Cyanidation Silver Tailings
Tailings from silver cyanidation circuits with Merrill-Crowe precipitates recycled as concentrate. HTS 2616.10.00 silver recovery material. Contains 1-5% metallic silver cement.
Import Duty Rates by Country of Origin
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If silver cyanide compounds isolated
Purified metal cyanides classify under Chapter 28 chemicals.
If chemical processing waste
Prepared chemical residues from leaching operations.
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Import Tips & Compliance
• Detoxify cyanide to <50 ppm before export
• Wet tailings require drainage systems
• Precious metal precipitates increase declared value
Related Products under HTS 2616.10.00
Argentite Ore
Argentite (Ag2S) is a primary silver sulfide ore mined from hydrothermal veins, containing 87% silver by weight. It falls under HTS 2616.10.00 as a silver ore and concentrate used for precious metal extraction. The material is typically crushed and processed via flotation to recover silver concentrates.
Cerargyrite Silver Ore
Cerargyrite, or horn silver (AgCl), is a chloride silver ore found in oxidized zones of silver deposits with up to 75% silver content. Classified under HTS 2616.10.00 for silver ores and concentrates. It is crushed and leached for silver recovery in refining processes.
Native Silver Ore
Native silver ore consists of elemental silver grains embedded in gangue rock from epithermal deposits. It qualifies under HTS 2616.10.00 as unrefined silver-bearing material for concentrate production. Milled and gravity-separated to yield high-grade silver concentrates.
Proustite Silver Ore
Proustite (Ag3AsS3) is a silver sulfosalt ore from low-temperature veins, assaying around 60% silver. Falls under HTS 2616.10.00 as silver concentrate precursor. Flotation and roasting recover silver from arsenic-bearing matrix.
Chlorargyrite Concentrate
Flotation concentrate derived from chlorargyrite ore, enriched to 40-60% silver content for smelting. HTS 2616.10.00 covers such silver-bearing concentrates. Directly fed into cyanidation or smelting circuits.
Acantite Flotation Concentrate
Acantite (Ag2S) flotation concentrate from Mexican silver mines, grading 500-800 oz/ton silver. Classified HTS 2616.10.00 for silver concentrates. Shipped to custom smelters for matte production.