Dynamic pore structure evolution of the ion adsorbed rare earth ore during the ion exchange process.

ABSTRACT: During the leaching process of the ion-adsorbed rare earth (RE) ore, the pore structure evolution of the ore body plays a vital role in the seepage of the leaching solution. To investigate the evolution of the pore structure during the leaching process, experiments have been carried out with remodelled RE ore samples based on the physical characteristics of in situ ores. The seepage rate difference between deionized water leaching solution and 2% NH₄Cl leaching solution during the active leaching period was analysed. The porosity and the dynamic pore size evolution of pore structures in the ore body are discussed. Results indicate that along with ion exchange between the RE ore and the leaching solution, the porosity of the sample remains constant and the pore structure s

SUBMITTER: Zhou L 

PROVIDER: S-EPMC6894599 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature