organogallium complexing agents, or with tetraalkylammonium triorgano-borohydrate, respectively.
Claims11
A process for the preparation of a highly dispersed microcrystalline-to-amorphous metal and/or alloy in the form of a powder or colloid, which comprises forming a solution of a metal hydride of the 1st or 2nd main groups of the Periodic Table of the Elements (PSE) by means of a complexing agent, or with NR".sub.4 (BR.sub.3 H), NR".sub.4 [BR.sub.n (OR').sub.3-n H), (R=C.sub.1 -C.sub.6 -alkyl, Ar-C.sub.1 -C.sub.6 -alkyl;
- R'=C.sub.1 -C.sub.6 -alkyl, aryl, Ar-C.sub.1 -C.sub.6 -alkyl;
- R"=C.sub.1 -C.sub.6 -alkyl, aryl, Ar-C.sub.1 -C.sub.6 -alkyl, tri-C.sub.1 -C.sub.6 -alkyl;
- n=0, 1, 2), and reacting said solution with a metal salt in an inert organic solvent.
Dependencies are inferred from the claim text.