风化煤在磷矿酸解体系中的吸附特性研究  

Research on adsorption characteristics of weathered coal in acid decomposing phosphate rock system

作　　者：汤建伟[1] 赵文莲[1] 化全县[1] 张宝林[1] 

机构地区：[1]郑州大学化工学院,河南郑州450001

出　　处：《化工矿物与加工》2007年第8期11-14,共4页Industrial Minerals & Processing

摘　　要：研究了风化煤对磷矿酸解反应体系中Ca2+、Fe3+、Al3+及H2PO4-的吸附特性。实验表明:风化煤吸附上述4种离子从易到难的顺序及最大吸附量从大到小的顺序均为:Fe3+、Ca2+、Al3+、H2PO4-;吸附等温方程均符合Lang-muir方程,且相关性显著。为探讨风化煤对磷矿转化率的影响和生产生态型磷肥提供了理论基础。For a theory analysis on the conversion ratio of phosphate rock in ecological phosphate fertilizer production, the adsorption characteristics of weathered coal on Ca^2＋ ,Fe^3＋ ,Al^3＋ and H2PO4 ^- in acid decomposing phosphate rock system were discussed. The results showed that the sequences both adsorption from easy to difficult and the maximum adsorption values from large to little were ranked in Fe^3＋ ,Ca^2＋, Al^3＋ and H2PO4^- , and the adsorption in accordance with Langmuir equations in significant correlations.

关 键 词：风化煤 磷矿 酸解反应体系 吸附特性 

分 类 号：TQ442.9[化学工程—化学肥料工业]