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High Purity Zinc Dust for Gold Merrill-Crowe Processing

AAB Group ZP 325G high purity zinc dust is specially designed for the Merrill–Crowe gold recovery process. It features high purity, stable particle size distribution (325 mesh grade), and excellent reactivity. The product enables fast and efficient precipitation of gold and silver from cyanide solutions, significantly improving precious metal recovery while reducing zinc consumption. With low impurity content and superior flowability, ZP 325G ensures accurate dosing and stable operation in large-scale mining and metallurgical applications. It effectively enhances process efficiency, lowers overall operating costs, and delivers reliable performance for high-standard gold refining systems.

Chemical Name :
Zinc
Application :
Metallurgical Industry, Paint & Coating Industry, Organic Synthesis, Battery Industry, etc.
Product model :
ZP 325G
Appearance :
Light grey powder

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product introduction

As a leading supplier of advanced metal powders, we provide high purity zinc dust specifically engineered for Merrill–Crowe applications, delivering superior performance, consistent quality, and excellent recovery efficiency. In the Merrill–Crowe process, zinc dust is used after deoxygenation of the pregnant solution to precipitate dissolved gold and silver. The performance of zinc dust directly affects recovery rate, filtration efficiency, and overall operating cost.

Our high purity ZP 325G zinc dust is engineered to maximize precious metal recovery while minimizing zinc consumption and operational impurities, making it an ideal choice for large-scale gold refining plants.

Technical Data

Items	Standard
Appearance	Light grey powder
Total Zinc	≥99.0%
Metal Zinc	≥96.0%
Residue on Sieve(45micron)	≤0.05%
Pb (Lead)	≤0.01%
Fe (Iron)	≤0.01%
Cd (Cadmium)	≤0.01%
Average Paticle	7.0~12.0
Density	7.0±0.05

Key Advantages

High Purity: Low impurity content ensures minimal interference in the cementation reaction, improving overall gold recovery efficiency.
High Reactivity: Controlled particle morphology enhances dissolution kinetics and promotes faster precipitation.
Consistent Particle Size Distribution: Ensures stable filtration performance and reduces zinc consumption.
Low Lead and Heavy Metals Content: Helps maintain solution cleanliness and improves downstream refining quality.
Excellent Flowability: Facilitates accurate dosing and automated feeding systems in industrial operations.

Quality Assurance and Technical Support

All products are manufactured under strict quality control systems and can be customized according to customer process requirements. We provide stable supply, technical consultation, and application support to ensure optimal performance in different processing conditions.

Main Application

1. Metallurgical Industry: Widely applied in metallurgical production, including precious metal extraction (e.g., gold cementation/precipitation).

2. Paint & Coating Industry: A key raw material in the manufacture of paints, coatings, and various chemical products.

3. Organic Synthesis: Used as a reducing agent in organic synthesis processes.

4. Battery Industry: Used in battery manufacturing.

Package and Storage

30kg/ drum with inner plastic bag, sealed for moisture protection.
Keep packaging containers tightly sealed to prevent moisture absorption, caking, or oxidative deterioration. Do not store together with oxidizing agents, acids, alkalis, amines, or flammable materials.

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Persisting on the operation concept of "Pursue honesty and quality at the same time, win hearts and profits together", the China AAB group’s people insist on the enterprise spirit of “environmental-friendly and continuous innovation, and dedicates service to all followers and customers around the world.” we have become long-term stable suppliers for many paint giants in the Europe, North American, the Middle East, Southeast Asia, Japan, South Korea and other countries and regions.