Method of producing sorbic alcohol and mannitol by utilizing cellulose
A cellulose and sorbitol technology, applied in organic chemistry, hydrolysis preparation and other directions, can solve the problems of inevitable equipment corrosion, increased equipment investment cost, low reaction efficiency, etc., and achieves a small investment, low equipment requirements, and simple reaction system. Effect
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[0015] Example 1. Production of sorbitol and mannitol by hydrolyzing cellulose
[0016] 1g microcrystalline cellulose (purchased from Alfa Aesar) was placed in a 150ml reactor filled with sufficient water (50ml), 0.4g Pd / C catalyst was added, and H 2 , Make the pressure in the reaction kettle 60atm, heat to 290°C, and react for 1 hour.
[0017] The conversion rate of cellulose and the yield of sorbitol and mannitol were tested according to the following method:
[0018] The reaction product was analyzed by mass spectrometry, and the result showed that the mass-to-charge ratio of 183 molecular ion peak by mass spectrometry was consistent with the molecular ion peak of sorbitol and mannitol that gave a mass-to-charge ratio of 183 molecular weight on the mass spectrum; HPLC analysis and quantification, (Agilent 1100Series HPLC, purchased by Beijing Agilent Co., Ltd., separation column: HAMILTON HC-75 Calcium Form Cation Eechange, analysis conditions: 30℃, 0.6ml / min, ultrapure water a...
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[0026] Example 2: Production of sorbitol and mannitol by hydrolyzing cellulose
[0027] Put 1g of natural cellulose (purchased from Beijing Reagent Company) in a 150ml reactor filled with sufficient water (50ml), add 0.1g Pt / C catalyst, and charge H 2 , Make the pressure in the reaction kettle 60atm, heat to 220°C, and react for 2 hours.
[0028] The conversion rate of cellulose and the yield of sorbitol and mannitol were tested according to the following method:
[0029] The reaction product was analyzed by mass spectrometry, and the result showed that the mass-to-charge ratio of 183 molecular ion peak by mass spectrometry was consistent with the molecular ion peak of sorbitol and mannitol that gave a mass-to-charge ratio of 183 molecular weight on the mass spectrum; High performance liquid phase analysis and quantification, (Agilent 1100Series HPLC, purchased by Beijing Agilent Co., Ltd., separation column: HAMILTON HC-75 Calcium Form Cation Eechange, analysis conditions: 30°C, ...
Example Embodiment
[0031] Example 3 Production of sorbitol and mannitol by hydrolyzing cellulose
[0032] Place 1g of microcrystalline cellulose (microcrystalline, purchased from Alfa Aesar) in a 150ml reactor filled with a sufficient amount of water (50ml), add 0.2g of Ru / C catalyst, and fill with H 2 , Make the pressure in the reaction kettle 20atm, heat to 240°C, and react for 1.5 hours.
[0033] The conversion rate of cellulose and the yield of sorbitol and mannitol were tested according to the following method:
[0034] The reaction product was analyzed by mass spectrometry, and the result showed that the mass-to-charge ratio of 183 molecular ion peak by mass spectrometry was consistent with the molecular ion peak of sorbitol and mannitol that gave a mass-to-charge ratio of 183 molecular weight on the mass spectrum; High performance liquid phase analysis and quantification, (Agilent 1100Series HPLC, purchased by Beijing Agilent Co., Ltd., separation column: HAMILTON HC-75 Calcium Form Cation Ee...
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