The invention discloses a preparation method of
fructose sodium diphosphate injection, which comprises the following steps: S1, dissolving
disodium hydrogen phosphate,
sodium dihydrogen
phosphate, glucose and
phosphoric acid in water to prepare a reaction liquid, mixing with beer
yeast, stirring and reacting to obtain a
raw material liquid containing
fructose sodium diphosphate; 2, filter that rawmaterial liquid plate frame; S3, adsorbing and purifying the
solid-liquid separated raw liquid in S2 by anionic resin to obtain resin extract containing
fructose sodium diphosphate; 4, decolorizing and filtering, decolorize that resin extract solution by
activated carbon, and filtering and decarburizing; 5, carrying out initial concentration on that decolorization filtrate in S4, washing and desalinate the decolorization filtrate with water, and finally pressurizing the decolorization filtrate to concentrate the
specific gravity of the decolorization filtrate to more than 1.05 g / ml; 6, filterthat concentrated
drug solution to obtain RO solution; 7, filter that RO solution in S6, diluting, filter, and filling to obtain sterile fructose
sodium diphosphate injection. The invention has the advantages of greatly reducing the use amount of the
organic solvent in the preparation process and reducing the production cost.