Biodiesel production from tucumã (Astrocaryum aculeatum Meyer) almond oil applying the electrolytic paste of spent batteries as a catalyst

Flávio A. de Freitas, Igor R. S. Mendonça, Silma de Sá Barros, Wanison A.G. Pessoa, Ingrity S.C. Sá, Larissa B. Gato, Edson Pablo da Silva, Marco Antônio dos Santos Farias, Francisco Xavier Nobre, Paulo José Sousa Maia, Stefan Iglauer, Kaori Katiuska Yamaguchi Isla