Síntesis de nitro-derivados a partir de bifenilos policlorados presentes en aceites dieléctricos utilizando mezcla ácida

Abstract

In this study a method is developed to prepare saltpeter derived of dielectric oils with PCBs using "mixed acid" with the objective of using them as amino-derived for industrial used and/or degradation by biological methods. The nitration of the dielectric oil was carried out using HNO3[90%] and combinations of "mixed acid" in relationships: HNO3[67%] /H2SO4[97%], HNO3[67%]/H2SO4[oleum], HNO3[90%]/H2SO4[oleum], HNO3[90%]/H2SO4[97%] the time of reaction went from two hours to ambient temperature. The analyses carried out in IR to the nitration-oils evidence the presence of the group NO2- incorporate to the molecule of PCBs. The mass chromatogram of these samples present the synthesis of new compounds. The presence of a bigger number of compound was observed with the nitration relationship HNO3[90%]/H2SO4[oleum].