Separation and recovery of solids from liquids containing them using the ionic flotation process
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United States of America Patent
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Jul 4, 1989
Grant Date -
N/A
app pub date -
Jul 22, 1986
filing date -
Nov 30, 1984
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Improvement to the separation and recovery of solids from liqiuds containing them, and using a ionic flotation process, implementing an installation characterized in that it comprises at least a vat (1) for pretreating the solution to be treated for the insolubilization of the solid to be recovered and the formation of a suspension maintained under stirring conditions (stirrer 2), at least a flotation cell (5) supplied with said suspension, at least a device (4) provided between said vat (1) and said flotation cell (5) adapted to generate within the cell a rising non-turbulent stream intended to convey the desired solid towards the surface of said suspension while maintaining at said surface a calm area for the accumulation of said solid and at least one means for the recovery of said solid (6-7).
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