Glucose separation

Fig. 5. Fructose—glucose separation on faujasite adsorbents, (a) Ca—Y adsorbent (b) Ca—X adsorbent (c) K—X adsorbent.

The UOP Sarex process has been used since 1978 for the separation of high purity fmctose from a mixture of fmctose, glucose, and polysaccharides (87,88). The pilot-plant performance of fmctose—glucose separation is given in Table 6. 

Glucose separation adsorbents, l 587t with zeolite KX, 1 610 Glucose syrups, 10 286-287 26 288-289 Glucose tolerance, chromium(III)... 

Figure 6.10 Fructose/glucose separation on zeolite adsorbents.

Ca Ca28 [(A102)56(Si02)l36] 12-Ring 8.0 Fructose-glucose separation... 

Strube et al. compared the performance of optimized batch and SMB chromatography [84]. For large scale fructose/glucose separation they found that the optimum batch productivity is 1.7 times higher than the optimized SMB productivity. On the other hand, the optimized solvent requirement is twice as high, which is important because the most important cost factor of this process is the price of the eluent. Thus, the specific separation cost for the fructose/glucose separation is much lower for the SMB than for the batch chromatography process. 

Liquid separation Liquid drying Trace impurity removal Xylene, cresol, cymene isomer separation Fructose-glucose separation Fatty chemicals separation Breaking azeotropes Carbohydrate separation... 

The pilot-plant performance of fructose—glucose separation is given in Table 6. ... 

Invert sugar contains equivalent amount of glucose (d) and fructose (/), but since the fructose has a more powerful /-rotation, the mixture has an /-rotation. Only the glucose separates (e.g. from honey) by crystallisation, and it was long believed that the fructose did not crystallise crystals were first obtained by Jungfleisch and Lefranc. ... 

Figure 3.214 Isocratic separation of sugar alcohols, anhydrosugars, and glucose. Separator columns Metrosep A Supp 15-1- Metrosep Carb 1 column dimensions 150 mm x 4 mm I. d. (Metrosep A Supp 15) and 250 mm x4 mm i.d. (Metrosep Carb 1) column temperatures ...

Ching C.B., Hidajat K. and Ruthven D.M. (1987). Experimental study of a Simulated Counter-Current adsorption system-V. Comparison of resin and zeolite adsorbents for fructose-glucose separation at high concentration. Chem. Eng. Sci., 40, pp. 2547-2555. 

Zeolites a variety of crystalline silicates with pore diameters between 0.3 and 1 nm dehydration of gases, dehydration of liquids (e.g. alcohol), n-paraffins from iso-paraffins, CO2 removal from natural gas, desulfurization of natural gas and other streams, fructose/glucose separation, sulfur compounds from organics, N2/O2 separation very widely used... 

Figure 7.17 Profiles for fructose-glucose separation calculated from the steady state countercurrent (cc) model compared with results calculated by numerical simulation at the midpoint of the switch interval for eight (case 1), four (case 2), two (case 3) and one (case 4) columns (source Hidajat et oL 1986).

Esters of fructose, sucrose, sorbitol, glucose separation by number of acyl groups... 

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