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Recovering Value from Metal-Bearing Sludges
Industrial hydroxide sludges and filter cakes can contain valuable recoverable metals, including nickel, cobalt, copper, zinc, vanadium, and molybdenum. Oryx Metals specializes in sourcing and evaluating these complex industrial residues for metal
FORMS WE BUY
Metal-bearing sludges we buy
Metal hydroxide sludge
Industrial residues with Ni, Co, Cu, Sn, Mo, V, Zn, Pb, W
Carbide grinding sludge
Tungsten carbide sludge from tool grinding
Tungsten sludge
Tungsten and heavy alloy grinding sludge
Nickel and cobalt sludge
Process sludges from alloy and battery production
Polishing and lapping sludge
Sludge from optics, wafers and precision parts
Precious metal sludge
Plating and refining sludges with Au, Ag or PGMs
HOW minor metals are PRICED
Oryx Metals makes scrap recycling easy and profitable
Highest value
Clean, high-purity solids
Uncontaminated pieces, offcuts, ingots and production rejects
Mid-Range
Coated or alloyed scrap
Coated parts, alloys, turnings and mixed solids
Priced on content
Powders, sludges & residues
Value depends on metal %, contamination and moisture
Get pricing for your metal
A photo and an analysis is all we need to start. A metals specialist replies within 24 hours.
01
Send us the material
02
we evaluate it
03
you receive an offer
04
we handle the execution
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Turbine Parts for Mutilation
Tungsten Recycling
Germanium Recycling
Gallium Recycling
Indium Recycling
Hafnium Recycling
Rhenium Recycling
Tantalum Recycling
Niobium Recycling
Tin Recycling
Molybdenum Recycling
Vanadium Recycling
Zirconium Recycling
Tungsten Carbide Scrap
Nickel Alloys
Cobalt Alloys
Titanium Alloys
High Speed Steel
Jet Engine & Turbine Blade Scrap
Rare Earth & Magnet Scrap
Battery Black Mass
Tungsten Catalyst
Molybdenum Catalyst
Copper Catalyst
Vanadium Catalyst
Mixed-Metal Catalyst
Precious Metal (PGM) Catalyst
Gold (Au)
Silver (Ag)
Platinum (Pt)
Palladium (Pd)
Rhodium (Rh)
Iridium (Ir)
Ruthenium (Ru)
Metal-Bearing Sludges
Mixed Metal Residues
Filter Cakes
Sweeps
Dusts
Fines
Slags
Tantalum & Niobium (ores)
Tungsten (ores)
Tin (ores)
Titanium (ores)
Rare Earth (ores)
MATERIAL WE’ve BOUGHT
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FAQs
Metal hydroxide sludge and grinding sludge recycling FAQ
What metal-bearing sludge do you buy?
Metal hydroxide sludge from plating, finishing and wastewater plants containing nickel, copper, tin, cobalt or chromium, tungsten carbide and tungsten grinding sludge, nickel and cobalt process sludges, polishing and lapping sludge from optics and wafers, and precious metal sludges.
How do I know if my sludge is worth recycling?
It depends on which metals it contains and at what level on a dry basis. A lab analysis on a dried sample is the first step. Many sellers are surprised to find their sludge can be sold rather than paid for. Send the analysis and the annual volume.
How is carbide sludge recycling priced?
On the dry tungsten and cobalt content, minus moisture, oil, coolant and abrasive from the grinding wheel. Carbide sludge with low abrasive content earns better terms. Oryx makes each offer from your analysis.
Does sludge need to be dried before shipping?
Not always, but water is weight you pay to ship and it is deducted from the value. Filter-pressing or drying usually improves the net return. Some sludges are classed as hazardous waste and need permits, which we arrange with you.
Can we set up a regular outlet for our plant’s sludge?
Yes. Most sludge sellers produce a steady volume. We agree an analysis routine, pricing formula and collection schedule, so the sludge leaves site regularly without a new negotiation each time.
What does Oryx Metals do differently with sludge?
Most sludge goes to a waste contractor by default. Oryx Metals looks first at the metal content, finds a refiner that can recover it and turns a disposal cost into a payment wherever the chemistry allows, including grinding sludge recycling for tool makers.
