Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Lead-zinc tailing-red mud-flyash-based foamed ceramic and preparation method thereof
The invention discloses lead-zinc ore tailing-red mud-flyash-based foamed ceramic and a preparation method of the lead-zinc tailing-red mud-flyash-based foamed ceramic. The foamed ceramic is formed by conducting blank forming and sintering on principal raw materials such as lead-zinc tailings, red mud, fly ash and sintering additives. Preparation processes are simple, reaction conditions are mild, the raw materials are low in cost, and the prepared foamed ceramic takes Na6Ca2Al6Si6O24(SO4)2 as a principal crystalline phase and includes Fe2O3, little CaSO4, Fe3O4, a SiO2 phase and a glass phase. The foamed ceramic has the advantages of being light, high in strength, soundproof, capable of keeping warm, fireproof, free from secondary pollution and the like; specifically, the porosity of the foamed ceramic is as high as 62.2%-78.5%, the density of the foamed ceramic ranges from 0.42 g*cm<-3> to 0.81 g*cm<-3>, the compressive strength of the foamed ceramic ranges from 4.8 MPa to 8.4 MPa, and the acid and alkali resistance of the foamed ceramic is higher than 98%.
Lead-zinc tailing-red mud-flyash-based foamed ceramic and preparation method thereof
The invention discloses lead-zinc ore tailing-red mud-flyash-based foamed ceramic and a preparation method of the lead-zinc tailing-red mud-flyash-based foamed ceramic. The foamed ceramic is formed by conducting blank forming and sintering on principal raw materials such as lead-zinc tailings, red mud, fly ash and sintering additives. Preparation processes are simple, reaction conditions are mild, the raw materials are low in cost, and the prepared foamed ceramic takes Na6Ca2Al6Si6O24(SO4)2 as a principal crystalline phase and includes Fe2O3, little CaSO4, Fe3O4, a SiO2 phase and a glass phase. The foamed ceramic has the advantages of being light, high in strength, soundproof, capable of keeping warm, fireproof, free from secondary pollution and the like; specifically, the porosity of the foamed ceramic is as high as 62.2%-78.5%, the density of the foamed ceramic ranges from 0.42 g*cm<-3> to 0.81 g*cm<-3>, the compressive strength of the foamed ceramic ranges from 4.8 MPa to 8.4 MPa, and the acid and alkali resistance of the foamed ceramic is higher than 98%.
Lead-zinc tailing-red mud-flyash-based foamed ceramic and preparation method thereof
LU ANXIAN (Autor:in) / LIU TAOYONG (Autor:in) / LIU HONGWEI (Autor:in) / LI XIUYING (Autor:in) / HU XIAOLIN (Autor:in) / LIU PIAO (Autor:in) / ZHANG QIAN (Autor:in) / SONG JUN (Autor:in)
22.04.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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