A system for desorbing and electrowinning gold from a gold-bearing charcoal under high temperature and high pressure conditions.The advantage is that under the condition of high temperature and high pressure,the desorption rate is above  98%;the desorption electrolysis    temperature is the same,no heat exchange  is needed,and the power consumption  is 1/4~1/2 of the conventional system due to rapid work; the non-toxic desorption combination agent Carbon- containing     activator,which plays a role in regeneration of charcoal,does not require    fire regeneration,saves carbon    regeneration cost;has low cyanide cost and  no pollution;high grade gold mud,no need for reverse electrolysis,easy to extract.

Gold and silver in the desorbed pregnant solution exist in the form of Au(CN)₂⁻ and Ag(CN)₂⁻ complex ions. During the electrolysis process, the gold and silver in ionic state gain electrons at the anode plate, are reduced to metallic gold and silver, and deposit (precipitate) on the surface of the cathode (carbon fiber or steel wool).

The complete set of equipment consists of three main modules: the reaction vessel, the heating system, and the gas circulation system.

Advantages

(1) Since solvent steam desorption and pregnant solution electrolysis are separated and operate independently without mutual interference, simultaneous solvent steam desorption and solvent recycling are achieved. No solvent steam enters the electrolysis process, ensuring the safety of the technology in application.

(2) The separation of desorption and electrolysis processes enables fully automated monitoring throughout, ensuring both operational safety and economic security in gold production.

(3) This control system ingeniously selects temperature and liquid level detection points and determines sensor installation methods, ensuring the sealing performance of the entire setup and eliminating potential safety hazards.

This control system features short electrolysis time, low tail solution grade, high safety and reliability, advanced automation, and excellent economic benefits, making it widely adopted in gold enterprises.