Lightweight magnesia clinker and process for the preparation of the same
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United States of America Patent
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-
May 22, 1990
Grant Date -
N/A
app pub date -
Jun 15, 1988
filing date -
Jun 15, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A lightweight magnesia clinker containing magnesium oxide in an amount of more than 85 wt. % and having an apparent porosity of more than 40 vol. % and a bulk specific gravity of less than 2.0 g/cm.sup.3 is disclosed. In the lightweight magnesia clinker, the amount of magnesia clinker particles having a particle diameter of smaller than 3 mm is more than 90 wt. % of the amount of all magnesia clinker particles, and the amount of pores formed in the magnesia clicker particles having a pore size of smaller than 50 .mu.m is more than 90 vol. % of the amount of all pores. A process for the preparation of said lightweight magnesia clinker is also disclosed.
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