FIELD: chemical industry.
SUBSTANCE: for the production of a concentrated solution of ammonium metavolphramate (hereinafter – AMV), an aqueous AMV solution is directed through at least one reverse-osmosis cell to obtain concentrate and permeate. Reverse osmosis is carried out in the high-pressure reverse-osmosis cell at pressure of more than 90 bar, the method is carried out continuously. The use of a high-pressure reverse-osmosis cell and a device for the production of a concentrated AMV solution are also proposed.
EFFECT: inventions allow for reduction in energy consumption, when concentrating AMV.
14 cl, 1 dwg, 1 ex
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