纺织学报 ›› 2019, Vol. 40 ›› Issue (8): 80-84.doi: 10.13475/j.fzxb.20180800205

• 染整与化学品 • 上一篇    下一篇

分散红11在超临界二氧化碳中的溶解度及其模型拟合

胡金花1, 闫俊1(), 李红1, 彭建钧1, 郑来久1, 郑环达1, 何婷婷2   

  1. 1.大连工业大学 纺织与材料工程学院, 辽宁 大连 116034
    2.国家知识产权局专利局专利审查协作北京中心, 北京 100160
  • 收稿日期:2018-08-01 修回日期:2019-05-28 出版日期:2019-08-15 发布日期:2019-08-16
  • 通讯作者: 闫俊
  • 作者简介:胡金花(1992—),女,硕士生。主要研究方向为超临界流体染色。
  • 基金资助:
    辽宁省博士科研启动基金项目(201601270);辽宁省科技厅科学事业工艺研究基金项目(20170052);高端外国专家项目(GDW 20182100324B)

Measurement and model fitting for solubility of Disperse Red 11 in supercritical CO2

HU Jinhua1, YAN Jun1(), LI Hong1, PENG Jianjun1, ZHENG Laijiu1, ZHENG Huanda1, HE Tingting2   

  1. 1. School of Textile and Material Engineering, Dalian Technology University, Dalian, Liaoning 116034, China
    2. Patent Examination Cooperation (Beijing) Center of the Patent Office, Beijing 100160, China
  • Received:2018-08-01 Revised:2019-05-28 Online:2019-08-15 Published:2019-08-16
  • Contact: YAN Jun

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摘要：

为实现超临界二氧化碳(CO2)染色的工业化应用,采用自主研发的高压超临界流体实验装置,在温度为353.15~393.15 K、压力为16~24 MPa条件下,利用动态法测量了分散红11(1,4-二氨基-2-甲氧基蒽醌)在超临界二氧化碳中的溶解度,并采用Chrastil经验模型和MST方程对实验结果进行拟合,探讨影响分散染料在超临界CO2中溶解度的因素。结果表明:压力越高,二氧化碳密度越大,分散红11在超临界CO2中的溶解度越高;随温度升高,分散红11的溶解度先增加后降低;分散红11的最优溶解度工艺条件为温度383.15 K,压力24 MPa;Chrastil经验模型关联水平在0.90以上,MST方程关联水平为0.55,Chrastil经验模型关联结果优于MST方程。

关键词: 超临界二氧化碳, 分散红11, 溶解度, Chrastil经验模型, MST方程

Abstract:

In order to realize the industrial application of supercritical carbon dioxide (CO2) dyeing, a high pressure supercritical fluid experimental device was developed independently under the conditions of temperature of 353.15-393.15 K and pressure of 16-24 MPa. The solubility of Disperse Red 11 (1,4-diamino-2-methoxyanthraquinone) in supercritical carbon dioxide was measured by a dynamic method. The experimental results were fitted by Chrastil empirical model and MST equation, and the factors affecting the solubility of disperse dyes in supercritical CO2 were discussed. The results show that the higher the pressure is, the higher the density of carbon dioxide is, the higher the solubility of Disperse Red 11 in supercritical CO2. With the increase of temperature, the solubility first increases and then decreases. The optimum process conditions of solubility of Disperse Red 11 is temperature of 383.15 K and pressure of 24 MPa. The correlation level of Chrastil empirical model is above 0.90, and the correlation level of MST equation is 0.55. Chrastil empirical model has better correlation results than MST equation.

Key words: supercritical carbon dioxide, Disperse Red 11, solubility, Chrastil empirical model, MST equation

中图分类号: 

  • TS193.21

图1

分散红11分子结构式"

图2

超临界实验装置图 H01—CO2罐; H02—换热器; H04—高压泵; H03—换热器;H06—染料釜; H07—染色釜; H08—分离釜;HO9—冷凝器;H10—CO2储罐;H11—流量计。"

表1

分散红11在不同超临界CO2溶解温度、压力中的溶解度和CO2密度"

P/
MPa		 T=353.15 K T=363.15 K T=373.15 K T=383.15 K T=393.15 K
y/
10-6		 ρ/
(kg·m-3)		 y/
10-6		 ρ/
(kg·m-3)		 y/
10-6		 ρ/
(kg·m-3)		 y/
10-6		 ρ/
(kg·m-3)		 y/
10-6		 ρ/
(kg·m-3)
16 2.37 468.44 4.65 408.01 7.30 363.69 8.39 330.47 6.42 304.68
18 2.76 539.07 5.06 475.67 7.87 424.81 8.94 384.99 6.94 353.55
20 3.12 593.89 5.49 533.17 8.31 480.53 9.68 436.83 7.41 401.15
22 3.67 636.74 6.01 580.38 8.59 528.94 9.95 484.04 7.93 445.86
24 4.57 671.27 6.97 619.21 9.40 570.19 10.61 528.80 8.77 486.70

图3

溶解度MST拟合曲线"

图4

溶解度Chrastil拟合曲线"

表2

参数值与拟合水平"

温度/K A C R2
353.15 -6.76 0.005 0.90
363.15 -6.15 0.004 0.92
373.15 -5.72 0.003 0.95
383.15 -5.41 0.003 0.95
393.15 -5.35 0.004 0.95
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