Capabilities

Electrolysis, by-product enrichment, thermal plant, and flotation

Four process families, specified in enough detail for a technical reading: electrolytic production and purification; by-product enrichment of EAF dust and non-ferrous slags; rotary melting, roasting, and drying furnaces; and complete flotation lines.

Electrolytic metal production

Production and purification by electrolysis

Three routes are offered. Each finishes by taking metal from the cathode — or, for precious metals recovered from secondary feeds, by casting ingots — at 99.9% purity.

Leach and electrowin

Metals are leached from soil into solution. Harmful metals are precipitated. Copper and zinc are then produced by electrolysis at 99.9% purity.

Scrap to anode to ingot

Waste scrap metals are melted and cast as an anode plate. Electrolysis extracts the valuable metals; pure metal is taken from the cathode, melted, and cast as ingots.

Electronic waste and recyclables

Electronic waste and recyclable products that contain precious metals are separated. After an anode is cast, gold, silver, platinum, palladium, and related metals are extracted and cast as ingots at 99.9% purity.

Row of electrowinning cells with submerged electrode plates and electrolyte overflow — Electrowinning tankhouse — electrolytic cells in operation.

By-product enrichment · EAF dust

EAF dust processing and zinc recovery

Electric arc furnace (EAF) dust is a zinc-bearing by-product of steelmaking, in which zinc is present mainly as zinc oxide and zinc ferrite. Atlantic Project’s route for this feed is flotation, then leaching, then zinc electrowinning.

Flotation

The dust is pre-treated by flotation ahead of leaching, separating unwanted fractions such as carbon from the zinc-bearing material.

Leaching

The prepared material is leached and zinc is taken into solution.

Solution purification

Impurities are removed before electrowinning. Typical practice includes cementation of lead, cadmium, and copper with zinc dust, and removal of chlorides and fluorides.

Electrowinning

Zinc is recovered as cathode metal by electrolysis, and can be melted and cast into ingots. This step draws on the company’s existing electrolysis capability, which targets 99.9% purity for zinc.

For funders: the route turns a steelmaking residue into recovered zinc metal — a circular recovery pathway consistent with the company’s existing scrap and electronic-waste recovery work.

Newly manufactured process cells on an assembly floor — Process cells on the assembly floor.

By-product enrichment · Non-ferrous slags

Copper, aluminium, and zinc slag enrichment

Slags, drosses, and skimmings from non-ferrous smelting and casting still carry recoverable metal. Atlantic Project applies the same equipment it builds for ore enrichment — crushing, grinding, flotation, rotary melting, and electrolysis — to bring that metal back into production.

Copper slag

The slag is crushed and ground to free the copper-bearing phases, then concentrated by flotation. The concentrate can be returned to smelting or taken through leaching and electrowinning to copper cathode.

Aluminium dross and slag

Dross and skimmings are crushed and screened to separate the metallic fraction, which is melted in a rotary furnace and cast as ingots. Chimney treatment uses the same cyclone and bag-filter hardware as the rest of the thermal range.

Zinc slag, ash, and dross

Zinc-bearing residues from galvanising and smelting are melted to recover metallic zinc, or leached, purified, and electrowon to zinc cathode, alongside the EAF dust route above.

Each by-product is different in composition. Routes are confirmed by laboratory testing of the client’s material before plant design; recovery rates are not published here.

Rotary melting furnace with burner unit and hydraulic rams — Rotary melting equipment used for metal recovery from drosses and slags.

Thermal equipment

Rotary melting, roasting, and drying furnaces

Fuels across the range are natural gas, LPG, and diesel. Filling, emptying, temperature, and chimney treatment are specified below as published by the company — not as a performance guarantee.

Rotary melting furnace
Application	Metal and ore melting
Fuel	Natural gas, LPG, diesel
Filling and emptying	Hydraulic lid, hydraulic lifting, hydraulic emptying
Internal insulation	95 alumina refractory concrete

Mining roasting furnace
Internal refractory	Alumina brick
Fuel	Natural gas, diesel, LPG
Temperature	600–900 °C
Operating mode	Continuous inlet and outlet
Chimney treatment	Cyclone and bag filter

Mining drying furnace
Internal refractory	Non-refractory
Fuel	Natural gas, diesel, LPG
Temperature	100–400 °C
Operating mode	Continuous inlet and outlet
Chimney treatment	Cyclone and bag filter

Rotary melting furnace on a green hydraulic frame, lid swung open — Rotary melting furnace — hydraulic frame and 95 alumina lining at the mouth.

Rotary dryer or roasting drum on a charcoal steel frame during workshop assembly — Rotary thermal drum during manufacture, with riding rings on a braced frame.

Rotary melting furnace with red burner unit and green hydraulic rams — Rotary melting furnace with burner assembly and hydraulic emptying gear.

Outdoor rotary dryer on an orange lattice frame beside a yellow discharge housing — Outdoor rotary dryer — continuous inlet and outlet on a concrete pad.

Mineral enrichment

Flotation cells and complete plants

The company manufactures flotation cells and installs complete flotation plants. Cells are supplied at 1.4 t and 2.8 t.

Minerals treated

Lead — galena and oxidised lead
Copper — chalcopyrite
Antimony
Zinc — sphalerite
Gold — pyritic gold

Plant machinery

Crushing and screening
Micronising grinding
Mixing tanks
Flotation cells
Press filter
Sludge pumps and waste ponds

Flotation line with teal cells, yellow railings, and collection hoppers — Flotation line — cells, walkway, and collection hoppers.

Blue rotary grinding mill with chain drive and electric motor — Micronising grinding mill during manufacture.