| 紫外可见分光光度法对单宁酸与钒络合性质的研究 |
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| 引用本文： | 牟学春,凌开成,高竹青.紫外可见分光光度法对单宁酸与钒络合性质的研究[J].应用化工,2009,28(1). |
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| 作者姓名： | 牟学春 凌开成 高竹青 |
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| 作者单位： | 1. 太原理工大学,化学化工学院,山西,太原,030024
2. 太原科技大学,化学与生物工程学院,山西,太原,030021 |
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| 摘 要： | 采用紫外可见分光光度法研究了单宁酸与钒络合的性质,发现不同pH值时,单宁酸与钒络合物的络合比均为1∶1,且随着pH值的增大,络合物稳定性增强;相同pH值时,随着温度的升高,络合物稳定性减弱;pH值在8~9,温度在25~40℃,单宁酸与钒络合,既可以防止栲胶脱硫过程中硫氧钒沉淀生成,又可以减少催化剂的损失。
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| 关 键 词： | 钒-单宁酸络合物 栲胶脱硫 稳定常数 紫外可见分光光度法 |
Study on tannate and vanadium indexing property by ultraviolet spectrophotometry |
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| MU Xue-chun,LING Kai-cheng,GAO Zhu-qing.Study on tannate and vanadium indexing property by ultraviolet spectrophotometry[J].Applied chemical industry,2009,28(1). |
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| Authors: | MU Xue-chun LING Kai-cheng GAO Zhu-qing |
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| Abstract: | Tannin and vanadium indexing composing by means of spectrography is defined,tannin and vanadium indexing composing in different basicity is 1 ∶1,with the pH value increasing,stability is more and more reinforce;In the same basicity,with the temperature increasing,stability is more and more weaken;This experiment elicits that basicity should be master of 8～9,and temperature 25～40 ℃.It can prevent deposition,as well as reduce the losing of catalyzer. |
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| Keywords: | tannate and vanadium indexing tanning extract desulfurization steady constant ultraviolet spectrophotography |
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