Process for producing aluminum hydroxide of improved whiteness
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United States of America Patent
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Apr 10, 1990
Issued Date -
N/A
app pub date -
Nov 23, 1988
filing date -
Jul 31, 1986
priority date (Note) -
Expired
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Abstract
A process for producing aluminum hydroxide including the steps of: (a) dissolving colorant-containing aluminum hydroxide for forming a solution; (b) treating the solution for collecting colorant into solid phase material; (c) separating the solid phase material from the solution; and (d) precipitating aluminum hydroxide of improved whiteness from the solution.
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