腐植酸复肥生产中风化煤腐植酸化学活化条件分析  

Analysis on chemical activation of humic acid from weathered coal in humic acid compound fertilizer production

作　　者：曲海滨[1,2,3] 宋付朋[1,2,3] 丁方军 陈士更 郑沛[1,2,3] 

机构地区：[1]土肥资源高效利用国家工程实验室,山东泰安271018 [2]国家缓控释肥工程技术研究中心,山东泰安271018 [3]山东农业大学资源与环境学院,山东泰安271018 [4]山东农大肥业科技有限公司,山东泰安271000

出　　处：《磷肥与复肥》2013年第6期38-41,共4页Phosphate & Compound Fertilizer

基　　金：山东省科学技术发展计划(2011GNC11309);山东省自主创新成果转化重大专项项目(2012ZHZX1A0408)

摘　　要：分析当前腐植酸复肥生产中常用的酸催化氧解法和碱溶酸析法（酸法和碱法）的活化条件对风化煤腐植酸活化率的影响,探索了两种方法在复肥生产中最佳的腐植酸活化条件.研究表明,风化煤腐植酸最佳活化条件分别为：酸法采用硝酸、硫酸或二者混酸为活化剂,每克风化煤需纯酸量0.5 ～ 1.5 mL、反应时长15 ～ 30 min、反应温度80℃左右；碱法采用强碱或混碱、氨水为活化剂,每克风化煤需碱折纯量0.10～ 0.23 mL、反应时长30 ～ 60 min、反应温度50～90℃.The effects of chemical activation conditions of two commonly used methods （acid method and alkali method） on the activation rates of humic acid from weathered coal in the current production of compound fertilizers are analyzed.The best activation conditions of humic acid with two methods are researched. Based on the research, the best conditions of acid method are as follows： with nitric acid, or sulfuric acid or their mixed acid as activator, with pure acid 0.5-1.5 mL per gram weathered coal, the reaction time of 15-30 min, the reaction temperature around 80 ℃; the best conditions of alkali method are as follows： with strong alkalia, or mixed alkalia, or ammonia as activator, the pure alkali 0.10-0.23 mL per gram weathered coal, the reaction time of 30-60 rain, the reaction temperature of 50-90 ℃.

关 键 词：复肥生产 风化煤腐植酸 化学活化 酸催化氧解法 碱溶酸析法 活化条件 

分 类 号：S143.11[农业科学—肥料学]