Process for the stabilization of the magnetite obtained by reduction of hematite chemistry going on

摘要

Process for the stabilization of the magnetite obtained by reducing hematite chemistry going on. The present invention is a process for stabilization of magnetite (chemical formula ideal, Fe ~ 3 ~ ~ 4 ~) finely divided.Obtained from the chemical reduction of feu00ac 3 + n of hematite (chemical formula ideal, 244 Fe ~ 2 ~ ~ 3 ~), using it as a source reduction, coal, of any origin.Under heating to a temperature between 300 and 800 C 198 198 C.The process of stabilisation of the magnetite formed is immersed in the material, immediately after the heat treatment, glycerin (CH ~ 2 ~ ohchohch ~ 2 ~ Oh, propane 1,2,3 - triol),Which prevents the contact with air and oxidation of magnetite formed, allowing its use in catalytic processes or other applications that require small particle size.High reactivity and exposure of the active surface and not oxidized the magnetite.The process leads to the formation of a protective layer by the action of glycerin, which can eventually be removed, if necessary, for use in heterogeneous catalytic processes.