Product Prediction: Intermediates Formed During Rare Earth Reactions

Authors

  • Rodrigo Castañeda Universidad Nacional Autónoma de México
  • Elizabeth Chavira Universidad Nacional Autónoma de México
  • Oscar Peralta Universidad Nacional Autónoma de México

DOI:

https://doi.org/10.29356/jmcs.v58i1.160

Keywords:

Rare-earth, XRD, TG-DSC, solid-state reaction, thermal stability

Abstract

Thermal analyses, X-ray diffraction (XRD), and HR-XRD (High Resolution XRD) were used to identify thermal behavior products in a family of solid-state reactions involving rare earth (REE) reagents. REE where sorted in light and heavy groups. The general reactions under study were: REE2O3 + Fe2O3 + As2O3 → 2REEFeO3 +
As2O3↑ and 2REE(OH)3 + Fe2O3 + As2O3 → 2REEFeO3 + As2O3↑ + 3H2O↑, REE= La, Ce, Nd, Sm, Gd, Dy, Ho, Er, and Yb. Based on the experimental results, it is possible to predict the different compounds of REE products in a series of reactions analyzing only three of the reactions, two for light REE and one for heavy REE.

Downloads

Download data is not yet available.

Author Biographies

Rodrigo Castañeda, Universidad Nacional Autónoma de México

Instituto de Investigaciones en Materiales

Elizabeth Chavira, Universidad Nacional Autónoma de México

Instituto de Investigaciones en Materiales

Oscar Peralta, Universidad Nacional Autónoma de México

Centro de Ciencias de la Atmósfera

Downloads

Published

2017-10-12

Issue

Vol. 58 No. 1 (2014): Regular Issue

Section

Regular Articles

License

Authors who publish with this journal agree to the following terms:

  • Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
  • Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.