WIRES INCORPORATING A HELICAL COMPONENT, ASSEMBLIES THEREOF,AND USE OF SAID ASSEMBLIES AS CATALYSER AND/OR TO RECOVER PRECIOUS METALS

摘要

A wire comprising at least one helically wound wire element is disclosed. T he helical winding consists of a platinoid or platinoid alloy wire (20). Also disclosed are assemblies of these wires (20) such as knitted materials, fabrics and felts, and the use of said assemblies as catalysers in the reaction for preparing nitric or cyanhydric acid, and to recover precious metals from these catalysers.