What is Sodium Cyanide used for?

Sodium Cyanide is commonly used in the mining industry for extracting gold from ores.

How can I optimize the use of chemicals in ore processing?

Optimizing the use of chemicals in ore processing involves several strategies to enhance efficiency and cost-effectiveness:

Are there specific regulations for the use of mining chemicals?

Yes, the use of mining chemicals is subject to various regulations that govern their production, use, storage, and disposal. These regulations are designed to protect human health and the environment. Key regulatory aspects include:

What is a settling agent, and how does it work in mining?

A settling agent, also known as a flocculant, is a chemical used to accelerate the settling of suspended particles in a liquid. In the context of mining, settling agents are crucial for improving the efficiency of ore processing and tailings management.

How do I store Sodium Cyanide safely?

Sodium Cyanide should be stored in a cool, dry place, away from incompatible materials and in accordance with safety guidelines.

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Optimizing Gold Extraction in Sudan: High-Yield AuCyan™ NaCN, AuCarb™ & AuLeach™ via Port Sudan

UnitedChemical08-25-2026Sudan40

Elevating Gold Extraction Efficiency in Sudan: Advanced Metallurgical Reagents

Conquering Arid Climates and Complex Ores with High-Purity AuCyan™ NaCN, AuCarb™ & AuLeach™ via Port Sudan

Sudan stands as one of Africa’s premier gold-producing nations, with expansive operations spanning from the Red Sea Hills to the Nubian Desert. Renowned sites such as the Hassai Gold Mine and Block 14 highlight the region's immense potential. However, metallurgical engineers and plant managers in Sudan operate under challenging conditions: extreme ambient temperatures, rapid water evaporation rates, and highly abrasive, saline ore slurries.

To maintain profitability and maximize yields across CIP, CIL, CIC, heap leaching, and vat leaching circuits, operations require chemical reagents of uncompromising quality and stability.

United Chemical is a global leader in providing factory-direct, premium gold mining chemicals. By strictly adhering to international maritime transport protocols (CIF/FOB), we deliver our flagship products securely to Port Sudan, ready for your inland truck freight. Please note our standard Minimum Order Quantity (MOQ) is 1x20' FCL.

Flagship Gold Extraction Solutions for Sudanese Mines

AuCyan™ Sodium Cyanide NaCN (≥98.3%)

The global standard for rapid gold complexation, formulated for extreme stability in arid, high-temperature processing environments.

Unmatched ≥98.3% Purity: Engineered to maximize active free cyanide (CN-) release. This ultra-high purity prevents the accumulation of insoluble residues in vat leaching and CIL tanks, ensuring rapid gold dissolution even when processing challenging desert ores.
Heat & Evaporation Resilient: The rapid kinetics of AuCyan™ mean shorter required residence times in agitation tanks, which is critical in Sudan where process water evaporation is a significant operational cost.

📊Technical Specification: The 98.3% Purity Standard

Surpassing industry benchmarks, our latest production batches consistently achieve "Superior Quality" grades. Below is the certified performance data .

Testing Items	Standard (GB/T 19306-2003)	AuCyan™ (Typical)	Operational Impact
Sodium Cyanide (NaCN)	≥ 98.0%	98.3%	Maximum gold dissolution kinetics and recovery rates.
Sodium Hydroxide (NaOH)	≤ 0.5%	0.13%	Superior pH stability; prevents premature hydrolysis.
Sodium Carbonate (Na2CO3)	≤ 0.5%	0.18%	Minimized impurity interference in the leaching solution.
Moisture (H2O)	≤ 0.9%	0.3%	Enhanced solid stability during long-term storage and sea transit.
Insoluble Substances	≤ 0.05%	0.02%	Anti-clogging formula; protects critical pumps and nozzles.

Applicable Metallurgy Processes: Heap Leaching, Vat Leaching, Carbon-in-Leach (CIL), Carbon-in-Pulp (CIP), Carbon-in-Column (CIC)

AuCarb™ Gold Recovery Coconut Shell Activated Carbon (≥99% Hardness)

Elite adsorption media specifically calcined to endure the severe mechanical abrasion found in heavy slurry circuits.

Guaranteed ≥99% Hardness: Sourced from premium Coconut Shells, this Carbon will not shatter or break down into fines under the heavy agitation of CIP and CIL tanks, absolutely securing your adsorbed gold from being lost to tailings.
Superior Micropore Structure: Features an optimized Iodine Value, delivering unparalleled adsorption speed, making it perfectly suited for high-flow Carbon-in-Column (CIC) and continuous CIP methodologies.

📊 AuCarb™ Series: Core Parameters Intuitive Comparison Table

To facilitate a more intuitive selection process tailored to your specific metallurgy circuit, we have summarized the core technical parameters of our four flagship AuCarb™ variants.

