Abstract: A carbon black composition of carbon black coated with nickel, iron, cobalt or yttrium, blends of such metal doped carbon black with thermoplastic or rubber as well as applications of the metal coated carbon black are disclosed. The material has ferromagnetic properties and allows applications in materials influenced by magnetic and/or electric, and/or electromagnetic fields. The other application is for use in carbon black reactors as a catalyst or nucleus for new production of nanostructures of carbon black, in particular carbon nanotubes.

Abstract: A flux for hot dip galvanization comprises from 60 to 80 wt % of zinc chloride (ZnCl2); 7 to 20 wt % of ammonium chloride (NH4Cl); 2 to 20 wt % of a fluidity modifying agent comprising at least one alkali or alkaline earth metal; 0.1 to 5 wt % of at least one of the following compounds: NiCl2, CoCl2, MnCl2 and 0.1 to 1.5 wt % of at least one of the following compounds: PbCl2, SnCl2, BiCl3 and SbCl3.

Abstract: A flux for hot dip galvanization comprises from:&Circlesolid;60 to 80 wt. % of zinc chloride (ZnCl2); 7 to 20 wt. % of ammonium chloride (NH4Cl); 2 to 20 wt. % of a fluidity modifying agent comprising at least one alkali or alkaline earth metal; 0.1 to 5 wt. % of a least one of the following compounds: NiCl2, CoCl2, MnCl2; and 0.1 to 1.5 wt. % of at least one of the following compounds: PbCl2, SnCl2, BiCl3, SbCl3.

Abstract: A powerful reducing agent such as hydrazine monohydrate is added to the standard eluent solutions such as NsOH-NaCN with or without alcohol. The kinetics of elution of gold or of silver are thus markedly enhanced.

Abstract: The invention relates to a process for the recovery of micas by flotation starting with slurried ore from which the fines have been optionally removed, comprising a stage of bringing the said slurry into contact with an appropriate cationic collector, followed by an actual flotation stage and recovery of the supernatant formed for subsequent treatment and optional rewashing, characterized in that it is carried out at a pH higher than 6 and in that the stage of bringing the said slurry into contact with the cationic collector is preceded by a stage of bringing the said slurry into contact with an activating agent chosen from soluble metal salts.The invention also relates to the micas obtained by the process.