Separation of liquid mixtures in a film evaporator

Details Separation of liquid mixtures in a film evaporator Separation of liquid mixtures in a film evaporator

2004-03-03

2008-08-19

Keys, Rosalynd (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

C568S679000, C568S699000

Reexamination Certificate

active

07414159

ABSTRACT:
A liquid mixture comprising at least one readily volatile and at least one sparingly volatile component is separated in a film evaporator by a process in which(i) a continuous stream of a liquid starting material mixture is provided,(ii) a liquid film is produced from the continuous stream and is brought into contact with a heat exchange surface of the Mm evaporator,(ii) the liquid film is partly evaporated, a gas stream enriched with the at least one readily volatile component and a liquid stream enriched with the at least one sparingly volatile component being obtained,wherein(iv) the heat exchange surface is coated with a catalytically active material which(v) catalyzes, in the liquid film, a chemical reaction in which at least one readily volatile component is formed.

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