High swelling ramming paste for aluminum electrolysis cell

Details High swelling ramming paste for aluminum electrolysis cell High swelling ramming paste for aluminum electrolysis cell

2007-03-06

2007-03-06

Kopec, Mark (Department: 1751)

Compositions

Electrically conductive or emissive compositions

Elemental carbon containing

C106S038250, C106S278000, C106S284050, C204S294000, C264S105000, C208S006000, C427S122000, C427S113000

Reexamination Certificate

active

10387020

ABSTRACT:
A new ramming paste for aluminum reduction cell cathodes is a high swelling cold ramming paste made of a blend of pitch, light oil diluent and an aggregate comprising a mixture of anthracite and crushed anode butts or calcined coke. The presence of the crushed anode butts or calcined coke increases the sodium swelling index of the paste by about four times higher than that of regular ramming pastes. This new high swelling cold ramming paste may also contain an amount of a refractory hard material, such as TiB2.

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