| Customization: | Available |
|---|---|
| Melting Point: | 30-33 °c (Lit.) |
| Boiling Point: | 245-246 °c (Lit.) |
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White flake crystal, hygroscopic. Soluble in water and alcohol, ether organic solvents
The invention relates to a method for separating levulinic acid from monosaccharide hydrolysate and a method for extracting and separating high purity levulinic acid from monosaccharide hydrolysate by ion exchange resin adsorption. The technical scheme is as follows: Using monosaccharide hydrolysate as starting material, high content of levulinic acid is obtained by column chromatography, atmospheric concentration and vacuum rectification; The whole separation process is as follows: 1) The weak basic anion exchange resin is loaded into the column by wet method and pre-treated for reserve use; The monosaccharide hydrolysate was passed through the chromatographic column at a flow rate of 0.5 ~ 3.0 times the bed volume/hour and a temperature of 20 ~ 40ChemicalbookºC. 2) Flush the chromatographic column with deionized water to wash the neutral impurities in the monosaccharide hydrolysate at a flow rate of 0.5 ~ 3.0 times the bed volume/hour at a temperature of 20 ~ 40ºC : 3) The levulin adsorbed on the resin was acid-washed off with 0.1 ~ 1.0mol/l eluent, the flow rate was 0.3 ~ 2.0 times the bed volume/hour, and the temperature was 20 ~ 40ºC; The eluent was collected separately, the flow fraction of pure levulinic acid was combined, the concentration at atmospheric pressure and rectification at 0.01 ~ 0.05MPa were used to obtain high levulinic acid content.
1,Quick details for Levulinic acid
| Product name | Levulinic acid |
| CAS | 123-76-2 |
| Molecular Formula | 2C9H7NO.H2O4S |
| Molecular weight | C5H8O3 |
| Apperance | 116.12 |
| purity | ≥99% |
2.Useage for Levulinic acid
As an important chemical raw material or solvent, it can be used to produce resins (water-soluble resins made from bisphenol acid), fragrances, paints, coatings, dyes and surfactants, etc.
3 .storage for Levulinic acid
Store below +30°C.
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