Biopolymer

Used for Enhanced Gold Extraction

Application

Metallurgical recovery of precious metals

Benefits

An eco-friendly liquid additive to the cyanidation process

Accelerated reaction times using existing kinetics

Recovery efficiency can be increased between 3-5%

Reduction of cyanide usage up to 20%

Lime or other alkalizer agent reduction

Cleaner process can produce tailings with lower toxicity levels

Allows for gold and precious metals with higher purity

No additional special equipment is needed

Efficacy easily validated in your labs

Scalable using your existing tank injection configuration

Low dosages of 120 - 500 g/ton

MetaFLO biopolymer chemistry has been designed to enhance the cyanidation process. By reacting with high oxygen-reduction potential elements in the ore, MetaFLO's biopolymer can increase gold extraction percentages by 3-5%.

Cyanidation

Our patented biopolymers are a liquid additive to the cyanidation process and allow the cyanide to more easily react with the liberated gold.

In addition to this reduction, there is also a resulting increase in recovery between 3-5%. By oxidizing the metals and by exposing the particles to be reacted, this makes the process more selective, resulting in less contaminants in the water.

An eco-friendly liquid additive to the cyanidation process

Accelerated reaction times using existing kinetics

Recovery efficiency can be increased between 3-5%

Reduction of cyanide usage up to 20%

Cleaner process can produce tailings with lower toxicity levels

Allows for gold and precious metals with higher purity

No additional special equipment is needed

Efficacy easily validated in your labs

Scalable using your existing tank injection configuration

Low dosages of 120 – 500 g/ton

Cyanide Reduction

Increased Recovery

Reaction Acceleration

How Does It Work?

ExtracTech works as a super oxidant and breaks/weakens covalent bonds exposing metals of interest. It reacts with high ORP (Oxidation Reduction Potential) value metals, making them inert. As a super oxidant, ExtracTech also provides additional oxygen to the reaction, allowing for reaction acceleration. As ExtracTech is a highly alkaline product, there is also the possibility that CaOH could be removed from the process.

In the example below, the mineral composition includes Silicon, Arsenic, Sulfur, Iron, Copper, Silver and Gold.

The cyanide cannot see the gold before being exposed, so it needs to react with the metals on the surface first to then be able to see the gold.

Cyanidation-with-having-ExtracTech-added

ExtracTech will react with the metals surrounding the gold particles allowing the CN- to see the gold particle faster.

It will react in order of metal reactivity and break bonds, releasing energy in a mildly exothermic reaction.

It will react faster with non-metals, and with metals with a high ORP (Oxidation-Reduction Potential), like iron.

ExtracTech has been tested successfully for enhanced Gold extraction with gold mines in Brazil.

Before ExtracTech Reaction

After ExtracTech Reaction

How Much Do I Need to Use?

With ExtracTech, a little goes a long way. For heap leaching, the recommended dosage is between 120g/ton to 500g/ton.

Biopolymer

used for Cyanide Reduction

As an additive to your existing cyanidation process, ExtracTech can also reduce your cyanide usage by up to 20% — and by introducing additional oxygen to the process, reaction times may also be accelerated.

Polymers for Solidification

Are you concerned about toxic waste water or sludges from your mining operations? MetaFLO’s polymer solutions can reduce toxicity, and then solidify and stabilize the remaining sludges and slurries for safe and environmentally-friendly disposal.

Mining operations can generate several different types of waste streams:

Sump pits

Tailings

Coal Ash Pits

Wash Slime Waste

Minerals Refinement Fractions

Often these waste streams need solidification and binding of free liquids to be shipped to a licensed disposal facility. Conventional sorbents—sawdust, lime kiln dust, corn cob—usually expand waste volume by 50-100%. This greatly increases disposal expenses by raising transportation costs due to more loads and, of course, higher landfill disposal fees. The use of MetaFLO polymers allows waste generators to meet EPA 9095 (Paint Filter Test) requirements with <1% expansion!

Our Biopolymers

MetaFLO’s biopolymers have been purposefully engineered to provide a variety of cost-effective solutions for multiple applications, from dust suppression to gold extraction. Our products are environmentally safe, easy to use, and can be tailored to meet specific needs. Contact us for more details.

✓ Soil Stabilization

✓ Dust Suppression

✓ Gold Extraction & Cyanide Reduction

✓ Water Remediation

✓ Cement Enhancement