Silver electrolytic refining is currently the most economical and functional process able to ensure 999.0% silver production. Work stages contain 3 steps :


1. Ag containing anode material melting

2. Electrolytic refining

3. Pure silver fusion obtained according to amount requested by customer ( grit, ingots,   galvanic use anodes etc.)


Operation description :

Anodes are inserted within special electrolysis cells designed for recovery of both silver and precious metals contained in the initial material. Silver crystals resulting from the process gather on basin frustum and are subsequently downloaded through the bottom valve. Crystals are washed on a Buchner filter, dried and fused according to customer needs ( grit, ingots, galvanic use anodes etc.)


Usually during the process of electrolysis, complete anode dissolution is not obtained. The residue is melted once again to produce new anodes. The plant provided by us allows total anode dissolution avoiding the second fusion and ensuring a 10% increase in productivity.


Plant installation and start-up is performed by our specialized technicians.


APX ensures technical and chemical staff training so correct process management is possible.

APX features the following systems :


ASRP 100 refining plant is able to refine up to 100 kg of silver every 24 hours and is equipped with :


-Varnished steel support structure

-n. 3, 100 lt, PPS electrolysis tank, complete with a base truncated pyramidal cone and discharge valve. The electrolysis tank is complete with anodic and cathodic copper barrier, 3 Aisi 316 Stainless Steel cathodes.

-n. 03 PPS, 100 I recirculation tank.

-n. 01 titanium anode trays

-n. 03 PPS, Meraklon electrolysis cells

-n. 03 100A, 10V current rectifier

-n. 03 cart equipped with Buchner funnel with Mk filter and ½” membrane pump


Technical characteristics

-Power supply : depending on each country’s circumstances

-Power : 5kW

-Overall dimensions (in line) 1500 x 800 h 2400 mm

-Weight : 700 kg




The plant is CE-MARKED in compliance with Machinery Directive 2006/42/CE

and Directives 2006/95/CE (low voltage) and 2004/108/CE

(electromagnetic compatibility)