| 试剂单宁酸制造方法 |
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| 引用本文： | 冯辉明,张国伟.试剂单宁酸制造方法[J].南京林业大学学报(自然科学版),1990,14(4):84-89. |
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| 作者姓名： | 冯辉明 张国伟 |
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| 作者单位： | 南京林业大学林产化学工程系
(冯辉明，张国伟)，南京林业大学林产化学工程系(单群) |
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| 摘 要： |
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| 关 键 词： | 试剂单宁酸 离子交换树脂 制造 |
THE MANUFACTURING METHOD OF REAGENT TANNIC ACID |
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| Feng Huiming,Zhang Guowei,Shan Qun.THE MANUFACTURING METHOD OF REAGENT TANNIC ACID[J].Journal of Nanjing Forestry University(Natural Sciences ),1990,14(4):84-89. |
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| Authors: | Feng Huiming Zhang Guowei Shan Qun |
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| Institution: | Department of Forest Products Chemistry and Engineering |
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| Abstract: | Industrial tannic acid is dissolved by hot water. The solution is refrigerated and settled. The settled solution is treated with ioncxchangc resin. By means of refrigeration-settle and ion exchange, tannic acid content is increased up to more than 92%, residual content of combustion is decreased less than 0.0031% sodium ion is 0.0083% and these are no fewifcrous and lead ion in the product. Tannic acid quality comes up to the technical index for reagent grade tannic acid. |
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| Keywords: | Reagent tannic acid Ion exchange resin Refrigerated solution |
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