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我省风化煤的资源丰富,而风化煤又是制取腐植酸类肥料的主要原料之一,过去风化煤是煤矿的废物,由于热值低不宜用做燃料。现在用它来做肥料,是变废为宝。风化煤是靠近地层表面的煤,经过长期接触水,空气和微尘物发生缓慢的氧化和水解的作用,煤质起了变化,产生了再生腐植酸。有的群众叫“黑土”。风化煤中腐植酸含量,一般在30—60%左右。由于氧化的不均匀,因此腐植酸含量也不一致,在同一矿层的煤,它的
Weathered coal is rich in resources in our province, and weathered coal is one of the main raw materials for making humic acid-based fertilizers. In the past, weathered coal was a waste from coal mines, which should not be used for fuel because of its low calorific value. Now use it to make fertilizer, is turning waste into treasure. Weathered coal is near the surface of coal, after prolonged exposure to water, air and dust slowly oxidation and hydrolysis, the coal has changed, resulting in the regeneration of humic acid. Some people called “black soil.” Weathered coal humic acid content, generally about 30-60%. Due to the uneven oxidation, humic acid content is not the same coal in the same seam, its