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Distilling large quantities of acetone for reuse

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curiouscat:

--- Quote from: Enthalpy on August 29, 2013, 06:03:23 PM ---how to move the product in the column (superimposed trays?


--- End quote ---

Minor details? :)

Enthalpy:

--- Quote from: curiouscat on August 30, 2013, 12:02:03 AM ---
--- Quote from: Enthalpy on August 29, 2013, 06:03:23 PM ---how to move the product in the column (superimposed trays?
--- End quote ---

Minor details? :)
--- End quote ---

 ;D Mechanical engineers too will have the right to contribute their creative work...

Trays carrying the product could have slides that hold them to an other, or they could hang to chains running at the sides of the column. Trays are then introduced at the bottom with the product to be dessicated and removed at the top with the dry product.

A dessicant more difficult to boil than water would ease this point. Glycerine or polyols fit this criterion, but are viscous (possibly a general difficulty) and hard to separate from water. I suppose acetone has definite advantages.

Enthalpy:
Maybe reverse osmosis can remove moisture from the many fluid compounds chemists want dry.

The overpressure is higher than usual, to leave permil or ppm moisture rather than a brine when desalinating seawater. The osmosis elements may need an adapted mechanical design.

At a company producing ultra-dry compounds, the adaptation could be worth it.

Marc Schaefer, aka Enthalpy

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