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| 针对秸秆类木质素难以降解的特性,研究了超声场下,小麦秸秆在丙酸体系中的分级分离动力学特性。并利用元素分析、凝胶色谱分析、傅立叶变换红外光谱、核磁共振)以及色质联用等仪器分析手段,通过比较处理前后小麦秸秆中木质素的结构变化对该方法的化学反应机理进行研究。同时,以小麦秸秆为研究对象,以丙酸作为反应溶剂,通过对小麦秸秆小麦秸秆进行蒸煮处理,考察小麦秸秆在丙酸溶液中的反应历程,并对其化学动力学和热力学进行分析。通过进行上述内容的研究,探讨丙酸法预处理小麦秸秆的反应机理,为木质纤维素的分级分离提供理论支持。 |
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爱与雨下(金币-1): 请勿在求助内容版块灌水! 2012-02-21 19:39:06
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2楼2012-02-19 23:27:45
【答案】应助回帖
爱与雨下(金币-1): 2012-02-21 19:39:18
爱与雨下(违规存档): 2012-02-21 19:39:35
爱与雨下(金币+2): 2012-02-21 19:39:48
爱与雨下: 广告,下次请勿再使用,否则屏蔽 2012-02-21 19:41:04
爱与雨下:编辑内容 2012-02-21 19:41
忽必烈(金币+30, 翻译EPI+1): ★有帮助 16 2012-02-21 23:06:26
爱与雨下(违规存档): 2012-02-21 19:39:35
爱与雨下(金币+2): 2012-02-21 19:39:48
爱与雨下: 广告,下次请勿再使用,否则屏蔽 2012-02-21 19:41:04
爱与雨下:编辑内容 2012-02-21 19:41
忽必烈(金币+30, 翻译EPI+1): ★有帮助 16 2012-02-21 23:06:26
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Regarding the nondegradable feature of straw lignin, the paper studies the dynamic properties of fractionational separation of wheat stalk in propionic acid under an ultrasonic field. By means of machinery analysis such as elementary analysis, gel chromatographic analysis, FTIR spectroscope, Nuclear Magnetic Resonance (NMR), GC/MS, etc, the study compares the structure change of wheat stalk before and after the procedure and draws conclusions on the chemical reaction mechanism of the applied methodology. At the same time, with wheat stalk being the object, and propionic acid being the solvent, to boil the wheat stalk and observe the reaction process of wheat stalk in propionic acid, and analyze its chemical kinetics and thermodynamics. Through the above stated research, the paper explores the reaction mechanism of processing wheat stalk by using propionic acid, and provides theoretical support to fractionational separation of lignin. [ Last edited by 爱与雨下 on 2012-2-21 at 19:41 ] |

3楼2012-02-21 17:10:53












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