Gold Dressing Agent （GDA） , Gold Recovery Reagent , Gold Separation Refining Chemicals

Product Introduction

Environment Friendly Gold Leaching Agent/Gold Recovery Reagent /Gold Separation Refining Chemicals Is A New Green Environmental Protection Gold Extraction Agent. Metallic Ore Dressing Agent Is Gray White Powder. Gold Leaching Agent Is Widely Used In A Variety Of Gold And Silver Materials Containing Gold And Silver Recovery. It Can Replace The Application Of NaCN Without Changing The Original Process, With Green Environmental Protection, Stable Indicators, Safe Use, Low Comprehensive Cost Advantages.

AuLeach™ Series: The Revolutionary Eco-Friendly Gold Leaching Agent (GDA)

A Sustainable 1:1 Seamless Substitute for Sodium Cyanide – Redefining the Future of Green Mining.

As global environmental regulations tighten and the "Social License to Operate" becomes a critical asset for mining companies, United Chemical presents AuLeach™ (GDA). This high-tech, non-toxic reagent offers an industrial-strength solution for gold extraction, delivering the performance of traditional cyanide without the extreme toxicity or the regulatory burden.

Expert Insight: Breaking the "Cyanide Constraint"

In the modern mining landscape, the "hidden costs" of Sodium Cyanide—including specialized transport, escorts, complex permitting, and high tailings treatment expenses—can erode your project's profitability.

AuLeach™ is engineered to break this constraint. Classified as a common chemical product (HS: 3824999999), it allows mines to bypass the "Red Tape" of cyanide management while achieving 92% - 95% recovery rates. For complex ores (arsenic or sulfur-bearing), AuLeach™ often demonstrates superior selectivity, reducing reagent consumption and stabilizing the leaching circuit.

Technical Data Sheet (AuLeach™ GDA Series)

Certified by United Chemical Quality Control Center | Conforms to International ESG Mining Standards.

Core Competitive Advantages

A. Seamless Process Integration

AuLeach™ is designed for "Drop-in Replacement." You do not need to modify your existing CIP, CIL, Heap Leaching, or Pool Leaching infrastructure. Simply switch the reagent and maintain your standard pH (10.5–11.5) and alkalinity controls.

B. Accelerated Adsorption Kinetics

Field data from our operations in 77 countries shows that AuLeach™ can shorten the adsorption equilibrium time by 2–4 hours compared to traditional cyanide. This increases your plant's throughput and optimizes the efficiency of our AuCarb™ Activated Carbon.

C. Drastic Reduction in Logistics Costs

Because AuLeach™ is not classified as a "highly toxic" substance (Class 6.1), it does not require:

• Armed escorts during inland transport.

• Specialized hazardous goods storage facilities.

• Complex environmental discharge permits for tailings.

• Result: A 30%–50% reduction in total logistics and compliance overhead.

Packaging & International Logistics

We provide robust, tamper-proof packaging designed for the most demanding maritime and inland transit conditions.

Unit Packaging:

• Net Weight: 25 KG per bag.

• Material: PE Paper-Plastic Composite with an internal protective film bag (Moisture-proof & Heavy-duty).

Loading Capacity:

5. Safety and Hazards (MSDS Highlights)

Unlike Sodium Cyanide, AuLeach™ is environmentally friendly and non-flammable. It significantly reduces the risk of accidental poisoning on-site.

• Non-flammable & Non-explosive.

• Tailings Treatment: The residual liquid can be treated easily, meeting international "Green Mining" discharge standards with minimal chemical intervention.

Why Partner with United Chemical?

• Over 30+ years of experience in the "Gold City" of China.

• Global Presence: Active technical support teams in Africa, Southeast Asia, and Central Asia.

• The Triple Threat: We deliver a technical synergy where AuLeach™ (Leaching), AuCyan™ (Booster), and AuCarb™ (Adsorption) work together to secure an extra 2%–5% recovery gain.

Product Applications

MEtallic Ore Dressing Agent Suitable Ore Types: Gold And Silver Oxide Ore, Primary Ore, High Sulfur And High Arsenic Gold Ore, Cyanide Tailings, Gold Concentrate, Sulfuric Acid Slag, Anode Mud, Etc.

Advantages For Gold Ore Dressing Agent Safe Gold Extracting Agent

1.Low toxicity and environmental protection: the product is non-flammable, non-explosive, non-oxidative risk, non-radioactive, low-toxic, belongs to a common chemical product with environmentally friendly.

2. Stable performance: it can reduce the interference of harmful substances such as arsenic and sulfur.

3. Strong Applicability: Suitable for heap leaching, basin leaching and CIP process of oxidized gold and silver ore. The scale can be large or small and is more suitable for large scale heap leaching.

4.  High leaching rate: it can effectively leach gold ions and can achieve faster with a higher recovery rate than using Sodium Cyanide.

5. Selective Adsorption: Activated Carbon has the ability to selectively adsorb gold in gold and copper in the gold leaching solution, which is beneficial for separating copper and gold.

6. Easy to use: The manufacturing process is in line with the sodium cyanide conditions, making it easy to use and promote.

7. Easy to transport: It is a common cargo and can be transported by air, sea, road or rail.

Usage Method

Usage: During Use, The Cyanide-Free Gold Recovery Reagent Should Be Agitated With Alkaline Water At Normal Temperature And Then Dissolved In The Gold Leaching Slurry. In The Process Of Heap Leaching, Basin Leaching And Oxidized Gold Ore Production, The Process Is The Same As The Process For Using Sodium Cyanide. The Pregnant Solution And The Lean Solution In Production Can Be Reused, And The Best Material In The Pregnant Gold Leach Solution Is Activated Carbon. The Gold Leaching Effect Is Best When The Ambient Temperature Is Above 10 ° C. The Reagent May Be Compatible With Gold Cyanide Extract.

Alkalinity: Lime, caustic soda, etc. are commonly used to adjust and maintain the ph value to 10 ~ 12. After the raw ore breaks up or into the pool, it must return water to adjust the alkalinity to ph value of 11 ± 1. Method of application: The dosage is about 0.5-1.0 parts per thousand (500-1000 g of product / Ton of ore). The properties, grade and pH of the ore affect the dosage. The actual dosage can be calculated according to the concentration of the solution.

If you would like to learn more about Leaching agents or purchase leaching agents, you can consult our online customer service or leave a message, and we will contact you as soon as possible!