Potassium titanate for the production of biodiesel

D. Salinas*, S. Guerrero, A. Cross, P. Araya, E. E. Wolf

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

27 Scopus citations


The temperature effect and basic structural features of a potassium catalyst supported on hydrothermal TiO2 were studied. The calcination of a 20%K/TiHT catalyst at temperatures higher than 600 °C, led to a change of the crystalline phase of potassium oxide into a potassium titanate. Despite the low surface area of the catalyst calcined at high temperature total conversion to methyl esters was achieved at 2 h of reaction. These results are explained by the presence of highly strong basic sites associated with the potassium titanate structure formed on these catalysts.

Original languageEnglish
Pages (from-to)237-244
Number of pages8
StatePublished - 15 Feb 2016

Bibliographical note

Funding Information:
We acknowledge support of the National Science Foundation – United States through MRI award 1126374 for the XPS data in this paper.

Publisher Copyright:
© 2015 Elsevier Ltd. All rights reserved.


  • Canola oil
  • Potassium oxide
  • Potassium titanate
  • TiO
  • Transesterification


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