Precious Metal Crucible Recycling

Precious metal crucibles are primarily used for precious metal refining. Graphite and ceramic crucibles serve for gold smelting in jewelry processing, with their recycling value coming from residual gold adhering to the crucible interior. Another type is iridium crucibles, which contain precious metal iridium and are used for platinum group metal purification, thus also containing platinum-series metals within the vessel. Iridium crucibles hold high recycling value, and DONGSHENG offers highly competitive precious metal crucible recycling prices.

Mainstream Precious Metal Crucible Brands

Morgan: Silicon carbide crucible Syncarb Z2, strong thermal shock resistance, suitable for copper/zinc/precious metal smelting.

Vesuvius: Duratek® S oxidation-resistant crucible, specialized for aluminum/zinc alloys.

Huaxia Furun: Seamless iridium crucible meeting high-precision aviation component requirements.

Jiangxi Zhongcai: Photovoltaic-grade quartz crucible compatible with monocrystalline silicon crystal pullers.

Baoji Yinggao: Porous titanium filter plates for indirect impurity filtration in smelting systems.

Key Parameters of Precious Metal Crucibles

Graphite crucible: 3000℃

Ceramic crucible: 1200–1600℃

Iridium crucible: 2450℃

Chemical stability:

Graphite/Zirconia: Inert, gold corrosion-resistant

Clay crucible: Low-temperature stable

Physical properties:

Thermal conductivity: Graphite ＞ Silicon carbide ＞ Ceramic

Lifespan: Graphite crucible (20+ uses), Ceramic (5+ uses), Iridium crucible (Permanent)