Refining Services
Comprehensive precious metals refining solutions from Aureus Lentine Gold Purification Group, combining American precision with global standards.
Services List
Advanced hydrometallurgical and pyrometallurgical extraction techniques for maximum recovery and purity from complex ores, tailored for mining operations worldwide. Cast & Minted Bars
Premium investment-grade gold, silver, platinum, and palladium bars produced to international standards, including LBMA certification, with secure packaging and global logistics. Luxury Solutions
Bespoke refining and fabrication services for high-end jewelry, watches, and decorative items, collaborating with artisans for unparalleled quality and craftsmanship. Compliance & Assaying
ISO 17025 accredited laboratory testing using XRF, fire assay, and ICP analysis for precise purity measurements and regulatory compliance across global markets. Recycling & Recovery
Eco-friendly extraction of precious metals from e-waste, jewelry scrap, and industrial residues, maximizing recovery while minimizing environmental impact. Global Trading
Comprehensive spot and forward contracts, hedging strategies, and market analysis for gold, silver, platinum, and palladium with 24/7 access and expert risk management.
Download Catalog
Gold Ore Purification
Our gold ore purification service specializes in extracting and refining gold from raw ore sources, ensuring maximum recovery and purity. Utilizing advanced hydrometallurgical and pyrometallurgical techniques, we process ores from mines worldwide, delivering high-grade gold products tailored to client specifications.
This service is ideal for mining companies and investors seeking efficient, cost-effective purification that adheres to environmental regulations and sustainability standards.
Process Overview
The purification process begins with ore crushing and grinding to liberate gold particles. We employ state-of-the-art leaching techniques using cyanide or alternative eco-friendly reagents, followed by adsorption onto activated carbon. The gold is then eluted, electrowon, and smelted into doré bars. Our facilities incorporate advanced automation and real-time monitoring to optimize efficiency and safety.
Key Benefits
- High recovery rates exceeding 95% from complex ores, including refractory and low-grade deposits.
- Customizable purity levels from 99.5% to 99.99%, meeting LBMA and COMEX standards.
- Integrated environmental controls with zero-discharge systems to minimize waste and comply with EPA regulations.
- Full traceability and certification, including chain-of-custody documentation for responsible sourcing.
- Scalable operations from small artisanal mines to large industrial projects.
- Expert technical support and on-site consulting for process optimization.
Cast & Minted Bars
We offer premium cast and minted bars in various sizes and weights, crafted from refined gold, silver, platinum, and palladium. Our state-of-the-art casting and minting facilities produce investment-grade bars that meet international standards, including LBMA Good Delivery certification.
These bars are perfect for institutional investors, bullion dealers, and collectors, providing secure, storable assets with guaranteed purity and authenticity.
Production Process
Our casting process begins with melting refined metal in induction furnaces under controlled atmospheres to prevent oxidation. The molten metal is poured into precision molds and cooled gradually to ensure uniform density. Minted bars undergo additional stamping with unique serial numbers, weight, purity, and security features. Each bar is individually weighed, assayed, and certified before packaging.
Key Benefits
- Available in standard weights: 1kg, 100g, 50g, and custom sizes up to 12.5kg for gold and silver.
- Serial numbering and tamper-evident packaging with holographic seals for maximum security.
- Options for engraved designs, branding, or commemorative editions.
- Global shipping with fully insured logistics and secure vault-to-vault transfers.
- Full LBMA Good Delivery certification for gold and silver bars.
- Competitive pricing with transparent refining charges and market-based premiums.
Luxury Solutions
Our luxury solutions encompass bespoke refining and fabrication services for high-end jewelry, watches, and decorative items. We work with artisans and designers to create unique pieces using premium precious metals, ensuring exceptional quality and craftsmanship.
From custom alloys to intricate engravings, our team provides end-to-end support for luxury brands and individuals seeking unparalleled elegance and value.
- Custom alloy formulations for specific color and durability.
- Precision casting and finishing for jewelry and accessories.
- Exclusive partnerships with renowned designers.
- Certification of authenticity and origin.
Compliance & Assaying
Our compliance and assaying services ensure the accuracy, purity, and regulatory adherence of precious metals. Using advanced analytical techniques such as X-ray fluorescence (XRF), fire assay, and inductively coupled plasma (ICP) analysis, we provide precise measurements and certifications.
Essential for industries requiring strict quality control, our services help clients meet international standards and avoid costly compliance issues.
- Accredited laboratory testing with ISO 17025 certification.
- Real-time assaying for incoming and outgoing materials.
- Regulatory compliance support for global markets.
- Detailed reporting and documentation.
Recycling & Recovery
Our recycling and recovery services focus on extracting precious metals from secondary sources such as electronic waste, jewelry scrap, and industrial residues. Employing eco-friendly processes, we maximize recovery while minimizing environmental impact.
This service supports sustainable practices, helping clients reduce waste and recover value from obsolete materials in a responsible manner.
- Efficient recovery from e-waste and industrial scrap.
- Environmentally safe dissolution and extraction methods.
- High recovery rates for gold, silver, and platinum group metals.
- Compliance with environmental and recycling regulations.
Global Trading
As a leading player in the global precious metals market, we offer comprehensive trading services including spot and forward contracts, hedging strategies, and market analysis. Our extensive network ensures competitive pricing and seamless transactions worldwide.
Ideal for traders, investors, and institutions, our trading services provide access to liquid markets with expert guidance and risk management.
- 24/7 market access with real-time pricing.
- Customized trading solutions and risk hedging.
- Secure vaulting and logistics for physical delivery.
- Expert market analysis and advisory services.