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腐植酸含有多种官能团。这些官能团对土壤起疏松作用,对植物有营养以及刺激植物生长的作用,对水泥、陶瓷能起增强易和性的作用等,所以在工业上得到广泛的应用。褐煤是腐植酸的主要来源之一,我国褐煤资源丰富。但是在有些褐煤中腐植酸含量很低,直接抽提不经济。为了充分利用这部分资源,可通过轻度氧化法使形成再生腐植酸,如沸腾床空气(或臭氧)氧化法、硝酸氧化等。但这
Humic acid contains a variety of functional groups. These functional groups play a loose role on the soil, the plant nutrition and stimulate the role of plant growth, cement, ceramics can play the role of easy to enhance and ease, so in the industry has been widely used. Lignite is one of the main sources of humic acid, rich in lignite resources in China. But in some lignite humic acid content is very low, direct extraction uneconomical. In order to make full use of this part of the resource, regenerated humic acid can be formed by mild oxidation such as bubbling bed air (or ozone) oxidation, nitric acid oxidation and the like. But this