Japan Organo Co., Ltd.

Rohm and Haas Company

Akimitsu Miyahara

Kuniaki Kawano

Hiroji Ushikubo

Kokaji Takahashi

Toshihiko Kanazawa

Fumihiko Matsuda

Sigeo Sakai

Disclosed herein is a method for the separation of a mixed glucose-fructose solution into glucose and fructose by using a strongly acidic cation exchange resin of alkaline earth metal type and, more particularly, such method for the separation of glucose and fructose wherein said mixed glucose-fructose solution and water are supplied to and circulated through a bed of said cation exchange resin at least twice for increasing the distance between a zone of adsorption for glucose and a zone of adsorption for fructose that are formed in this way in the bed and, after such preliminary procedure, the glucose fraction and the fructose fraction of the effluent liquid are removed spotwise from the system while the remaining effluent fractions are again circulated in the order of efflux; at this time, the mixed glucose-fructose solution is injected spotwise into a portion of the liquid flow where the fructose content ratio is approximately equal to or slightly lower than that of the mixed glucose-fructose liquid, and water is injected into a portion of the liquid flow corresponding to the dilute fructose liquid, by way of such separation procedure, the latter step being carried out several times on end for sequentially taking out liquid glucose and fructose.

Method for the separation of glucose and fructose

A liquid storage chamber having a plurality of stages formed by horizontal partition plates which divide the space in the tank into a plurality of storage chambers. The partition plates have openings at their alternating ends so that the liquid supplied to the tank can flow down through the successive liquid storage chamber in a serpentine manner. The liquid storage chamber further has an opening flow setting plate having a multiplicity of liquid passage ports and disposed in each opening for making the liquid flow laminar through each opening and a storage chamber flow setting plate having a multiplicity of flow passage ports and disposed in each liquid storage chamber for making the liquid flowing horizontally in each liquid storage chamber flow in the form of a laminar flow. Consequently, liquids introduced into the tank exhibiting a chromatographic concentration distribution are stored in such a manner as to avoid the mixing of liquids of different components and concentrations due to stirring and convection, in the order of introduction to the tank, and are discharged in the same order as the introduction to the tank.

Liquid storage tank

A method for preparing a cementitious ion-exchange resin comprising treating cation- or anion-exchange resin particles having an effective diameter of from about 0.1 to about 1 mm with a material selected from the group consisting of polyacrylate emulsions, polyvinyl alcohol, and polyvinyl acetate, the material having a hydrophilic group, drying the treated ion exchange resin into a cementitious mass, and optionally reducing the particle size of the mass to provide cementitious ion exchange resin grains having an effective diameter of from about 2 to about 50 mm.

Porous cemented ion exchange resins wherein the beads are cohered to one

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Tokyo, Japan

Akimitsu Miyahara