The utility model discloses a
potassium phytate production device, and relates to the technical field of
potassium phytate production, an inlet of a reaction kettle is respectively communicated with a
calcium phytate tank, a deionized water tank, a
potassium carbonate solution tank and a diluted
hydrochloric acid solution tank, an outlet of the reaction kettle is communicated with a first centrifugal
machine, and a
liquid phase outlet of the first centrifugal
machine is communicated with a
mother liquor recovery tank; an outlet of the
mother liquor recovery tank is communicated with a plate-and-frame
filter press, an outlet of the plate-and-frame
filter press is communicated with a concentration tank, an outlet of the concentration tank is communicated with a crystallizing tank, an outlet of the crystallizing tank is communicated with a second centrifugal
machine, and a
solid-phase outlet of the second centrifugal machine is communicated with a potassium phytate tank. The method comprises the following steps: carrying out double
decomposition reaction on
calcium phytate and dropwise added
potassium carbonate in a reaction kettle, adding diluted
hydrochloric acid to adjust the pH value to 10-11 to generate
calcium carbonate precipitate and a potassium phytate reaction solution, centrifuging, filtering, concentrating and crystallizing the potassium phytate reaction solution, and finally centrifuging to obtain a potassium phytate product. The potassium phytate is high in yield, higher in purity, low in cost and beneficial to industrial production.