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professional design cyanidation process of gold

Product Description

Our Gold Separator Plant has been sold to all over the world.You can give us your requirement,then we will give you a perfect project.


Product Description

cyanidation process of gold—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.


The 1500kg/batch electrowinning device in Zimbabwe


Product Feature

cyanidation process of gold— 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°C(generally 30-55°C 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.



cyanidation process of gold — Application

Desorption electrolysis system is applied to recover solid gold from carbons in the cyaniding process.


Work Principle

cyanidation process of gold— Working principle

When the desorption system is added with anions which are more easily absorbed by activated carbons, Au(CN)2 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

cyanidation process of gold— Technical parameters




Applicable scale

Detail of system equipment

System instrument detail

Operating Parameters

scale of mine (t/d)

ore grade(g/t)







JXZ Desorption column
electrolytic cell
circulating pump
electric heater   Wair compressor
Desorption liquid trough   XL control cabinet
Rectifier cabinet

resistance diaphragm pressure gauge

Pressure indicating controller

Diaphragm pressure gauge

Vortex flow meter

Flow totalizer thermal thermometer

Temperature sensor for liquid level meter

Temperature indicating regulator

ecomposition voltage:2-4V
nstalled power:75.6(KW)
Desorption trough pressure :0.5-0.57 (Mpa)
Cell pressure:0.45-0.52 (Mpa)


















Kush Clients Consulting Mineral Processing

Clients of Kush project paid a special visit to Xinhai on Jan 18, 2014, for detailed communication with the Xinhai technicians. They made an estimate of the size , investment as well as earnings of the mill plant. During this meeting, based on rich experience of mineral processing and mill plant, Xinhai technicians wined the clients trusts for answering clients questions.

Kush Gold Mineral Processing Test


After the contract was signed, Clients posted to Xinhai two packages of samples, totally weight 400kg. Xinhai Mineral Processing Institute provided comprehensive mineral processing test after precious test.

The mineral processing test made an analysis to the gold content which is 4.31g/t, thus Xinhai technicians decided to recovery gold directly through the solution of CIP cyaniding, which including grinding the raw ore to 88.0% -200mush,and using lime as alkali, then adding sodium cyanide, agitating then leaching.The pulp density can reach 40%, 4kg/t of slime, 2kg/t sodium cyanide, the leaching rate of gold can get 91.45% which is perfectly good. While it was worth mentioning that the Institute noticed that if adding Gravity Separation, the recovery rate will not notably improved while increased the mineral processing cost. For the benefits of the customers, Xinhai technicians suggested cyaniding directly, while the customers firmly believed that with the deepen exploiting, the gold grade can increase to 8g/t, and considering finding large particles around the mine, technicians decided to adopt the solution of gravity separation + cyaniding the tailings after gravity separation.

Mine Design

Mine design, an vital part of Xinhai mineral processing EPC, was in charge of Xinhai Mining Design Institute with Class A Certification. For better suiting the actual situation of the project, technicians of the Mining Design Institute made field survey to the surroundings such as terrains, waters and power supply, then designed the construction drawing elaborately and gave 3D simulation based on the processing flowchart and the equipment selection mine processing test provided.

Installation & Commissioning

After the Equipment manufacturing and purchasing, the perfect packaging and delivery system can guarantee the security service.

Xinhai Installation & Commissioning Operation Center Project No.1 was in charge of as well as full participation the field installation & commissioning. On the one hand, they supervised the construction site to inspect any problems, on the other hand , they optimized the production and management process to improve interests for customers.


Xinhai Group

Xinhai mining was established in 1993.And was the pioneer of China beneficiation industry.Our company could provide mining machine more than 600,and have the most equipment in China.At present,Xinhai business includes Mineral Processing EPC,Wear-Resistant Rubber,LFC Machinery,and Mining Investment.

Q:Hi, are you mining machinery manufacturer?

A:Yes, we can also provide amples test, mine design, equipment manufacture, after-sale service, etc.

Q:which country have your products been exported?

A:Many country, such as India, Ethiopia and so on. And our company has agencies in Zimbabwe, Sudan and Tanzania.

Q:Can you do mineral processing test?

A:Yes, not only can do it in your country, also can back to our company


Contact Us

Your email address and telephone will not be shared or published!

Please fill in your need products and your message and do not forget mail and/or phone if you like to be contacted.

we are the professional machine manufacturer in China.

I need to ask you some details for sending you the more suitable quotation,

1.what is the raw material do you want to process?

2.what is the capacity per hour do you need?

3.what is the raw material input size?

4.what is the output size of your product?

Request for Quotation

Of course, free live-chat is available and you can get help immediately.Or you can send me email .

You can get the price list and a Xinhai representative will contact you within one business day.


I hope you can tell me these details,i will give you the best quotation ASAP ,thanks. Your satisfaction is our greatest pursuit, we would like to sincerely for your service! We look forward to your inquiry!

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