矿源黄腐酸与生化黄腐酸热裂解组分的对比研究  

A Comparative Study of Pyrolytic Components from Mineral-Extracted and Biodegradable Fulvic Acids

作　　者：王智[1] 张惠芬[1] 秦谊[1] 李宝才[1] 张敉[1] Wang Zhi;Zhang Huifen;Qin Yi;Li Baocai;Zhang Mi(Faculty of Life Science and Technology,Kunming University of Science and Technology,Kunming,650500)

机构地区：[1]昆明理工大学生命科学与技术学院,昆明650500

出　　处：《腐植酸》2020年第5期20-26,共7页Humic Acid

基　　金：国家自然科学基金项目(项目编号21466018)。

摘　　要：为了解不同来源黄腐酸在物质组成方面的差异,本研究采用热裂解-气相色谱-质谱联用法分别对从不同产地的泥炭、褐煤和风化煤中提取的黄腐酸进行了热裂解产物分析,同时对比了生化黄腐酸的热裂解组分。结果表明:矿源黄腐酸的热裂解产物主要有乙酸、苯、吡咯、甲苯、糠醛、苯酚、苯并呋喃、丁二酰亚胺、邻苯二甲酸二异丁酯等物质;矿源产地不同,黄腐酸的热裂解产物也大不相同,以糠醛为例,其在会泽泥炭、宝清褐煤、峨山褐煤、托克逊风化煤提取的黄腐酸中含量分别为8.509%、1.989%、6.819%、0。此外,与矿源黄腐酸相比,生化黄腐酸的热裂解产物中含氧脂肪族化合物含量较低,而稠环芳香族化合物的含量较高。In order to figure out the differences of material composition in fulvic acids from different sources,pyrolytic components from mineral extracted and biodegradable fulvic acids were analyzed by pyrolysis-gas chromatography-mass spectrometry(Py-GC-MS).The results showed that the pyrolysis products of mineral extracted fulvic acids mainly contained acetic acid,benzene,pyrrole,toluene,furfural,phenol,benzofuran,succinimide,diisobutyl phthalate,etc.The significant differences of pyrolytic components of fulvic acids from these minerals were caused by mineral type and location.For example,the content of fulvic acid in furfural extracted from Huize peat,Baoqing lignite,Eshan lignite,Tuokexun weathered coal is 8.509%,1.989%,6.819%,0,respectively.In addition,compared with mineral-extracted fulvic acid,the pyrolytic components in biodegradable fulvic acid contain less oxygenated aliphatic compounds while more fused ring aromatic compounds.

关 键 词：矿源黄腐酸 生化黄腐酸 热裂解组分 热裂解-气相色谱-质谱 

分 类 号：TQ314.1[化学工程—高聚物工业] TQ203.8