PRETREATMENT METHOD OF BRUCITE FOR CO2 MINERAL CARBONATION

PRETREATMENT METHOD OF BRUCITE FOR CO2 MINERAL CARBONATION

A pre-treatment method of brucite for CO2 mineral carbonation is provided to effectively react unreacted brucite containing magnesium hydroxide with CO2 then generate carbonate by removing adsorbed water moiety, hydroxyl group and other volatile material in the brucite through the thermal treatment....

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: KIM, DONG WHA, KONG, KI HOON, LEE, SEUNG MIN, CHOI, WEON KYUNG, MOON, SEUNG HYUN, CHO, TAE HWAN, HAN, SANG SIK, LEE, JAE KEUN
Format: Patent
Sprache:eng
Schlagworte:
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
LIME, MAGNESIA
METALLURGY
REFRACTORIES
SLAG
TREATMENT OF NATURAL STONE
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:A pre-treatment method of brucite for CO2 mineral carbonation is provided to effectively react unreacted brucite containing magnesium hydroxide with CO2 then generate carbonate by removing adsorbed water moiety, hydroxyl group and other volatile material in the brucite through the thermal treatment. The pre-treatment method includes steps of crushing brucite into granules with particle size of less than 125 micrometers possible to be heat treated(S10); homogeneously distributing the crushed granules to become thickness of less than 3cm(S20); and heat treating the processed granules at 400 to 1200deg.C for 10 minutes or more(S30). The pre-treatment method is carried out under atmosphere or a condition of introducing oxygen. As a result, various materials such as adsorbed water moiety, hydroxyl group and other volatile materials are removed from the unreacted brucite(Mg(OH)2).