己二酸的结晶热力学研究.pdfVIP

2006 35 3 PETROCHEM ICAL TECHNOLOGY # 245# 1, 2 1 1 樊丽华 , 马沛生 , 相政乐 ( 1. , 300072; 2. , 063009) [] , ( n() Bn () 1 B1, 3 B7, 7 B 3) , 28e 78e , 20 , 28e 78 e , 4 ~ 10 , 3. 33% 6 , , 5. 72e ; , 14. 90e [] ; ; ; ; ; ; ; [] 1000- 8144 ( 2006) 03- 0245- 05 [] TQ 085. 4 [] A Study on Crystallization Thermodynam ics ofAdipic Acid 1, 2 1 1 Fan Li ua ,M a Peis eng , X iang Z engle ( 1. Sc oo l o f C em icalEngineering, T ianjin University, T ianj in 300072, C ina; 2. Co llege o f C em icalEngineering and Biological Tec nology, H ebeiPo ly tec nic Univ ersity, Tangs an H eibei 063009, C ina) [Abstract] So lub ility and supersolubility of adipic acid in w ater, cyclo exanone, cyclo exano l and t eirm ixtures(n ( cyclo exanone) Bn ( cyclo exanol) w ere 1 B 1, 3 B7, 7 B3) w ere m easured by m eans of laser detection device. So lub ilities of adipic acid in above-m entioned so lvents increased w it rising solution tem perature. Solubility of adipic acid in w ater increased more rap idly t an t at in cyclo exanone, cyclo exanol and t eirm ixtures in specified expermi ental temperature range. So lub ility of ad ip ic acid in w ater at 78 e w as approxmi ately 20 tmi es asmuc as t at at 28 e , w ile its so lub ility in cyclo exanone, cyclo exanol and t eir m ixtures w as only 4- 10 tmi es in sam e tem perature range. U sing cub ic equation, t e expermi ental so lub ility data w ere successfu lly r