Core Testing Parameter	AuCarb™ BC1100	AuCarb™ AC50	AuCarb™ AC55	AuCarb™ AC60
Market Benchmarking Positioning	Conventional Heap Leach / High Cost-Performance	Comparable product: Jacobi G208S	Comparable product: Jacobi G209S	Advanced choice for Large Scale / Comparable: Jacobi G210S
Apparent Density	0.40 - 0.50 g/ml	0.48 - 0.55 g/ml	0.45 - 0.55 g/ml	0.45 - 0.55 g/ml
Ball-pan Hardness	≥ 98.5%	≥ 99%	≥ 99%	≥ 99%
Platelet Content	≤ 5%	≤ 5%	≤ 5%	≤ 5%
Attrition	≤ 2%	≤ 1.5%	≤ 2%	≤ 2%
Total Ash Content	≤ 5%	≤ 3%	≤ 3%	≤ 3%
Moisture	≤ 10%	≤ 5%	≤ 5%	≤ 5%
Adsorption Capacity (K Value)	/	≥ 26 Kg/t	≥ 28 Kg/t	≥ 30 Kg/t
Adsorption Rate (R Value)	/	≥ 50%	≥ 55%	≥ 60%
Iodine Number	≥ 1100 mg/g	/	/	/
Butane Activity	/	≥ 19.5%	≥ 21%	≥ 23%
CTC (Carbon Tetrachloride Activity)	/	≥ 50%	≥ 55%	/

* Packing & Shipping: Based on standard 6x12 Mesh or 8x16 Mesh specifications; strictly packed in 25kg heavy-duty laminated elastic PE bags. We offer containerized global shipping under FOB, CIF, CFR terms.
* Execution Standards: Complies with American ASTM standards and A.A.R.L. internal mining testing standards. The product has passed third-party inspection and test samples can be provided upon request.

Applicable Metallurgy Processes: Carbon-in-Pulp (CIP), Carbon-in-Leach (CIL), Carbon-in-Column (CIC).

AuLeach™ Gold Leaching Agent (GDA) - Non-Hazardous

The modern, non-hazardous alternative to traditional cyanide that drastically simplifies your import supply chain.

Strictly Non-Hazardous Classification: Because AuLeach™ is certified as non-hazardous, it bypasses complex dangerous goods permits. This significantly speeds up customs clearance at Port Sudan and lowers inland transportation insurance costs.
Seamless Drop-in Replacement: Ideal for Heap Leaching and Vat Leaching. No new equipment is required. Plant operators simply adjust the system to maintain a pH level between 10.5 and 11.5 to achieve exceptional leaching kinetics comparable to traditional methods.

Strict Logistics Protocol & Transport Security

At United Chemical, we prioritize absolute safety and regulatory compliance in global chemical distribution:

FOB & CIF Ocean Freight Only: We execute secure maritime shipping direct to major hubs like Port Sudan. Please note we do not provide DDP or direct-to-site inland delivery; local forwarders must manage the final trucking leg.
No Railway Transport: Under strict current international and domestic regulations, none of our products can be transported via railway networks. All inland movement from the port must be conducted by certified heavy-duty road transport.
Minimum Order Quantity: To ensure logistical efficiency and pricing benefits, our standard MOQ is strictly 1x20' FCL (Full Container Load).

Validate Performance on Your Unique Ores

We invite Metallurgists and Plant Managers across Sudan to run independent laboratory evaluations. To support your process optimization, we provide complimentary lab-scale samples of our safe-to-ship products.

⚠️ Important Safety Notice: Due to strict international aviation and security laws regarding highly toxic chemicals, AuCyan™ Sodium Cyanide NaCN cannot be shipped as a sample under any circumstances. Free samples are exclusively available for AuCarb™ Activated Carbon and AuLeach™ Gold Leaching Agent.

Request AuCarb™ & AuLeach™ Samples

Frequently Asked Questions: Mining Chemicals in Sudan

1. Can we transport AuCyan™, AuCarb™, or AuLeach™ via the railway system from Port Sudan?

No. Railway authorities strictly prohibit the transportation of these industrial and chemical goods. All inland logistics from Port Sudan to your mine site must be handled exclusively via heavy-duty road trucking.

2. What is your Minimum Order Quantity (MOQ) for clients in North Africa?

To guarantee the best factory-direct pricing and ensure maritime shipping safety, our strict Minimum Order Quantity for all commercial orders is 1x20' FCL (Full Container Load).

3. Why is AuCarb™ mandated to have ≥99% hardness?

In CIP and CIL agitation tanks, the carbon is subjected to intense grinding forces from the ore slurry. The guaranteed ≥99% hardness ensures the carbon granules do not fracture into fines, preventing your precious adsorbed gold from escaping into the tailings.

4. Does AuLeach™ Gold Leaching Agent require special hazardous goods permits in Sudan?

No. AuLeach™ is classified globally as a non-hazardous product. This classification avoids the complicated bureaucratic red tape, additional storage licensing, and high insurance premiums normally associated with hazardous imports at customs.

5. How do I order a free sample of AuCyan™ Sodium Cyanide to test?

For safety and legal reasons, we absolutely do not ship samples of AuCyan™ Sodium Cyanide. International aviation laws strictly forbid it. We only provide free testing samples for our AuCarb™Activated Carbon and AuLeach™ non-hazardous agent.

6. What are the operational parameters for utilizing AuLeach™ in Vat Leaching?

For optimal extraction rates during vat leaching or heap leaching, your metallurgists must monitor and maintain the solution's pH strictly between 10.5 and 11.5. This is easily managed using standard alkali agents like lime or sodium hydroxide.

7. Do you offer direct-to-site DDP delivery to mines in the Nubian Desert?

No, we operate strictly on FOB or CIF terms for the African market. We ensure safe maritime delivery to Port Sudan. From the port, your designated local freight forwarder will handle customs clearance and overland trucking to the mine site.

8. Why is the ≥98.3% purity of AuCyan™ critical for high-temperature desert operations?

High evaporation rates in arid environments concentrate impurities in the process water. The ≥98.3% purity of AuCyan™ ensures you are not adding inactive salts or byproducts into your circuit, maintaining a clean chemical balance and maximizing the active cyanide available for gold dissolution.