CIP beneficiation process of gold mine

Process introduction

The gold mine CIP production line process is a non-filtering cyanide carbon slurry process that uses activated carbon to directly adsorb and recover gold from cyanide pulp. It includes the preparation of leaching pulp, cyanide leaching, activated carbon adsorption, gold-loaded carbon desorption, and gold mud obtained by electric shock. There are seven operating stages including the recycling of de-gold carbon and the treatment of leaching pulp.

Application field

There are two main types of ore applicable to the gold mine CIP production line process: one is flotation gold concentrate or amalgamation, gravity separation tailings, and the other is argillaceous oxide ore.

Process introduction

Pulp removal

Electrolyzer

Cyanide pulp should be treated with wood chips and other impurities before adsorption, to prevent wood chips from adsorbing gold and activated carbon in the pulp from mixing into the rich carbon, and to prevent wood chips from blocking the carbon screen.

Leaching and adsorption

Activated carbon is added to the leaching tank. The activated carbon adsorbs the gold in the pulp to become gold-loaded carbon. After the adsorption is completed, the activated carbon is separated from the pulp by a carbon extraction screen.

Desorption electrolysis

Gold-loaded carbon can quickly become gold mud and lean carbon under high temperature and high pressure in a closed system.

Smelt

After simple pickling and removal of impurities, the obtained gold mud can be directly smelted to produce gold ingots.

High efficiency, low consumption, fast desorption electrolysis system

The system is automatically controlled by high temperature, high pressure, no cyanide, and desorption, which has the characteristics of high efficiency, fast speed and low consumption.

High efficiency: When the gold-loaded carbon taste reaches 3000g/t, the desorption rate can reach more than 96%, and the poor carbon taste is faster than conventional desorption electrolysis equipment the desorption electrolysis temperature can be as high as 150°C (30-55°C higher than other models) The working pressure of the system is as high as 0.5Mpa (generally 0.2-0.5Mpa higher than other models), so the desorption electrolysis time is very fast, generally 12 hours, which is shortened by 50%-75%.

Low consumption: The desorption electrolysis temperature is the same, no heat exchange is required. Because of the fast work, the total power consumption is 1/2-1/4 of the conventional system

Cyanide-free: no need to add sodium hydride in the desorption solution, low cost and no pollution

Gold mud has high taste, no need for reverse electrolysis, easy extraction of gold mud

Automatic control: liquid level control system, temperature control system and automatic control system are specially set up

Safety: With triple safety protection measures, that is, the system's own intelligence, automatic pressure limiting and pressure release mechanism, and insurance safety valve