FREMGANGSM}TE VED UTSEMENTERING AV KADMIUM FRA VANDIGE OPPL¦SNINGER VED HJELP AV SINKPULVER

摘要

Materials dissolved in water are separated from each other by means of a cementation agent. The materials treated are those having a greater hydrogen overpotential than the potential difference between the cementation agent and hydrogen gas. A water solution of material to be cemented is fed upwards to a reaction zone through a bed containing the cementation agent, and agglomerates produced sink from the bed to be crushed in a zone below the bed.