ENES

Mineral leaching

We manufacture lead nitrate for mineral leaching. This is the process to extract a species of interest, such as gold (Au) and silver (Ag) through chemicals substances that dissolve them.

Benefits of Lead Nitrate for the mineral leaching process in mining:

Lead Nitrate

We can supply lead nitrate quickly and timely to USA, Canada, Central America, Europe, etc.

Contact us

Lead nitrate available products

proceso merrill crowe

1 ton superbags

proceso merrill crowe

25 kg bags

Specifications:

  • Formula: Pb(NO3)2
  • Physical description: White crystals
  • CAS No.: 10099-74-8
  • Packaging: Superbag
  • Qty. per package: 1,000 kg

Characteristics:

  • Purity: 99% min.
  • Insoluble Materials: 0.20 % max
  • Humidity: 1.0% max.
  • Copper: 20 ppm max
  • Iron: 20 ppm max.

Characteristics and Advantages of the Leaching Process using Cyanide and Lead Nitrate

Características

Characteristics

  • Metals are dissolved in an alkaline cyanide solution.
  • The most commonly used oxidant is air oxygen.
  • Types: Tank leaching and Heap leaching.
Ventajas

Advantages

  • Stable gold and silver compounds are formed.
  • High-efficiency dissolution of gold and silver.
  • Lower cost compared to other technologies (thiourea, thiosulfate, etc.)
  • Lead nitrate use counteracts the negative effects of sulfides in the system.

Mineral Leaching Process

1
Reagent diffusion on the mineral surface
2
Reagent adsorption on the mineral surface
3
Chemical reactions between minerals and reagents
4
Separation of reaction products on the mineral surface
5
Diffusion of soluble products in the solution
Contact us

Lead Nitrate Use Best Practices

  • Prepare a lead nitrate solution (4-10%).
  • If possible, use process water low in sulfates and carbonates to prevent lead precipitation.
  • Do not manipulate the product unless you have read and understood all safety precautions.
  • Always use the indicated PPE.
  • Keep the product under lock, always in compliance with storage conditions.
  • Eliminate the contents and/or containers in compliance with the regulations for hazardous wastes, containers, and residues.

Frequent Questions

What are the final products of this process?
A Gold (Au) and Silver (Au) pregnant solution is obtained.
During which leaching process stage is lead nitrate used?
This compound is used when cyanided is added, or during the pre-treatment stage.
Where do you ship this product?
Our plant is located in Mexico, and we ship it to all the world. We have customers in USA, Canada, Central and South America.

Request a quote or consulting call with an expert

Enter your information and we will put you in contact with our distributor, who will give you customized information.
Fill out my online form.