| 木糖结晶的热力学特性研究 |
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| 引用本文： | 王荣杰,白兰莉.木糖结晶的热力学特性研究[J].安徽农业科学,2012,40(11):6493-6494. |
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| 作者姓名： | 王荣杰 白兰莉 |
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| 作者单位： | 石河子大学化学化工学院新疆兵团化工绿色过程重点实验室,新疆石河子,832003 |
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| 摘 要： | 目的]研究木糖结晶的溶解度及介稳区。方法]采用激光法试验考察了木糖在纯水、乙醇-水溶液中的溶解度以及木糖在水中的超溶解度,确定木糖水溶液的结晶介稳区。结果]木糖在纯水和不同体积配比的乙醇-水溶液中的溶解度随着溶液体系温度降低而明显减小,结晶介稳区的宽度在低温范围内比高温阶段要宽。结论]为利用农产品废弃物木糖结晶的生产操作提供了理论依据。
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| 关 键 词： | 木糖 结晶 溶解度 介稳区 |
Study on Thermodynamic Properties of Xylose Crystallization |
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| Institution: | WANG Rong-jie et al(Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan,College of Chemistry and Chemical Engineering,Shihezi University,Shihezi,Xinjiang 832003) |
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| Abstract: | Objective] The aim was to study the solubility and metastable area of xylose crystallization.Method] Using laser monitor method,the solubility of xylose in pure water and ethanol-water mixed solvents,as well as the supersolubility of xylose in water were measured,and the crystallizing metastable area of xylose in aqueous solution was determined.Result] It was found that the solubility of xylose in pure water,ethanol-water mixed solvents all decreased with the decrease of temperature;its solubility in ethanol-water mixed solvents decreased when ethanol content was increased.The crystallizing metastable area at low temperatures was larger than at high temperatures.Conclusion] The results provide theoretical basis for the industrial process operation of xylose crystallization. |
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| Keywords: | Xylose Crystallization Solubility Metastable area |
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