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2,5-呋喃二甲酸在水-醋酸、水-乙腈二元体系中的溶解度
1.赞宇科技集团股份有限公司,浙江 杭州 310009; 2.浙江省生物燃料利用技术研究重点实验室,浙江 杭州 310014
Solubility of 2,5-Furandicarboxylic Acid in Water-Acetic Acid and Water-Acetonitrile Binary Systems
1. Zanyu Technology Group Company Limited, Hangzhou 310009, China; 2. Zhejiang Key Laboratory of Bio Fuel Utilization Technology, Hangzhou 310014, China
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摘要 2,5-呋喃二甲酸(FDCA)的溶解度数据是研究5-HFM催化氧化过程中催化剂失活和产品结晶分离的重要依据。本工作测定了40~90 ℃温度下,FDCA在水-醋酸、水-乙腈二元体系中的溶解度。实验结果表明:随着温度的升高,FDCA的溶解度增大;在单组分体系中,FDCA溶解度的大小顺序为:醋酸>水>乙腈;二元体系中,随着水在体系中摩尔分数的增大,FDCA的溶解度先增大后减小,存在一个最大值;引入温度矫正系数后,λh方程能较好的关联FDCA的溶解度数据。
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郭 霞1
王晓辉1
卢美贞2
关键词 25-呋喃二甲酸5-羟甲基糠醛溶解度λh方程    
Abstract:The solubility data of 2,5-furandicarboxylic acid (FDCA) is an important basis for the study of catalytic deactivation and crystallization separation product in the catalytic oxidation of 5-HMF. At the temperature range of 40 ℃ to 90 ℃, the solubility of FDCA in water-acetic acid, water-acetonitrile binary systems was determined. The experiment results showed that the solubility of FDCA increased with the increase of temperature. In the single component system, the solubility order from large to small was: acitic acid>water>acetonitrile. In the binary systems, as the molar fraction of water increased in the system, the solubility of FDCA first increased then decreased, there was a maximum value. With the introduction of temperature correction coefficient, λh equation can better correlate the solubility data of FDCA.
Key words2,5-furandicarboxylic acid    5-hydroxymethylfurfural    solubility    λh equation   
收稿日期: 2017-11-09     
作者简介: 郭 霞(1982—),女,高级工程师。E-mail:xiag0502@126.com。
引用本文:   
郭 霞1,王晓辉1,卢美贞2. 2,5-呋喃二甲酸在水-醋酸、水-乙腈二元体系中的溶解度[J]. 化学反应工程与工艺, 2017, 33(6): 554-558.
Guo Xia 1,Wang Xiaohui 1,Lu Meizhen 2. Solubility of 2,5-Furandicarboxylic Acid in Water-Acetic Acid and Water-Acetonitrile Binary Systems[J]. 化学反应工程与工艺, 2017, 33(6): 554-558.
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