Desorption electrolysis system

Introduction
Desorption electrolysis system is applied to recover solid gold from carbons in the cyaniding process. It is equipped with liquid-level controlling system, temperature controlling system and automatic controlling system.


Features
High-efficiency: when the grade of loaded carbon reaches 3000g/t, the desorption rate can reach more than 96%, the barren carbon tenor with this equipment comparing with that of normal desorption electrowinning equipment will reduce to its one/ fourth.
Rapid: the temperature of desorption electrowinning can reach as high as 150℃(generally 30-55℃ higher than in other kind system), and the working pressure of system can reach as high as 0.5 Mpa (generally 0.2-0.5 Mpa higher than in other kind system), so the desorption electrowinning is rapid with 12 hours typically(50%-60 % time shorted).
Low consumption: the same temperature for desorption, no need of heat-exchanging, working speed is rapid, power consumption is 1/2-1/4 of normal system.

Application
Desorption electrolysis system is applied to recover solid gold from carbons in the cyaniding process.
Working principle
When the desorption system is added with anions which are more easily absorbed by activated carbons, Au（CN）2ˉ is replaced by anion and the gold desorption is achieved. After the carbons loaded with gold are desorbed, pregnant solution is process via ionization. At last, solid gold is attained.

Technical parameters

Model Applicable scale Detail of system equipment System instrument detail Operating Parameters
scale of mine (t/d) ore grade(g/t)
GKJD-200 ＜150 2-8 JXZ Desorption columnGLQ filterDJC electrolytic cellCQ circulating pumpDRQ electric heater Wair compressorPYC Desorption liquid trough XL control cabinetGDF Rectifier cabinet resistance diaphragm pressure gaugePressure indicating controllerDiaphragm pressure gaugeVortex flow meterFlow totalizer thermal thermometerTemperature sensor for liquid level meterTemperature indicating regulator Temperature：150±2OCPH：≥13.5Flow：2.4m3/hCurrent：300±100ADecomposition voltage：2-4VInstalled power：75.6(KW)Desorption trough pressure ：0.5-0.57 (Mpa)Cell pressure：0.45-0.52 (Mpa)
GKJD-300 150-300
GKJD-500 300-500
GKJD-700 500-750
GKJD-900 750-1000
GKJD-1000 1000-1500
GKJD-1200 1000-1500
GKJD-1500 ＞1500
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