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›› 2009, Vol. 9 ›› Issue (6): 1103-1108.

• 过程与工艺 • 上一篇    下一篇

阳离子交换树脂法制备L-组氨酸钙工艺

甘林火 翁连进 陈金河   

  1. 华侨大学化学工程系 华侨大学化学工程系 华侨大学化学工程系
  • 收稿日期:2009-08-25 修回日期:2009-09-23 出版日期:2009-12-20 发布日期:2009-12-20
  • 通讯作者: 甘林火

Preparation of Complex of L-Histidine Calcium with Cation Exchange Resin

GAN Lin-huo WENG Lian-jin　 CHEN Jin-he   

  1. Department of Chemical Engineering, Huaqiao University Department of Chemical Engineering, Huaqiao University Department of Chemical Engineering, Huaqiao University
  • Received:2009-08-25 Revised:2009-09-23 Online:2009-12-20 Published:2009-12-20
  • Contact: GAN Lin-huo

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被引次数

7

摘要： 采用阳离子交换树脂法制备L-组氨酸螯合钙，测定了D151和110两种弱酸型阳离子交换树脂的钙离子交换容量及其在26℃下的交换动力学曲线，并考察了温度、NaOH与L-组氨酸摩尔比、L-组氨酸初始浓度和树脂量对2种树脂钙交换过程的影响. 结果表明，D151和110的钙交换容量分别为1.12和2.59 mmol/g；交换过程迅速，工业上交换0.5 h即可达到平衡；钙离子交换是一个放热过程，工业生产中可在室温下或低温下进行；适宜的NaOH与L-组氨酸摩尔比为(1~1.25):1；用D151树脂时适宜的L-组氨酸初始浓度和树脂量分别约为0.46 mol/L和0.125 g/mL；用110树脂时分别约为0.4 mol/L和0.15 g/mL.

关键词: 阳离子交换树脂, 离子交换, L-组氨酸, 钙, 螯合

Abstract: The complex of L-histidine calcium was prepared with D151 and 110 cation exchange resins. The calcium exchange capacities and exchange kinetic curves at 26℃ with the resins were measured. And the effects of temperature, molar ratio of NaOH to L-histidine, concentration of L-histidine, and quantity of resin on calcium exchange process were determined. The results show that calcium exchange capacities of D151 and 110 resins were 1.12 and 2.59 mmol/g, the exchange process was quick, and calcium exchange process exothermic, so industrial process could be carried out at room temperature or low temperature. The proper molar ratio of NaOH to L-histidine was (1~1.25):1, the proper concentration and resin quantity of D151 cation exchange resin were 0.46 mol/L and 0.125 g/mL or so, and those of 110 resin were 0.4 mol/L and 0.15 g/mL or so.

Key words: cation exchange resin, ion exchange, L-histidine, calcium, chelating

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