利用铬革固体废弃物制备氨基酸微量元素螯合肥  

Preparing Amino Acid Chelate Fertilizer from Chrome Leather Solid Waste

作　　者：谢红艳[1] 田鲁[1] 罗星[1] 李华[1] 

机构地区：[1]中国农业大学理工学院,山东烟台264670

出　　处：《湖北农业科学》2014年第4期897-900,共4页Hubei Agricultural Sciences

基　　金：中国农业大学烟台研究院基金项目(YT201009)

摘　　要：以铬革固体废弃物为原料,通过脱铬、酸水解法,制备出复合氨基酸。研究不同反应条件下,复合氨基酸与铜盐、锌盐的最佳螯合率。采用正交试验研究物料比、pH、反应温度、反应时间对鳌合反应的影响,得出最佳螯合条件。不同的金属盐与复合氨基酸最佳螯合条件不同,铜与复合氨基酸的最优条件为物料比1∶3,pH 7,80℃,螯合90 min;锌与复合氨基酸的最优条件为物料比1∶1,pH 6,30℃,螯合120 min。To study preparing of amino acids chelate fertilizer from chrome leather solid waste, amino acids were hydrolyzed from chrome leather solid waste through dechroming and acid hydrolysis. The best chelation rate of compound amino acid and copper salt zinc salt was determined under different reaction conditions. Orthogonal experiment was carried out to investigate the effects of ratio of material, pH, reaction temperature and reaction time on the chelate reaction. The best chelation condition was obtained. The best conditions of metal salts were different from which of compound amino acid. The best conditions of copper and compound amino acid were ratio of material 1∶3, pH=6, 80 ℃, 90 min. The best conditions of Zn and compound amino acid were ratio of material 1∶1, pH=6, 30 ℃, 120 min.

关 键 词：铬革固体废弃物 水解 微量元素 正交试验 螯合肥 

分 类 号：TQ44[化学工程—化学肥料工业]