Method for manufacturing refractory oxide-carbon bricks
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United States of America Patent
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Jun 18, 1991
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N/A
app pub date -
May 9, 1988
filing date -
May 7, 1987
priority date (Note) -
Expired
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Abstract
A method for the manufacture of refractory, bricks that are resistant to molten iron and slag. The bricks are made of refractory oxides and/or the corresponding hydroxides and carbon by mixing fine-particle refractory oxides and/or the corresponding hydroxides with pitch to form a homogeneous green mixture, heating the green mixture in the presence of carbon to form a solid thermally stable sintered product of oxide and carbon, reducing the sintered product into smaller size particles, binding the reduced sintered particles with a mixture of refractory oxide and/or corresponding hydroxide and pitch, compacting the thus obtained substance into a green molded article, and firing the green molded article in a reducing atmosphere to form refractory bricks.
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