To prepare a mixed solution containing an electrolyte and a nonelectrolyte in which lowering of concentration of the electrolytic solution is prevented simply at the time of preparing and also the lowering of the electrolyte concentration is eliminated from the initial stage of a plurality of preparations in a patch type mixing equipment.
Water is fed into a preparation tank 15 of a mixing equipment, and water is circulated from a piping 20 or the like and agitated, and an electrolytic chemical 101 of a dialyzate solution A agent is added continuously and mixed therein, and the electric conductivity of a water solution is measured by a conductivity meter 24 to prepare the electrolytic water solution of a given concentration. A glucose (nonelectrolyte) chemical 102 is added and mixed continuously while the electrolytic water solution is agitated, and the electric conductivity of the mixed water solution is measured, and a mixed water solution (A agent) containing an electrolyte and a nonelectrolyte of a given concentration is prepared, and then discharged. The above-referred series of processes are repeated a plurality of times. In the first preparation, before the electrolytic chemical 101 is added and mixed into water, glucose of the same volume as the volume of the glucose contained in a residual liquid remaining unavoidably in a mixing equipment 1 after the mixed water solution prepared by the preparation after the first preparation onwards is discharged is introduced.
SHIBATA TAKESHI
ZOKUMA YOSHIHIRO
SUZUKI HIROYUKI
NAKAMA TOSHIYUKI
CYTEC KK