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采用单因素实验法对泥炭提取腐植酸过程中碱抽提和酸解两段工艺进行了研究,得到碱抽提较好的工艺条件为:泥炭破碎粒度为小于0.25mm占62%,碱液质量浓度3%,水浴温度95℃,反应1.5h;酸解较好工艺条件为:保持混合液pH值为3,水浴温度40℃,反应30min,得到腐植酸产率为42.36%。
Single factor experiment was used to study the two processes of alkali extraction and acid hydrolysis in the process of extracting humic acid from peat. The better technological conditions of alkali extraction were as follows: the peat crushing particle size was 62% less than 0.25mm, the lye quality Concentration of 3%, water bath temperature of 95 ℃, the reaction 1.5h; better acid hydrolysis process conditions: to maintain the pH of the mixture was 3, the water bath temperature 40 ℃, the reaction 30min, the yield of humic acid was 42.36%.