Lithium metatungstate
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United States of America Patent
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Jan 12, 1993
Grant Date -
N/A
app pub date -
Jun 25, 1991
filing date -
Jun 25, 1991
priority date (Note) -
Expired
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Abstract
Lithium metatungstate as a new composition of matter and the production thereof are disclosed. A solution of lithium monotungstate is treated with an extractant to remove sufficient lithium ions to produce a dilute solution of lithium metatungstate and the dilute solution is then concentrated. Lithium metatungstate solutions are more dense than other alkali metal metatungstates and have lower viscosities which properties make the solutions highly useful for heavy media separations.
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