均三甲苯/二异丁基甲醇混合溶剂黏度测定及关联

doi:10.11949/j.issn.0438-1157.20150860

化工学报 ›› 2015, Vol. 66 ›› Issue (9): 3377-3382.DOI: 10.11949/j.issn.0438-1157.20150860

均三甲苯/二异丁基甲醇混合溶剂黏度测定及关联

张蓉蓉^1,2, 窦茂斌¹, 袁恩先¹, 李海静³, 王莅^1,3

1 天津大学化工学院, 绿色合成与转化教育部重点实验室, 天津 300072;
2 天津大学求是学部, 天津 300072;
3 天津化学化工协同创新中心, 天津 300072

收稿日期:2015-06-09 修回日期:2015-07-04 出版日期:2015-09-05 发布日期:2015-09-05
通讯作者: 王莅
基金资助:
中石化总公司基础科研项目(413001)。

Measurement and correlation of viscosities of mixed solvents 1,3,5-trimethylbenzene and diisobutylcarbinol

ZHANG Rongrong^1,2, DOU Maobin¹, YUAN Enxian¹, LI Haijing³, WANG Li^1,3

1 Key Laboratory of Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China;
2 Qiushi Honors College, Tianjin University, Tianjin 300072, China;
3 Collaborative Innovation Center of Chemical Science and Engineering(Tianjin), Tianjin 300072, China

Received:2015-06-09 Revised:2015-07-04 Online:2015-09-05 Published:2015-09-05
Supported by:
supported by the Sinopec Corp. Scientific Research Projects (413001).

摘要/Abstract

摘要：

采用乌氏黏度仪,在常压和293.15～323.15 K温度范围内测定了均三甲苯与二异丁基甲醇混合溶剂以及两种纯溶剂的黏度,计算了不同温度和组成下混合溶剂的超额黏度。用Redlich-Kister方程对超额黏度进行了关联;用Andrade方程、UNIFA-VISCO模型以及Grunberg-Nissan模型对黏度进行了关联与预测。结果表明,混合溶剂的黏度随温度升高和均三甲苯含量增加而减小。超额黏度均为负值,且随均三甲苯含量增加呈U形变化,约在均三甲苯摩尔分数为0.3时达到最低。Grunberg-Nissan模型对黏度数据的关联和预测性最好,预测值与实测值的最大和平均相对偏差分别为12.96%和5.74%。

关键词: 三甲苯, 二异丁基甲醇, 黏度, 蒽醌法, 过氧化氢

Abstract:

The viscosities of mixed solvents consisted of 1,3,5-trimethylbenzene (TMB) and diisobutylcarbinol (DIBC) were determined at temperature ranging from 293.15 to 323.15 K and atmospheric pressure for the whole range of compositions by using viscometer. The excess molar viscosities of the mixed solvents were calculated and correlated by Redlich-Kister equation. The viscosities of the mixtures were correlated and predicted by Andrade equation, UNIFA-VISCO model, and Grunberg-Nissan model. The viscosities of the mixtures decreased with the increase of temperature and molar fraction of TMB. The excess viscosities showed negative deviations from ideal behavior, gave U-shaped curves as the molar fraction of TMB (x₁) increased, and reached the minimum values at ca x₁=0.3. The Grunberg-Nissan model was quite reasonable with the maximum and average relative errors between predicted and experimental data of 12.96% and 5.74%.

Key words: trimethylbenzene, diisobutylcarbinol, viscosity, anthraquinone process, hydrogen peroxide

中图分类号:

张蓉蓉, 窦茂斌, 袁恩先, 李海静, 王莅. 均三甲苯/二异丁基甲醇混合溶剂黏度测定及关联[J]. 化工学报, 2015, 66(9): 3377-3382.

ZHANG Rongrong, DOU Maobin, YUAN Enxian, LI Haijing, WANG Li. Measurement and correlation of viscosities of mixed solvents 1,3,5-trimethylbenzene and diisobutylcarbinol[J]. CIESC Journal, 2015, 66(9): 3377-3382.

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均三甲苯/二异丁基甲醇混合溶剂黏度测定及关联

Measurement and correlation of viscosities of mixed solvents 1,3,5-trimethylbenzene and diisobutylcarbinol

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