Description

Zinc, Desilverizing Skims is a specialized intermediate material derived from the Parkes process for lead refining, where zinc is used to extract precious metals like silver. This product matters as a critical, cost-effective source of secondary zinc and trace precious metal values for specialized metallurgical recycling and refining operations. It is primarily needed by non-ferrous metal smelters, precious metal refiners, and chemical manufacturers engaged in resource recovery and the production of zinc-based chemicals.

Application

• Precious Metal Recovery: As a primary feedstock for the recovery of residual silver, gold, and other precious metals through further refining processes.
• Zinc Reclamation: Serving as a source of secondary zinc for the production of zinc alloys, zinc dust, or zinc chemicals after purification.
• Lead Refining By-Product Processing: A key intermediate in the integrated processing chain of lead smelters utilizing the Parkes desilverization method.
• Specialty Metallurgy: Used in controlled alloy production where specific trace element compositions are required.
• Chemical Synthesis: As a raw material for producing certain zinc salts or compounds after appropriate treatment and purification.

Basic Information

Product Name	Zinc, Desilverizing Skims
CAS No.	69029-60-3
Molecular Formula	Primarily Zn with Ag, Pb, other metals
Molecular Weight	N/A (Complex Metallic Mixture)
Synonyms	Desilverizing Zinc Skims; Parkes Process Skimmings; Zinc-Silver Crust; Zinc Desilverization Dross; Lead Refining By-Product; Zinc Skim; Ag-Zn-Pb Alloy Skim; Precious Metal Bearing Zinc Skim
EINECS	Contact for details

Quality Control

Our Zinc, Desilverizing Skims is produced and handled under strict process controls to ensure batch-to-batch consistency in composition. While specifications vary based on the source lead bullion, we provide detailed lot-specific Certificates of Analysis (COA) that typically report key parameters such as zinc content, precious metal assay (Ag, Au), and major impurities (Pb, Cu, As). Our quality commitment aligns with the rigorous material tracking standards of the non-ferrous metallurgy industry.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials. This material is easily oxidized (store under inert atmosphere for long-term storage if high zinc reactivity is a concern). Keep containers sealed when not in use to minimize exposure to air and moisture.

Specification

Item	Specification
Appearance	Metallic skim, crust, or granulated form
Zinc (Zn) Content	Contact for details
Silver (Ag) Content	Contact for details
Lead (Pb) Content	Contact for details
Other Metals (Cu, As, etc.)	Contact for details
Assay (Metals)	By ICP-OES / AAS

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.