Process

Since its establishment 20 years, Xinhai has been committed to the Research and development of cyanide gold process, technology and equipment, after the constant study of Xinhai research technicians, Xinhai has formed a set of efficient, environmental, energy-saving and economic Xinhai gold CIL process.

【Application】:

Mainly applies for the process of above 1g/t grade gold ore and gold ore with large bearing ore volume: silver, platinum, copper, etc.

Recommend Xinhai gold flotation process for small gold plant.

【Process】:

  • process1 Arrow Leaching Pulp Preparation
  • process2 Arrow Cyaniding Leaching and Carbon Adsorption
  • process3 Arrow Gold Loaded Carbon Desorption
  • process4 Arrow Pregnant Solution Electrodeposit
  • process5 Arrow Carbon Acid Regeneration
  • process6 Leaching Pulp

If you have any questions, please contact us by the following ways, and we will provide you with better help!

Xinhai Gold CIL Process Description:

1.

Leaching Pulp Preparation

Flow:

Add the gold ore slurry into 9 leaching agitation tanks, pour in cyanide solution in first 2 tanks , activate carbon in the following 7 tanks for the reverse-absorption process (the number of tanks depend on the capacity size).

Advantages of leaching pulp in Xinhai gold CIL process:
  • Greatly reduce the number of leaching tank;
  • Shorten the time of gold staying in the cyanide pregnant solution;
  • Reduce the capital backlog in gold staying process, get gold quickly, fast capital return.
Leaching Pulp Preparation
2.

Cyaniding Leaching and Carbon Adsorption

Equipment:

Washing Thickener

Material:

Xinhai specialcoconut shell activated carbon

Material feature:

Xinhai special coconut shell activated carbon is featured with small hole, high reaction activity, wear-resistance and renewability, the adsorption speed increases 30%.

Advantages of carbon adsorption in Xinhai gold CIL process:
  • Xinhai special coconut shell activated carbon greatly improves golf recovery from associated metal, significantly improves the economic benefit and production efficiency;
  • Xinhai washing thickener adopts continuous discharging, which reduces multiple cycles of hydrothermal gold, recycle early; extends the time of pulp concentration, increases the leaching rate;
  • Xinhai washing thickener achieves countercurrent washing, which has large volume and high washing efficiency;
Cyaniding Leaching and Carbon Adsorption
3.

Carbon Acid Regeneration

Advantages of carbon acid regeneration in Xinhai gold CIL process:
  • Ensures the minimum carbon gold loses during transmission, it lower the gold loses and the processing line is easy to maintain.
Carbon Acid Regeneration
4.

Pulp Agitation

Advantages of pulp agitation in Xinhai gold CIL process:
  • Convey pulp fast, making pulp in small cycles;
  • Reduce power consumption 70%;
  • Solid materials suspend evenly;
  • Activated carbon with low wear;
  • High gold recovery rate.
Pulp Agitation
5.

Gold Loaded Carbon Desorption

Advantages of desorption electrolysis system in Xinhai gold CIL process:
  • Adopts Xinhai high-temperature and high-pressure desorption (150℃,0.5Mpa), which can desorb 99% gold within 2-6 hours;
  • Pregnant solution contains high concentrations of gold and silver Cyanide complex ions, and less impurity ions, after the process of Xinhai efficient, low-powered and fast desorption electrolysis system, high purity solid gold can be obtained safely and economically.
Gold Loaded Carbon Desorption
Install thickener Workers are welding
Finished desorption electrolysis system Desorption electrolysis system in installation Xinhia Global CIL Gold Projects Collection
Pose for Xinhai group photo Put into production
2.

Cyaniding Leaching and Carbon Adsorption

Equipment:

Washing Thickener

Material:

Xinhai special coconut shell activated carbon

Material feature:

Xinhai special coconut shell activated carbon is featured with small hole, high reaction activity, wear-resistance and renewability, the adsorption speed increases 30%.

Advantages of carbon adsorption in Xinhai gold CIL process:
  • Xinhai special coconut shell activated carbon greatly improves golf recovery from associated metal, significantly improves the economic benefit and production efficiency;
  • Xinhai washing thickener adopts continuous discharging, which reduces multiple cycles of hydrothermal gold, recycle early; extends the time of pulp concentration, increases the leaching rate;
  • Xinhai washing thickener achieves countercurrent washing, which has large volume and high washing efficiency;
Cyaniding Leaching and Carbon Adsorption
4.

Pulp Agitation

Advantages of pulp agitation in Xinhai gold CIL process:
  • Convey pulp fast, making pulp in small cycles;
  • Reduce power consumption 70%;
  • Solid materials suspend evenly;
  • Activated carbon with low wear;
  • High gold recovery rate.
Pulp Agitation
Install thickener Workers are welding
Finished desorption electrolysis system Desorption electrolysis system in installation Xinhia Global CIL Gold Projects Collection
Pose for Xinhai group photo Put into production

If you have any questions, please contact us by the following ways, and we will provide you with better help!

Xinhai CIL Gold Process Flow

Xinhai CIL Gold Process Flow

Cases

Tanzania 1200tpd Gold Project

In January 2015, Xinhai undertook Tanzania 1200tpd gold project of a mining company, the project adopted Xinhai gold CIL process, after construction design and installation, it has been put into production now, the recovery rate of gold production line reached expected goal, the final gold leaching rate was 91.5%, which brought large amount of economic benefits for clients and obtained high praise from clients.

Zimbabwe Huangzhi 700tpd Gold Project

In March 2015, Xinhai took charge of African Zimbabwe Huangzhi 700tpd gold project, the plant is mainly quartzite gold mine, most is oxidized ore or primary ore with low sulfur ore, so Xinhai chose gravity separation + all-sliming CIL process, which achieved efficient recovery of gold, save 15% cost. Equipment still operate smoothly after put into production one year, customer are very satisfied with this result.

Class A Design Qualification, 20 Years of Gold Processing Experiences

Xinhai has make Class A design Qualification, set up mine design institute and mineral processing research institute, more than 200 professionals provide the technical support service for gold processing plant, Since its establishment 20 years, Xinhai has been committed to gold processing service the development and innovation of equipment, and has formed the complete gold processing system. Xinhai concentrates on providing the Turnkey Solution for Mineral Processing Plant that is research and design- complete equipment manufacturing and procurement- commissioning and delivery”, striving for building the international leading enterprise in gold processing plant industry.

Certification Certification Certification Certification

EU Certification International Quality

"Create a global brand, based on global gold markets " has been one of the strategic thought of Xinhai, depending on its professional gold processing service, Xinhai has got the EU certification, and ISO9001:2008 quality management system certification as early as in 2008, Xinhai is classified as the assured brand with advanced products and standard quality!

Certification Certification Certification Certification

88 patents technologies, more than 500 mineral processing plants in the world

Xinhai currently has 88 patents technologies, the gold dressing plant projects spread among China, Southeast Asia, South America, Africa, Iran, Russia, Mongolia, North Korea and other places, and Xinhai has established offices around the world.

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