己二酸在几种有机溶剂中溶解度的测定与关联.pdfVIP

Chin. J. Chem. Eng. , 15(1) 110-一114 (2007) Measurement and Correlation for Solubility of Adipic Acid in Several Solvents FANLihua(樊丽华)仙， MA Peisheng(马沛生)3，* and XIANG Zhengle(相政乐)a ~ School of Chemical Engineering, Ti叫in University，吼叫in 30∞72， China o College of Chemical Engineering and Biological Technology , Hebei Poly忧心hnic University , Tangshan 063∞9， China Abstract Using a laser detecting system, solubility data were measured for adipic acid dissolved in six pure sol- vents , namely, cyclohexanone, cyclohexanol, acetic acid , N，N-dimethylformami巾， N,N-dimethylacetamide , and dime由ylsulfoxide a~ 由e tempera阳re range from 293.15K to 353.15K. All these data were regressed by Âh , NRTL , Wilson , and the modified Wilson models. For the study of six， λh ， NRTL , and the modified Wilson models were found to provide an accurate mathematical representation of the experimental results , wi也 overall average absolute relative deviations betwωn measured and calculated values as 1.74%, 2.06% , and 3.06%, respectively.η1巳 r巳sults showed that 放le Âh model is the most suitable for description of the solid-liquid equilibrium containing adipic acid. Keywords solid-liquid equilibrium, solubility, adipic acid, modeling 1 additional purification.ηle purity of materials was Adipic acid is a valuable raw material used in the given in Table 1. production of nylon-俑， fibers , lubricants , plasticizers , and food additives , as well as in the production of in幽 2.2 and procedure termediates for pharmaceuticals , insecticides , and The solubi1ity was measured by synthetic method. bactericides嗣 Conv