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CHEN Ming; WU Caijuan; REN Qilong; YANG Yiwen; HUANG Mei
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陈明; 吴彩娟; 任其龙; 杨亦文; 黄梅
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Abstract: Since α-tocopherol has special biological and nutritional activities, it is important to convert non-α-tocopherols to α-tocopherol. This paper focuses on the effects of residence time, pressure, temperature and the mass ratio of formaldehyde to tocopherols on the content of α-tocopherol, the conversion of non-α-tocopherols, the selectivity and yield of α-tocopherol in a fixed-bed reactor. The reactor is made from φ12 (I.D.)×360mm stainless steel pipe. It is packed with a mixture of 5% Pd/C and cation exchange resin catalysts. Preliminary results indicated the suitable operation conditions are pressure 5.0 MPa, temperature 180℃, and mass ratio of formaldehyde to tocopherols 2.0. A product of more than 50% α-tocopherol content has been obtained by using 88.85% mixed tocopherols as raw material.
Key words: tocopherol, fixed bed reactor, conversion
摘要: Since α-tocopherol has special biological and nutritional activities, it is important to convert non-α-tocopherols to α-tocopherol. This paper focuses on the effects of residence time, pressure, temperature and the mass ratio of formaldehyde to tocopherols on the content of α-tocopherol, the conversion of non-α-tocopherols, the selectivity and yield of α-tocopherol in a fixed-bed reactor. The reactor is made from φ12 (I.D.)×360mm stainless steel pipe. It is packed with a mixture of 5% Pd/C and cation exchange resin catalysts. Preliminary results indicated the suitable operation conditions are pressure 5.0 MPa, temperature 180℃, and mass ratio of formaldehyde to tocopherols 2.0. A product of more than 50% α-tocopherol content has been obtained by using 88.85% mixed tocopherols as raw material.
关键词: 维生素E;固定床;反应器;生产工艺;HPLC;温度
CHEN Ming, WU Caijuan, REN Qilong, YANG Yiwen, HUANG Mei. Conversion ofNon-α-Tocopherols to α-Tocopherol in a Fixed Bed Reactor[J]. .
陈明,吴彩娟,任其龙,杨亦文,黄梅. 固定庆反应器中非α-生育酚转型为α-生育酚的研究[J]. CIESC Journal.
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