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Precious Metal Recycling Applications

  • Solutions for recovering metals

    The mining industry relies on Calgon Carbon’s Granular Activated Carbon (GAC) to recover gold and other precious metals. Calgon Carbon’s ISEP® Technology is used to recover precious, rare earth and base metals, uranium, copper, nickel and zinc from ore, waste and reclaim streams. Our high-quality activated carbons have been developed and successfully proven to maximize efficiency by reducing the loss of precious metals and the consumption of carbon in three precious metal extraction techniques: Carbon-in-Leach (CIL), Carbon-in-Pulp (CIP) and Carbon-in-Column (CIC). When Ion Exchange is employed for metal recovery in leach and waste streams, Calgon Carbon’s ISEP ® system provides a continuous, consistent and high purity concentrated product while minimizing the use of chemicals, resin and wastes. Calgon Carbon’s continuous ion exchange systems are the most flexible, robust, and accepted in the industry.

    By Calgon Carbon Corporation based in Pittsburgh, PENNSYLVANIA (USA).

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    Recycling equipments for non-ferrous scrap metal shredding & recycling

    Non-Ferrous Metal Recycling is a large industry focusing on the recovery of metals such as aluminum, brass, copper, and even precious metals from electronic scrap. The applications and needs of non ferrous metal recyclers vary greatly. These can include a large corporate recycler buying UBC bales for shredding to be converted back into beverage cans or a small recycler who is recovering precious metals from circuit boards or catalytic converters.

    By Granutech-Saturn Systems based in Grand Prairie, TEXAS (USA).

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    Waste recovery for metal refining

    Metal refining is increasingly seen as an essential part of natural resource conservation As sources of primary metals become scarcer or harder to excavate, the only viable solution is to extract and recycle secondary source of material already in circulation in a number of mass produced consumer products across the globe. The challenge is finding a technology that can efficiently recover these valuable metals from their less valuable materials. Tetronics can assist with a range of metal refining challenges, including:

    By Tetronics (International) Limited based in Swindon, UNITED KINGDOM.

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    Recycling equipments for electronic waste recycling (WEEE)

    The content of WEEE (electrical and electronic waste) gives recyclers various initiatives for recycling. It contains hazardous substances, such as lead, mercury or certain flame retardants, as well as precious metals like gold and silver. In 2012 approx. 64,900.000 ton electronic goods where produced and 49.000.000 ton electrical and electronic waste (WEEE) was generated. As the amount of sold electronic goods rise, the amount of WEEE rises. It is vital that this waste is taken care of properly.

    By Eldan Recycling A/S based in Faaborg, DENMARK.

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    Mining & minerals solutions for precious metals industry

    WesTech designs and manufactures a full range of thickeners for the minerals industry for product concentration, tailings disposal and CCD circuit washing, including HiFlo Thickeners, AltaFlo Thickeners, and Deep Bed Paste Thickeners. Design-build and turnkey projects are our specialty. Our reputation for excellence has been built one project at a time. Stateside and worldwide, WesTech provides a wide range of process equipment to help maximize the value of your resources.

    By WesTech Engineering, Inc. based in Salt Lake City, UTAH (USA).

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    Corrosion-resistant Materials for the Mining Industry

    Sauereisen polymer concrete is a heavy-duty castable used in the mining and precious metals refining industries. These products provide impressive physical strength, abrasion resistance and very low permeability. Polymer concrete can be an economical alternative to brick when project conditions call for a long-lasting system that is easy to install.

    By Sauereisen Inc. based in Pittsburgh, PENNSYLVANIA (USA).

  • Landfill lining

    GCLs have become the gold standard clay component of composite lining systems used in industrial, hazardous and municipal solid waste landfills. Used alone or in combination with a geomembrane in a composite cover system, GCLs provide significantly lower permeability, improved ease of installation, an increased amount of usable space. In many cases GCLs are more cost-effective than traditional compacted clay liners. GCLs are also not subject to deterioration from differential settlement and freeze-thaw cycles, which can damage traditional compacted clay liners. Important design considerations for GCLs in landfill caps include confining pressure, and potential for ion exchange and desiccation.

    By CETCO based in Hoffman Estates, ILLINOIS (USA).

  • Wastewater Treatment & Filtration

    4. Metallurgy: Lead Pb, copper Cu, zinc Zn, tin Sn, manganese Mn, nickel Ni refinement Refinement of various non-ferrous metals Precious metal refinement (Ag, Au, Pt, Pd) Liquid electroplating waste "Washer water" from blast furnaces

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    Scrap metal shredding

    Shredding of metals for volume reduction can simplify material handling, minimize storage space and reduce transportation and disposal costs. SSI has built shredders to process light scrap in a metal recycling yard, or materials generated by a manufacturer, such as aluminum extrusion from a door or window manufacturer. SSI shredders have also been used to prepare metals to feed into high-speed hammermills.

    By SSI Shredding Systems, Inc. based in Wilsonville, OREGON (USA).

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