Portable electrochemical leaching reactor FLR. (Know-how iodine-iodide leaching technology Flexicone for up to 100% extraction of gold and precious metals from refractory ores)

28-liter reactor is recommended for laboratories, hydrometallurgical studies, small and large mining companies. Also applicable for various electrochemical leaching technologies: iodine-iodide, thiourea, thiosulfate, hypochlorite, cyanide, gin-chan, information on the flexicone net website.

 

Indispensable for finishing concentrates  instead of the aqua regia process.

 

Supplied complete with:

Reactor (parts: 14L solution receiver, 14L main drum, cover, cathode, anode)

Rectifier power supply (adjustable voltage 7-15V, adjustable current 0-20A

Peristaltic pump 220/12 Volt 7 amps with hoses

Processing reagent (1 kg)

Leaching reactor complete with all necessary units for the processes: oxidation of sulfides, vacuum filtration, electrochemical leaching, electrodeposition, solution regeneration. The final result of the process will be precipitated pure precious metals. It is used for leaching gold, silver from ore, concentrate, tailings. We have also developed a technology for extracting platinum group metals using stable anodes with a constant magnetic field.

High degree of 85-100% extraction from refractory ores (sulfides and etc.) without preliminary oxidation. Low processing cost ($10/t of ore).

Power consumption 1-2 kWh/t of ore

The process is economically viable for refractory ores containing 1 g/t of gold 

For laboratory analysis of gold containing 0.1 g/t

The process of complete leaching takes from 2 hours even in the presence of large gold particles (up to 1 mm). This is achieved by the design of the electrochemical reactor and the arrangement of the electrodes.

 

The reactor is designed to intensify chemical processes and more completely extract precious metals from refractory ores and concentrates, as well as sulfide minerals at normal atmospheric pressure and temperature.

 

Advantages:

The highest percentage of gold extraction from ores compared to other methods.

Non-hazardous, non-flammable chemical reagent - classification (000)

Regeneration of the reagent and the full cyclicity of the process make the process environmentally friendly.

Leaching of precious metals occurs in less chemically aggressive conditions. Concentration and consumption of chemicals are reduced due to the electrochemical process.

Possibility of stepwise leaching of metals.

Universality of technology and applicability for various types of ores and concentrates.

Ease of monitoring and control of the process by regulating the voltage / current on the electrodes.

High wear resistance, quick change and low cost of consumables.

 

 

 

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​​Specification :

Reactor:                    FLR14.      FLR100.   TR250       FDR800

Volume of reactor, l  28                  180.         250            800

Volume of loading,i.  14                  100         240            500

Size LxWxH, cm.    40x50x35  65x65x110  65x65x190 165x95x140

Weight, kg                7                    60             40              270

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Power supply rectifier

input voltage ,VAC    220              220.             220           220

output Voltage,VDC  7-15 .           0-15             0-15 .          

output Current, A      0-20.            0-40             0-40       

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Peristaltic pump:

Voltage, VDC            7-15            24                 24

Current , Amp           6                  15                15

Power ,Watts.           72                360               360

Capacity, l/min          6                   10                 30

Pressure,mPa          0.2                  0.3               0.3

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Drive, kW                  0.25               0.25              2.0

Voltage ,VAC             220               220              220

 

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Flexicone drum reactor FDR800 for intensive mineral leaching.

Made of stainless steel. The reactor allows to perform a full cycle of all leaching processes: mixing, filtration of the solution, washing the cake, quick unloading of the cake by manually tilting the drum down.

The filtration system developed by us allows for complete filtration of a solution of finely ground material (up to 10 microns) to a minimum residual moisture content of the cake of 10%, and a drum-type reactor allows rapid mixing of a dense cake with water for washing.

 

 

Benefits:

 

 

Loading up to 70% - use the maximum usable volume, choosing the angle of inclination convenient for you.

Convenient unloading - unloading with a rotating drum tilted downward.

Stainless steel AISI 304 - the material of which the drum and blades are made.

Operator safety - all moving parts of the drive are closed by a box.

Certified in accordance with EU and RF regulations.

 

Additionally, can be ordered:

Frequency speed controller

Timer (switches off the mixer automatically after a set time)

Stainless steel lid

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Case studies with FLR14:

1. Hardrock mining processing

Quartz ore with a sulfide content of up to 30% gold 5 g / t and silver 2 g / t crushed and milled to the size 0.1mm .

Milled ore processed through Flexicone Centrifugal concentrator to recover free gold and silver. Higher then 5% gold/silver content concentrate can be direct melted or purified with aqua regia.

Tailing from concentrate are being processed with Leaching Reactor FLR14

An aqueous 8% solution and crushed quartz ore with a sulfide content is poured into the apparatus . The ratio of T: W is 1: 1-1.5. The resulting pulp is processed for 180 minutes.

Gold and Silver leached from ore and in the same time are being precipitated. Then the pulp is filtered. The cake is washed with water and the resulting saline solution is again sent to leach the following material.

 

The degree of extraction of gold and silver is up to 99.8%

 

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