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Gold Refining by Aqua Regia Process

aqua regia refining and sedimentation



ALLOY BATCH CHARGE: 8/10 Kg ALLOY MAXIMUM PER CYCLE



WORKING CYCLE TIME IN 24 hours = 3 BATCHES



PURITY CAN BE OBTAINED: FROM 999,5 TO 999,8-9/1000



CONTACT US FOR LARGER QUANTITIES UP TO 300 KG PER DAY



Technical Features:



Section A: Reactor for the chemical etching:


  • nr.1 cylindrical borosilicate glass reactor 50lt volume type dn 400 with discharge valve and
Equipped With:
  • Borosilicate glass top cover dn 300,central dn
  • 50 to hold the stirrer drive.
  • n° 1 stirring group with lapped static ring, drive, steel/ptfe shaft, “u” shaped stirring blade, adjustable mechanical seal set made of Teflon and complete with motor.
  • nr.1 motor for stirring group 0,12 kw complete with speed variator and flexible connection.
  • nr.1 electrical heater for the reactor 50 lt complete with bottom protection cover made of aluminum and protected with fiberglass.
  • nr.1 thermocouple for reading the temperature.
  • nr.1 condenser with showers to wash and recovery the salts of gold chloride evaporated during the reaction.
  • nr1. graduated feed vessel lt.10 complete with connection, charging and discharging valve, vacuum and breather pipe, top cover dn 100.
  • nr.1 graduated feed vessel lt.20 complete with connection, charging and discharging valve, vacuum and breather pipe, top cover dn 100.
  • nr.1 p.p. underlying safety tank.


Section B – Filtration:

  • nr.1 spherical glass borosilicate container vol. 80 liters approx.
  • nr.1 buchner filtering unit made of pp dn 400 complete with glass top cover and n°3 necks.


* the central neck used for charging the gold solution coming from reactor in position a.
* the lateral neck complete with valves for fast connection with vacuum or breathing.
* motorized system to lift the glass cover of the buchner filter.

  • nr.1 security tank made of p,p, underlying.
  • nr.1 centrifugal magnetic pump of pvdf type 80 – 0,25 kw
  • pump delivery : 90 lt/min
  • rapid connections dn 25.
  • Double valve and security filter to regulate the flow of the gold chloride solution just  filtered and cooled that will be delivered to the reactor/precipitator section c.


Section C: Reactor for etching or precipitation:

  • nr.1 cylindrical borosilicate glass reactor 70lt volume type dn 400


This Reactor is Equipped With:

  • Borosilicate glass top cover dn 300/50 to hold the stirrer drive.
  • nr.1 stirring group complete with: lapped static ring, drive, steel/ptfe shaft, turbine shaped stirring blades
  • Adjustable mechanical seal set made of Teflon and complete with motor.
  • nr.1 motor for stirring group:0,12 kw complete with speed variator and flexible connection.
  • n°1 discharging valve dn 50.
  • n°1 electrical heater for the reactor lt. 50 complete with bottom protection cover made of aluminum and protected with fiberglass.
  • nr.1 thermocouple for reading the temperature.
  • nr.1 condenser with showers to wash and recovery the salts of gold chloride evaporated  during the reaction
  • nr.1 graduated feed vessel lt.10 complete with connection, charging and discharging valve, vacuum and breather pipe, top cover dn 100.
  • nr.1 graduated feed vessel lt.20 complete with connection, charging and discharging valve, vacuum and breather pipe, top cover dn 100.
  • nr.1 p.p. underlying safety tank. the plant is complete with a final condenser which collects all eventual gold chloride residuals before conveying the fumes to washing towers.


Unit is Complete With:

  • Teflon connection pipes for vacuum transfer of the solutions.
  • n°1 main switchboard to control all the unit operations.
  • n°1 holding structure made of zinc plated pipes type kk.
  • n°1 connecting glass pipe line complete with  reduction curves etc.
  • Flanges, inserts, gaskets, s/steel nuts.
  • Epoxy paint for holding structure protection once assembled.
  • Overall dimensions: 5450x2900x4100h mm including platform and stairs.


Interested in a quote?

 

Please download our PDF questionnaire, fill out and E-Mail to DGold@goldmachinery.com





Pricing Starting at 140.000,00 Euros

Ex-Factory, Italy



You may also call us at: 1-800-619-GOLD
between the hours of 9am and 5pm EST
OR E-Mail David Gold at DGOLD@GoldMachinery.com

Financing Available - Low Monthly Payments

© Gold International Machinery 2015

[ Mailing Address | Gold International Machinery, Corp | P.O. Box 998 Pawtucket, RI 02862 ]
[ Physical Address: | 136 Newell Avenue | (corner of Thurston & Newell Sts.) | @Exit 26, Route 95 North | Pawtucket, RI USA 02860-0998 ]
[ mail@goldmachinery.com | Toll Free: 1-800-619-GOLD | Phone: 401-724-3200 | Fax: 401-728-5770 ]