| 磷酸钙沉降和浮升吸附脱色效果的对比研究 |
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| 引用本文： | 张雁,蔡妙颜,李琳,郭祀远. 磷酸钙沉降和浮升吸附脱色效果的对比研究[J]. 广西大学学报(自然科学版), 1999, 24(1): 2 |
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| 作者姓名： | 张雁 蔡妙颜 李琳 郭祀远 |
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| 作者单位： | 华南理工大学轻化工研究所,广州,510641 |
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| 摘 要： | 研究在沉降和浮升处理过程中，新生磷酸钙于２０％的蔗糖溶液里对焦糖、葡萄糖碱性降解物、类黑素的吸附等温规律．实验结果表明，不论是沉降过程，还是浮升过程，新生磷酸钙对这些色素的吸附等温曲线均属于Ｌａｎｇｍｉｕｒ型，可用Ｌａｎｇｍｉｕｒ方程进行准确描述；新生磷酸钙在浮升过程中对这些色素的等温吸附量明显高于沉降处理过程．
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| 关 键 词： | 新生磷酸钙沉淀 色素 沉降过程 浮升过程 吸附等温线 数学模型 |
Comparative Studies on Adsorptive Decolorization by Calcium Phosphate in Precipitation and Flotation |
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| Zhang Yan,Cai Miaoyan,Li Lin,Guo Siyuan. Comparative Studies on Adsorptive Decolorization by Calcium Phosphate in Precipitation and Flotation[J]. Journal of Guangxi University(Natural Science Edition), 1999, 24(1): 2 |
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| Authors: | Zhang Yan Cai Miaoyan Li Lin Guo Siyuan |
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| Abstract: | In precipition and flotation,the adsorption properties of caramel,alkaline degradation product to glucose and melanoidin on the surface of freshly prepared calcium phosphate (FPCP) in 20% sugar solution were investigated.The experimental results indicated that the adsorption isotherms of the colorants on FPCP is classified as Langmiur type regardless of precipitation and flotation,and they can be accurately described by Langmiur equation.Larger magnitudes of colorants can be adsorbed by FPCP in flotation than in precipitation. |
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| Keywords: | freshly prepared calcium phosphate colorant precipitation flotation adsorption isotherm mathematical model |
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