Zinc dross is recognized as a versatile material. It is a solid waste product specifically a zinc sediment that comes in various types, each with distinct characteristics. Its market price varies depending on the material’s purity level and weight.
Understanding Zinc Dross Price Based on Type and Use
Zinc dross is a solid waste material that forms a layer floating on the surface of molten metal. It serves various purposes and is generated as a byproduct of the hot-dip galvanizing process used to apply anti rust coatings to iron or steel. Because zinc dross price vary, zinc dross prices typically identify the specific type and intended use before purchasing.
In the metal industry, the selling price generally tracks global zinc commodity price fluctuations, specifically those on the London Metal Exchange (LME). This solid waste from the galvanizing process is usually categorized based on its zinc metal purity level.
Types Based on Selling Price
Zinc dross is a solid waste (metal crust) composed of an intermetallic mixture of iron-zinc and zinc oxide. It boasts a high zinc metal content ranging from 90% to 95% which gives it significant resale value for recycling. Common types include:
- High Grade Dross
Has a purity level of 90% to 95%. It originates from the bottom layer (sediment) of the galvanizing bath, appearing as solid clumps of residue. Its selling price varies according to metal market fluctuations.
- Mixed Dross
Has a purity level of 70% to 89% and contains a higher proportion of crust and mixed impurities/residues, typically from factory production processes. Its selling price varies based on weight.
- Low-Grade Dross Powder
Although it is a mixture, this type is characterized by a fine, ash-like powder form—specifically the result of surface zinc oxidation. It has a purity level of 70%. Selling prices vary depending on the weight purchased by each buyer.
The selling price of dross depends on the percentage of zinc purity it contains. Furthermore, prices vary across international markets and the scrap metal processing industry. These zinc dross price are determined by the material’s physical form whether solid or powdered as well as its specific type, purity level, and weight.