SOLVENT FOR SEPARATING ETHYL ACETATE-ETHANOL BY EXTRACTIVE DISTILLATION

Abstract

Abstract: A number of solvents for separation of ethyl acetate-ethanol were examined in a VLE experiment apparatus.The integrated properties of the solvents were investigated and the experimental data were correlated with the modified UNIFAC model. It was found from the results that binary mixed solvents (DMSO+DMF) were superior to single solvent (DMSO or DMF) for separating ethyl acetate-ethanol by extractive distillation.The modified UNIFAC model combined with experiments is a rapid,accurate approach to selecting the solvent for extractive distillation.

Key words: N,N-二甲基甲酰胺, 乙酸乙酯, 乙醇, 二甲亚砜, UNIFAC, 溶剂

摘要： 通过实验对萃取精馏分离乙酸乙酯-乙醇共沸体系的溶剂选择进行了研究.结果表明，二元
混合溶剂 (N,N-二甲基甲酰胺+二甲亚砜)的分离性能优于单一溶剂 (N,N-二甲基甲酰胺或二甲亚砜).运用修正UNIFAC模型对实验数据进行了关联，发现修正UNIFAC模型预测法和实验法相结合是一种快速有效的萃取精馏溶剂选择方法.

关键词: N,N-二甲基甲酰胺, 乙酸乙酯, 乙醇, 二甲亚砜, UNIFAC, 溶剂

ZHANG Zhigang, ZHANG Weijiang, YANG Zhicai, CUI Xianbao. SOLVENT FOR SEPARATING ETHYL ACETATE-ETHANOL BY EXTRACTIVE DISTILLATION[J]. CIESC Journal, 2004, 55(2): 226-230.

张志刚, 张卫江, 杨志才, 崔现宝. 萃取精馏分离乙酸乙酯-乙醇的溶剂 [J]. 化工学报, 2004, 55(2): 226-230.

[1]	GU Xueping, TIAN Lulu, FENG Lianfang, ZHANG Cailiang. Thermodynamic modeling with new UNIFAC groups for solubility of nylon66-salt in water system [J]. CIESC Journal, 2016, 67(2): 435-441.
[2]	JIN Nan, WANG Gang, XU Chunming, GAO Jinsen. Predicting vaporization of feedstock in zoning catalytic cracking by UNIFAC model [J]. CIESC Journal, 2014, 65(7): 2710-2716.
[3]	. [J]. CIESC Journal, 2011, 62(S1): 168-173.
[4]	ZHANG Zhigang, LIU Lei, LI Wenxiu, CHEN Lifeng. Effect of ternary mixed solvent for separation of benzene-cyclohexane by extractive distillation [J]. , 2011, 62(9): 2541-2545.
[5]	SHI Youqiang，ZHANG Qiuyu，YIN Yanan，YIN Changjie，ZHANG Baoliang，GU Junwei. Preparation and characterization of 2MMZ-PS microcapsule-type latent curing agent [J]. , 2011, 62(9): 2651-2656.
[6]	ZHANG Qianxia，CUI Gaijing，ZHOU Yue，LOU Jinting，WANG Jiexin. Preparation of beclomethasone dipropionate nanoparticles in T-junction microreactor [J]. , 2011, 62(7): 2080-2085.
[7]	LING Jinlong, CAO Feng, XU Minhong, YU Lili. Density, refractive index and viscosity of binary mixture of ethyl acetate and 1,2-propanediol [J]. CIESC Journal, 2011, 62(5): 1191-1196.
[8]	. Performance of CO₂ falling film absorption in mixed aqueous solution of MDEA and amino acid ionic liquid [J]. , 2011, 62(3): 723-729.
[9]	ZHANG Dandan , XU Shunhua, LIU Zhiyong. Simulation of process for butanone-toluene solvent recovering in dewaxing of complex oil and/or wax mixtures replaced by a pseudo-single heavy component [J]. CIESC Journal, 2011, 62(2): 477-481.
[10]	YUE Jun, YAO Lan, ZHAO Jian, LI Xuezhi, QU Yinbo. Pretreatment of corncob residues in organic solvent and its effect on enzymatic digestibility [J]. , 2011, 62(11): 3256-3262.
[11]	ZHANG Yuecheng，ZHANG Di， ZHAO Jiquan. Intrinsic kinetics for amination of ethanol to acetonitrile over Co-Ni/γ-Al₂O₃ catalyst [J]. , 2011, 62(11): 3156-3163.
[12]	HUANG Xinjiang, HU Yi, YU Dinghua, HU Yaochi, HAN Yuwang. Effect of fusel on dehydration reaction of ethanol to ethylene catalyzed by La/HZSM-5 [J]. CIESC Journal, 2011, 62(1): 97-102.
[13]	CAI Jianxin, LUO Laitao, ZHANG Rongbin. Effect of carbon nanotubes modification on performance of Au/CeO₂ catalyst for partial oxidation of ethanol [J]. CIESC Journal, 2011, 62(1): 92-96.
[14]	WANG Jieying，CHEN Shengpei，WANG Peng，HUANG Rui，LI Mingxuan，SUN Shigang. Preparation of FePt/GC nanocatalysts and their electrocatalytic activities for ethanol oxidation [J]. , 2010, 61(S1): 101-105.
[15]	GU Minming;PAN Haipeng . Application of high-precision vector control in ethyl acetate production [J]. , 2010, 61(8): 2078-2083.

SOLVENT FOR SEPARATING ETHYL ACETATE-ETHANOL BY EXTRACTIVE DISTILLATION

萃取精馏分离乙酸乙酯-乙醇的溶剂

PDF (PC)

Knowledge

Cited

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments