The test study of the iron ions migration in Yunnan laterite

This paper measued and analyzed the concentration change of iron ions in water solution in different the compaction energy,the water content,the temperature and the immersion time,by the immersion test artificial preparation of iron laterite sample.The results of test shown that,the concentration change of iron ions in water solution reflected the migration process of iron ions in laterite,the effect of the cpmpaction energy was the least,the effect of the temperature was the most significant,the effect of the water content was between them.Total concentration of iron ions in water solution increases linearly with reducing the compaction energy,raising the water content and the temperature,extension of the immersion time,but its concentration change reduces linearly.The results can provide a scientific basis in order to study deeply the migration characteristics and the migration mechanisms of iron ions in laterite in water environment and reveal the mechanisms of occurrence and developments of geological disasters in laterite area.