Energy saving technology for sintering of black bricks from high-siliceous clay
Por:
Flores Nicolas, Mario, Vlasova, Marina, Marquez Aguilar, Pedro Antonio, Kakazey, Mykola, Chavez Cano, Marcos Mauricio, Arroyo Matus, Roberto, Pi Puig, Teresa
Publicada:
1 ene 2020
Resumen:
The low-temperature synthesis of bricks prepared from high-siliceous
clays by the method of plastic molding of blanks was used. For the
preparation of brick blanks, binary and ternary mixtures of
high-siliceous clays, black sand, and bottle glass cullet were used.
Gray-black low-porosity and high-porosity ceramics was obtained by
sintering under conditions of oxygen deficiency. It has been established
that to initiate plastic in mixtures containing high-siliceous clay, it
is necessary to add montmorillonite/bentonite additives, carry out
low-temperature sintering, and introduce low-melting glass additives
with a melting point ranging from 750 to 800 degrees C. The performed
investigations have shown that the sintering of mixtures with a total
content of iron oxide of about 5 wt% under reducing conditions at
T-sint. = 800 degrees C for 8 h leads to the formation of glass ceramics
consisting of quartz, feldspars, and a phase. The main sources of the
appearance of a dark color is the formation of [Fe3+O4](4-) and
[Fe3+O6](9-) anions in the composition of the glass phase and
feldspars. By changing the contents of clay, sand, and glass in
sintering, it is possible to obtain two types of ceramic materials: (a)
in the form of building bricks and (b) in the form of porous fillers.
Filiaciones:
Flores Nicolas, Mario:
Univ Autonoma Estado Morelos CIICAp UAEMor, Ctr Invest Ingn & Ciencias Aplicadas, Ave Univ 1001, Cuernavaca 62209, Morelos, Mexico
Vlasova, Marina:
Univ Autonoma Estado Morelos CIICAp UAEMor, Ctr Invest Ingn & Ciencias Aplicadas, Ave Univ 1001, Cuernavaca 62209, Morelos, Mexico
Marquez Aguilar, Pedro Antonio:
Univ Autonoma Estado Morelos CIICAp UAEMor, Ctr Invest Ingn & Ciencias Aplicadas, Ave Univ 1001, Cuernavaca 62209, Morelos, Mexico
Kakazey, Mykola:
Univ Autonoma Estado Morelos CIICAp UAEMor, Ctr Invest Ingn & Ciencias Aplicadas, Ave Univ 1001, Cuernavaca 62209, Morelos, Mexico
Chavez Cano, Marcos Mauricio:
Univ Nacl Autonoma Mexico, Inst Ingn, Circuito Escolar S-N,Ciudad Univ,Calzada Coyoacan, Mexico City 04510, DF, Mexico
Arroyo Matus, Roberto:
Univ Autonoma Guerrero UAGRo, Unidad Acad Ingn, Ave Lazaro Cardenas S-N Ciudad Univ, Chilpancingo 39000, Guerrero, Mexico
Pi Puig, Teresa:
Univ Nacl Autonoma Mexico, Inst Geol, Circuito Invest Cient, Mexico City 02376, DF, Mexico
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