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Puras®

The first fully-automatic gold refining system with integrated nitric and hydrochloric acid recovery

The new Puras® gold refining system from Koras® is able to refine all types of precious metal alloys in a fully automatic process without the release of acidic gases and with the recovery of nitric and hydrochloric acid.

The system consists of glass reactors with a heating mantle with stirrer, gold precipitation container, and special fume scrubbers for NOx and Cl2 gases. These special fume scrubbers can be used to recover nitric acid (up to 50%) from NOx gases and hydrochloric acids (up to 30%) from HCl /Cl2 to enable reuse for the dissolving process. The complete fully automatic process guiding and monitoring is made using a touch display.
 
Advantages:
  • Reduction of the volumes of chemicals used
  • Higher refining efficiency, up to 20% silver content is possible
  • Reduction of required personnel through fully automatic program control
  • No emissions of gases; a standard fume scrubber is not necessary
  • 100% recovery of nitric acid (up to 50%) and hydrochloric acid (up to 30%) from the acidic exhaust fumes
  • Exhaust emission values of NOx; HCL and CL2 are below the allowed limit values for Europe, China, etc.
  • 100% fully automatic program control
  • Process guiding and monitoring can be made using a notebook or mobile phone app
 
  Puras® 6 Puras® 15 Puras® 30 Puras® 60 Puras® 120
Power supply 400 V 400 V 400 V 400 V 400 V
Power 4 kW 6 kW 12kW 18 kW 36 kW
Quantity alloy (6-8 h) 6 kg 15 kg 30 kg 60 kg 120 kg
Dimensions in mm (WxDxH) 3200 x 880 x   2500 5070 x 1010 x 3015 5400 x 1210 x 3015 5850 x 1380 x 3450 6820 x 1380 x 3450
Koras GmbH | Hauptstraße 66 | D-75331 Engelsbrand
Telefon 07082 - 792 83-00 | Fax 07082 - 792 83-28 | Email info@koras-pmr.de
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