Liquid-vapour contact columns

B - Operations – Transporting – 01 – D

Patent

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B01D 53/18 (2006.01) B01J 19/32 (2006.01) C23C 4/04 (2006.01) F28F 25/08 (2006.01)

Patent

CA 1315670

ABSTRACT LIQUID-VAPOR CONTACT COLUMNS A packing for a liquid-vapor contact column is provided which comprises metallic sheets defining liquid-vapor passages and having at least one wettable surface comprised of a coating of porous metal. The sheets are perforated to permit vapor to pass between them. The porous metal coating is formed by spraying a particulate mixture of metal and a plastics material onto the sheet to form a coating of plastics particles embedded in metal and then heating to volatilize the plastic thereby forming porosity in the metal coating.

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