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Research on the Selective Degradation and Molecular Weight of Humic Acid
Author(s): Fan Xingming, Zhang Shiwan, Zhan Zao, Zhou Huazhong
Pages: 20-
24,34
Year: 2011
Issue:
1
Journal: Humic Acid
Keyword: 腐植酸; 黄腐酸; 选择性降解; 修正; 冰点下降法; 分子量测定;
Abstract: 天然腐植酸资源丰富,腐植酸的选择性氧化降解及合成研究涉及的机理复杂,应用领域宽.通过超声活化、化学氧化、生物降解等方法对原料煤进行预处理,有效地提高了原料煤中腐植酸和黄腐酸的含量,其中生物降解褐煤、风化煤9~30 d,棕、黑腐酸含量增加到302.6%,黄腐酸含量增加到593.99%;并通过对冰点下降常数的修正,建立了适合黄腐酸的分子量测定方法.修正后的冰点下降常数Kf=3.94 kg·K·mol1...
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