Study on components of furfural residue from corncob
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In this paper, the components of furfural residue are analyzed. Total sugar content occupies 47.36% of absolute drying residue, and glucose occupies 83.23% of total sugar content. By combining the phenyl nucleus exchange reaction with nitrobenzene oxidation, the quantity of structural units of phenyl nuclei was determined, products from syringyl units occupy 50% of klason lignin. Especially, diphenyl methane type syringyl units occupy 38.80%, and guaiacyl units 25%, other condensed guaiacyl units about 20%. The furfural residue is not a good material for the manufacture of adhesives, but for active carbon. The yield of furfural residue may achieve about 350 thousand tons per year, but it has not been used in industry in China.
Key wordsHydrolysis of corncob Lignin Nucleus exchange reaction Alkaline nitrobenzene oxidation Guaiacyl nuclei Syringyl nuclei Glucose
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- 1.Funaoka, M. and I. Abe. Degradation of Protolignin by the Nucleur—exchange Method. Mokuzai Gakkaishi. 1985, 31(8): 671–676.Google Scholar
- 2.Funaoka, M. and I. Abe. The Reaction of lignin under the Presence of Phenol and Boron Trifludride III, The Chemical Structure of Lignin Required for the Liberation of Phenyl Nuclei. Mokuzai Gakkaiishi. 1980, 26:334–341.Google Scholar
- 3.Funaoka, M. and I. Abe. Condensation of Degree of Softwood Protolignin. Bulletin of the Faculty of Agriculture, Mie University, TSU Japan. 1986, 73: 347–362.Google Scholar
- 4.Leopold, B. and L. Malmstrom, Nitrobenzene Oxidation of Compounds of the Lignin Type. Acta Chem. Scand. 1951a, 5: 934–936Google Scholar
- 6.Khol’ kin Yu. Technology of Hydrolytic Production. Moskva, Su. 1989, Chapter 3: 79–92Google Scholar