Fray Symposium - Carbstone: Valorisation Technology For Fine Grained Mineral Slags And CO2
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2011-Sustainable Industrial Processing Summit
SIPS2011 Volume 4: Materials Recycling, Silicon Photovoltaic Cells, Boron & Borates

Editors:Florian K
Publisher:Flogen Star OUTREACH
Publication Year:2012
Pages:754 pages
ISBN:978-0-9879917-3-7
ISSN:2291-1227 (Metals and Materials Processing in a Clean Environment Series)

    Carbstone: Valorisation Technology For Fine Grained Mineral Slags And CO2

    Mieke Quaghebeur1; Ben Laenen1; Peter Nielsen1; Evelyne Nguyen2; Dirk Van Mechelen2;
    1VITO, Mol, Belgium; 2RECMIX BELGIUM BVBA, Genk, Belgium;
    Type of Paper: Regular
    Id Paper: 320
    Topic: 12

    Abstract:

    A technology was developed to produce high strength building materials by treating slags with CO2 at elevated pressure (20 bar) and temperature (140°C) without addition of binders. The carbonated materials can compete with concrete products (C35/C45) and have excellent environmental and technical properties. The materials have the additional advantage of sequestering 180-200 g CO2/kg slag. The process makes use of a unique combination of existing technologies commonly used in the construction industry. Building of a pilot installation for treatment of 10.000 ton of slag per year is planned for the near future.

    Keywords:

    Carbonation, slag, CO2, recycling

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    Cite this article as:

    Quaghebeur M, Laenen B, Nielsen P, Nguyen E, Van Mechelen D. Carbstone: Valorisation Technology For Fine Grained Mineral Slags And CO2. In: Florian K, editors. Sustainable Industrial Processing Summit SIPS2011 Volume 4: Materials Recycling, Silicon Photovoltaic Cells, Boron & Borates. Volume 4. Montreal(Canada): FLOGEN Star Outreach;2012. p..