FESTSTOFF, ENTHALTEND CHEMISCH GEBUNDENE METALLALKYLGRUPPEN, UND SEINE VERWENDUNG

摘要

In a novel solid based on at least one divalent or polyvalent alkylmetal compound A and a finely divided, porous and mechanically stable support B, which, in the uncharged state, carries, on its surface, functional groups which are able to form a chemical bond between the metal atoms of the alkylmetal compound A and the surface of the support, but which is otherwise chemically inert, the metal atoms originating from the alkylmetal compounds A are chemically bonded to the surface of the support B, alkylmetal groups are still present, and there is no longer any alkylmetal compound A which could be extracted with the aid of an inert organic solvent for alkylmetal compounds A. The novel solid is suitable for the purification of liquid and gaseous substances and for the cleaning of chemical reactors in which air- and/or water-sensitive substances are reacted with one another, from impurities in the ppm range.