About AOS

Who we are

Innovation, quality and responsibility: that is what AOS stands for. In Stade, we refine bauxite into high-grade alumina and aluminium hydroxide for customers all over the world. Our modern, environmentally conscious production processes and our dedicated workforce ensure that every product meets the highest standards.

Facts & Figures

55

hectare
site

544

employees
including 65 apprentices

19

years’ average length of service

1,05

million tonnes of alumina produced every year

24/7

production
since 1973

How the process works

Production of aluminium hydroxide and alumina using the Bayer process

Enlarge

Product applications

Product Applications

Our products are part of your everyday life, often without you even noticing.

Alumina – SO143

Metals industry
• Primary aluminium production

Ceramics industry
• Tile manufacturing and as a glaze component

Refractories industry
• Production of refractory fibres

Abrasives
• Fused alumina (corundum) industry, grinding and polishing agents (pastes, discs and grit)

Glass industry
• To increase the strength of glass (high proportion)

Further processing
• Calcination of SO143 at up to 1,400 °C, followed by grinding or screening where required, for use in the ceramics industry

Aluminium hydroxide, wet – SH10

Water treatment
• Aluminium sulfate
• Polyaluminium chloride (PAC) as a flocculant in water treatment

Aluminium salts
• Aluminium fluoride for the production of aluminium metal
• Aluminium chloride for speciality chemicals
• Sodium aluminate as a setting accelerator for concrete in the construction industry

Zeolite industry
• Production of zeolites (additives in detergents and fertilisers)

Further processing

Aluminium hydroxide, dry – SH20

Flame retardants
• Flame-retardant filler

Titanium dioxide
• UV stabilisation, surface treatment of TiO₂ crystals

Molecular sieves
• Production of molecular sieves

Catalyst carriers
• Catalyst carriers for crude oil processing in the petrochemical industry

Glass industry
• To increase the hardness of glass (high proportion)

Further processing
• Grinding of SH20 to a finer particle size distribution for use as a flame retardant and as an additive in various products

Our Management

Strong and reliable leadership.
Contact: info@aos-stade.de

Works Council

Standing together for strong representation!
Contact: betriebsrat@aos-stade.de
Please note that this email address is not confidential. Our Works Council will be happy to get back to you personally.

Hartmut Borchers

Technical Managing Director

Dr Irene Pötting

Commercial Managing Director

Oliver Elsen

Chair of the Works Council

Become part of our team