Alumina recycled materials

LKAB Minerals offer a portfolio of magnesia based recycled refractory materials, sourced and processed at our own sites in the UK and Netherlands.

The process of recycling refractory materials involves sorting to remove contamination either at the site of origin or at one of our own sites before being primary crushed and dried. Material is then processed to individual customer specifications. Chemical analysis is carried out on at each stage of the process to ensure consistency.

LKAB Minerals offer a range of alumina recycled refractory materials

Alumina recycled materials  processing services

LKAB Minerals offer a service of layering, blending and mixing raw materials to specific customer recipes. Additionally, LKAB Minerals offer a facility of processing customer owned material to specific requirements. Read more about LKAB Minerals services for toll processing here.

Alumina recycled material uses


Our range of alumina recycled materials are used in a number of applications including as a full or partial replacement to virgin materials in monolithic and shaped refractories. Our recycled materials are a cost efficient alternative to virgin materials.

High Friction Surfacing

Our Alumina based recycled materials can be used in low traffic area high friction surfacing applications. Read more about this specific topic here.

Metallurgical additives

Our Alumina based recycled refractory materials are suitable as additives for slag conditioning applications. Additionally, the slag conditioning mix can be processed at our own toll manufacturing site.

 LKAB Minerals range of recycled materials are suitable for slag conditioning applications

Alumina recycled materials properties

The typical chemical composition of LKAB Minerals range of alumina recycled materials is shown below:

Chemical properties                   Al2O3     MgO     SiO2     Fe2O3

Alumina 95 97.6 0.5 0.3 0.3
Alumina 90 92.8 1.3 2.0 1.1
Alumina 65 71.5  0.4  21.5  1.9 
Alumina 60 AND 61.0 0.3 35.3 1.4
Alumina 55 57.2 0.5 37.6 1.2
Alumina 48 51.0 0.5 44.0 1.3
Alumina 45 48.1 0.2 43.3 1.3
Alumina 40K 42.8 0.6 49.7 2.2
Alumina 40 41.5 0.8 50.5 2.8
Cordierite 36.0 2.7 56.5 1.5
Alumina Carbon 80 82.8 0.2 10.3 1.3
Alumina Carbon 75 70.6 0.2 14.9 1.1
Alumina Carbon 65 71.9 15.4 2.3 0.6

To find out more about our range of materials, please contact us by searching for your local representative in the contact box above. Or to view our range of Magnesia recycled materials, click here.

Alumina recycled materials standard grades

LKAB Minerals range of recycled materials are available in the following grades as standard:

5-8mm (-8+5mm)
3-5mm (-5+3mm)
1-3mm (-3+1mm)
0-5mm (-1mm)
0-250μm (-60#)
0-150μm (-100#)
0-15μm (-200#)

Other grades are available on request.

Alumina recycled materials packaging

Our recycled materials are available in 25kg paper sacks, 1000kg bulk bags or as bulk as standard.

Alumina recycled materials origins

LKAB Minerals recycled materials originate predominantly from steel and cement works. Material is recovered and sorted either at the site of origin or at one of our processing sites.

Alumina recycled materials toxicology

A non-toxic, non-hazardous stable mineral. You can download the Safety Data Sheet in the section on the right hand side for further information.

Please contact us for datasheets on a single grade or further information on our recycled refractory material product range. You can find our sales contact by choosing your country in the upper right expert box of this page.

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Product expert

Vicky Yates
Sales Manager, Refractory Minerals & Olivine

Ask me a question. Contact information.