Preparation method of sintering body with principal crystalline phase of cordierite by using coal gangue and nickel slag

The invention discloses a preparation method of a sintering body with a principal crystalline phase of cordierite by using coal gangue and nickel slag. The method is characterized by comprising the following steps: evenly mixing coal gangue and nickel slag subjected to ball milling and sieving, addi...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	XU HAIYAN, SUN DAOSHENG, WANG AIGUO, LIU KAIWEI, LI PING, LI YAN, SANG DI
Format:	Patent
Sprache:	chi ; 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:	The invention discloses a preparation method of a sintering body with a principal crystalline phase of cordierite by using coal gangue and nickel slag. The method is characterized by comprising the following steps: evenly mixing coal gangue and nickel slag subjected to ball milling and sieving, adding water to form a Bingham slurry, molding, drying, and calcining the mixture in a high temperature furnace. SiO2 and Al2O3 produced from decomposition of the main mineral composition kaolinite in coal gangue and MgO produced from decomposition of the main mineral composition forsterite in nickel slag at certain temperature are subjected to physical-chemical reaction at more than 1200 DEG C to generate a cordierite phase, so as to prepare the sintering body with principal crystalline phase of cordierite. At the same time, the other impurity mineral components in coal gangue can play a role of fluxing action in the sintering process to reduce the sintering temperature.