The present work aimed to evaluate the efficiency of the photo-Fenton process assisted by artificial or solar light applied in the treatment of synthetic textile effluent. For the study of solar radiation was designed and built a solar reactor type Compound Parabolic Collector (CPC), and the efficiency of the treatment was analyzed in terms of color removal, chemical oxygen demand (COD) and spectral scanning of samples. The results obtained showed that the photo-Fenton process was efficient in discoloring the effluent, with emphasis to the study conducted by sunlight that in all operational conditions of work presented removal rates above 90%. In terms of COD, the best efficiency was obtained when 1250 mg L -1 e :62,5 mg L -1 showing rates of 85.40% and 50.20% for the process with artificial or solar light respectively.

No abstract

No abstract

Dichlorotristriphenylphosphinerruthenium(II) complex was used as initiator in isomerization reactions of methyl-eugenol to iso-methyl-eugenol, under controlled atmosphere. The reactions were performed for 24 h in CO2 atmosphere as an oxygen-free atmosphere alternative system, at temperatures of 25, 50 and 75 °C, with a catalyst/substrate ratio of 1: 100 mol. At the end of each experiment, an aliquot of the reaction mixture was removed and analyzed by GC-MS. Approximately 85 % conversion and 75 % selectivity were observed when the experiments were carried out at 50 °C.