Distribution of Thioethers in Hydrotreated Transformer Base Oil by Oxidation and ICP-AES Analysis
Distribution of Thioethers in Hydrotreated Transformer Base Oil by Oxidation and ICP-AES Analysis
复制标题
通过氧化和 ICP-AES 分析研究加氢变压器基础油中硫醚的分布
DOI：
10.1021/ie048833b
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发表时间：
2005
影响因子：
4.2
通讯作者：
T. Ren
中科院分区：
文献类型：
--
作者：
Chao Qiu;Sheng Han;and Xingguo Cheng;T. Ren
建立了氧化-电感耦合等离子体原子发射光谱法（ICP-AES）分析模型硫化物中硫醚类化合物分布的方法，并应用于加氢基础油分析。模型硫醚被四丁基高碘酸铵和偏高碘酸钠氧化成相应的亚砜，还原的高碘酸盐以碘酸银的形式定量沉淀。碘酸银在煅烧和加入浓硝酸后转化为AgNO 3。采用电感耦合等离子体原子发射光谱法（ICP-AES）测定银离子的浓度，并通过相关方程计算硫醚的浓度。脂肪族硫醚在回流条件下被高碘酸四丁基铵氧化成亚砜，偏高碘酸钠在回流条件下将全部硫醚氧化成亚砜，然后测定样品油中脂肪族硫醚和总硫醚的含量。用同样的方法分析了克拉玛依加氢Transformer基础油中的硫醚。研究...
A method was developed to analyze the distribution of thioether compounds in model sulfur compounds by oxidation and ICP-AES analysis and then applied to analyze hydrotreated base oil. Model thioethers were oxidized to the corresponding sulfoxides by tetrabutylammonium periodate and sodium metaperiodate, and the reduced periodate was quantitatively precipitated in the form of silver iodate. The silver iodate was transformed to AgNO3 after calcination and the addition of concentrated nitric acid. The concentration of Ag+ was determined by ICP-AES, and the concentration of thioethers was calculated with a relational equation. Aliphatic thioethers could be oxidized to sulfoxides under reflux by tetrabutylammonium periodate, and all thioethers could be oxidized to sulfoxides under reflux by sodium metaperiodate, and then the contents of aliphatic thioethers and total thioethers were determined in sample oil. The thioethers in Kelamayi hydrotreated transformer base oil were analyzed by the same method. Researc...