Our Elution and Acid Wash columns are optimally designed for plug flow of eluate or fresh water for eluting gold cyanide complexes from activated carbon recovered from CIP/CIL gold adsorption circuits.

Designed and constructed to a range of available pressure vessel codes, including ASME VIII, EN13445, B51-14 or AS1210, the vessels can be manufactured from carbon steel boiler plate for Pressure Zadra applications, or higher grade SS316 or SAF 2205 duplex stainless steels for specialist applications where dual elution/acid washing capabilities are required. Available with semi-ellipsoidal or torospherical dished ends,or alternatively cone base for reduced column base transfer wear.

The vessels are equipped with flanged integral Johnson screens on the inlets and outlets, allowing for easy removal of the filters to remove any entrapped sand, organics or plastics.

Vessel supports can be adjusted to suit clients existing structures or can be provided in a self contained support structure which can be transported in standard sea containers to their final destinations. Vessel aspect ratios are design specifically for the specific elution process.

The elution vessels are externally primed with in encapsulated inorganic zinc silicate before being wrapped in 50mm thermally insulating Superwool fibre and clad with stainless steel lagging.

The Acid Wash vessel are provided either in SAF2205 form or rubber lined carbon steel. Carbon steel acid vessels are externally painted with two pack hard epoxy coated for enhanced weathering resistance and are rubber lined with high quality 6mm Bromo Butyl rubber.

Also available in regeneration carbon transfer/quench vessel designs.