MoO3/ironepinelium catalyst supported on ornamental rock residues with potential application in biodiesel production

The search for environmentally correct fuels has been gaining momentum/prominence in scientific research, example, using oils or fats of animal/vegetable origin and commercial/residual oils. These consist primarily free fatty acids with high energy power can be converted into acid esters (biodiesel) highly efficient recyclable heterogeneous catalysts. Among the catalysts most used conversion biodiesel, two are worth mentioning: MoO3 ferrospinels. first is because it contains its structure, especially orthorhombic, acidic active sites Lewis Brönsted-Lowry, second they have specific surface areas adequate magnetic characteristics that allow recovery medium. Another interesting point use residues catalysis highlighted, as materials contain metals such Fe, K, Si, Mg, Na, Ti their composition, which accelerate reactions. Thus, this sense, article proposes to carry out a bibliographical survey literature experimental papers published reviews on ferrospinels supported waste from cut ornamental rocks (granite/marble) production core search, online data platforms Science Direct (Elsevier) Web covering period 2016 April 2023, Start software (State Art through Systematic Review). results revealed quantitative 223 articles general, 62 were accepted, 161 rejected. While review extraction stage, 22 40 In addition, catalytic supports biodiesel oxides, nothing specifically informing cuts host material (support) aiming biodiesel. Therefore, meaning not possible type residue support catalysts, but rather there may lack research investigating application.