As shown in the diagram below, we process all types of material, including hazardous waste. We extract precious metals from these waste streams, enabling our clients to recover value from their materials.
Maximizing Returns for Our Customers
Process material to facilitate handling and sampling
Determine precious metal content using in-house world-class assay laboratory
Accurate precious metal calculations as a result of top notch laboratory
Prepare material for final processing
Final financial settlement is calculated and clients are paid approximately 45 days after receipt.
Clear, easy to read settlements
Flexible payment options, including pool accounts for precious metals
Our Process
Offering Five Routes to Revenue
Mechanical reduction is effective for size reduction for electronics, printed circuit boards, assemblies and components. Size reduction allows us to collect a homogeneous sample to determine material value.
Roasting is used for wet materials and material containing organics, including sludges, residues and burnables. We are equipped with high capacity natural gas-fired ovens to process large volumes of materials. Our ovens are equipped with afterburners and a baghouse for pollution control and oven efficiency. The roasting process burns off many impurities and produces dry material suitable for sampling or additional processing.
Dry crushable materials are milled, enabling us to take a representative sample from our rotary sampler to determine precious metal content. We utilize vibratory and vertical ball mills.
Typically, plating and stripping solutions will be plated out to extract precious metals from the solution. Plated parts can be submerged in a chemical bath to recover precious metals from the parts. Our chemical processing includes cyanide stripping.
We operate ten natural gas-fired furnaces with graphite crucibles to produce precious metal bullion. Alloying precious metals with copper ensures melt homogeneity and accurate sampling results.
In-House Assay Lab – Accurate Measurements and Fast Financial Settlements
Our in-house lab offers fast turn-around times, allowing SLS to provide quick financial settlements for our customers. Our assay lab processes samples from customers’ materials to determine precious metal percentages. In addition to accurate sampling and lab processing, we offer fire assays, typically available only through smelters. Fire assays allow us to accurately measure even the smallest amounts of precious metal content.
What you get paid is directly tied to our ability to evaluate and process your material accurately and effectively.
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