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C. Guo and Z. Quian, “Acidic and Catalytic Properties of Niobic Acid Crystallized at Low Temperature,” Catalysis Today, Vol. 16, No. 3-4, 1993, pp. 379-385. doi:10.1016/0920-5861(93)80077-E

has been cited by the following article:

• TITLE: Effect of Nb2O5·nH2O Termal Treatment on the Esterification of a Fatty Acid

  AUTHORS: Deborah A. dos Santos, Valdemar Lacerda, Júlia Tristão do C. Rocha, Reginaldo B. dos Santos, Sandro J. Greco, Alvaro C. Neto, Renzo C. Silva, Eustáquio V. R. de Castro

  KEYWORDS: Nb2O5·nH2O; Calcination; Fatty Acid; PLS Calibration

  JOURNAL NAME: Modern Research in Catalysis, Vol.2 No.3, June 24, 2013

  ABSTRACT: In general, esterification reactions are favored by the increase in reaction temperature, excess of one of the reactants (usually alcohol), and additions of acid or basis catalysts. Esterification of oleic acid with methanol catalyzed by Nb2O5·nH2O calcined at different temperatures showed good conversion rates, especially at reaction temperature of 100°C and higher catalyst proportions. PLS calibration showed good results for predicting the amounts of methyl oleate in reaction products.