【摘要】 对国内以煤炭为原料制取的十四种具有一定代表性的腐植酸、黄腐酸用化学和物理方法进行了表征。结果表明,黄腐酸比腐植酸含有较多的氧和酸性基团,较少的醌基、自由基和芳香度。从泥炭经褐煤到风化煤,所含腐植酸的脂肪结构逐步减少,芳香化程度逐步加深。巩县黄腐酸比较特殊,其性质介乎黄腐酸与风化煤腐植酸之间,并具有某些特点。更多还原

【Abstract】 Fourteen representative humic and fulvic acids isolated from Chinese coals were characterized by chemical and physical methods.The results show that fulvic acids contain more oxygen and acidic groups,fewer quinone groups and free radicals and lower aromaticity as compared with humic acids. The aliphatic constituents of humic acids of different coals decrease by the order of peat,brown coal and weathered coal while their degree of aromatization increase progressively.The fulvic acid from Gong-Xian weathered coal exhibits some peculiarities,its properties are somewhat between typical fulvic acid and humic acid of weathered coals.更多还原