Preparation method of crystalline fructose
A technology for crystallizing fructose and fructose, which is applied in the field of preparation of crystallized fructose, can solve the problems of difficult crystallization operation and control of crystallized fructose, achieve the effects of simple and efficient process and equipment matching, improve utilization rate, and improve purity
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Embodiment 1
[0028] The preparation method of crystalline fructose of the present invention, comprises the steps:
[0029] 1) Chromatographic separation: starting from the fructose liquid produced by pretreatment of raw materials such as starch, sugarcane and Jerusalem artichoke, through chromatographic separation, the fructose content is increased to more than 95%, and the concentration is more than 25%. The mass percent concentration of the fructose liquid); the glucose content of another component obtained by chromatographic separation is 90%, and the concentration is more than 25%, which is sold after being concentrated;
[0030] The volume of the separating agent is 12L, the separating agent is chromatographic resin or synthetic zeolite for the separation of fructose liquid, 12 chromatographic columns, the temperature is 55°C, the residence time is 340s, the requirement of pure water for the analytical agent: conductivity <5μs / cm (20°C ), pH: 5.5~7.0 (20°C), feed concentration 40%, fe...
experiment example 2
[0043] The preparation method of crystalline fructose of the present invention, comprises the steps:
[0044] 1) Chromatographic separation: starting from the fructose liquid produced by pretreatment of raw materials such as starch, sugarcane and Jerusalem artichoke, through chromatographic separation, the fructose content is increased to more than 95%, and the concentration is more than 25%. The mass percent concentration of the fructose solution); the glucose content of another component obtained by chromatographic separation is 90%, and the concentration is more than 25%, and it is sold after being concentrated;
[0045] Separating agent volume 12M 3, The separating agent is chromatographic resin or synthetic zeolite for fructose liquid separation, 12 chromatographic columns, temperature 60°C, residence time 370s, analytical agent pure water requirements: conductivity <5μs / cm (20°C), pH: 5.5~7.0(20℃), feed concentration 60%, feed flow 0.48m / h, desorbent flow 0.72m / h, fruct...
Embodiment 3
[0058] The preparation method of crystalline fructose of the present invention, comprises the steps:
[0059] 1) Chromatographic separation: starting from the fructose liquid produced by pretreatment of raw materials such as starch, sugarcane and Jerusalem artichoke, through chromatographic separation, the content of fructose is increased to 97%, and the concentration is 30% (for the separated fructose The mass percent concentration of the liquid); the glucose content of another component obtained by chromatographic separation is 90%, and the concentration is 28%, which is sold after being concentrated;
[0060] The volume of the separating agent is 12L, the separating agent is chromatographic resin or synthetic zeolite for the separation of fructose liquid, 12 chromatographic columns, the temperature is 55°C, the residence time is 340s, the requirement of pure water for the analytical agent: conductivity <5μs / cm (20°C ), pH: 5.5~7.0 (20°C), feed concentration 40%, feed flow r...
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