FIELD: process engineering.
SUBSTANCE: invention relates to separation of liquid mixes and can be used in agriculture and various industrial branches. Proposed method comprises developing fractional pressure gradient by two target component-selective membranes with gas gap there between. Note here that first membrane surface has temperature higher than that of second membrane. Mass transfer of feed solution component vapours is carried out so that target component flow through second membrane exceeds that through first membrane. Invention covers also device to implement above described method.
EFFECT: mass transfer from feed solution into enriching solution at difference of temperatures between said solution making no more than 20-30°C.
4 cl, 2 ex, 1 tbl, 2 dwg
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