Beneficiation of flake graphite
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United States of America Patent
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May 21, 1996
Issued Date -
N/A
app pub date -
Apr 6, 1995
filing date -
Aug 3, 1993
priority date (Note) -
Expired
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Abstract
This invention concerns a method of beneficiating graphite to a higher purity level by dislodging the impurities from graphite by attrition preferably in an attrition cell which has at least one set of opposing pitched impellers. A pulp is formed preferably essentially consisting of a flake graphite:attrition adjuvant:water in a ratio of 1:2:0.8 to 10 and this pulp subjected to attrition in an attrition cell.
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