FIELD: machine building.
SUBSTANCE: device for mixed solution preparation containing mixing tank for preparation of the mixed water solution containing dicarboxylic acid and Nb compound, and filter for mixed water solution connected with mixing tank by means of a pipe. The mixing tank is corrosion-resisting and is equipped with mixing module, heating module and cooling module for mixed water solution. The mixed water solution prepared in the mixing tank is supplied to the specified filter via pipe and is filtered in the filter under high pressure.
EFFECT: improving device design.
15 cl, 1 dwg, 1 tbl
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