Hydrodechlorination and hydrodearomatisation of monoaromatic chlorophenols into cyclohexanol on Ru/C catalysts applied to water depollution: influence of the basic solvent and kinetics of the reactions

The Pd-catalyzed hydrodechlorination of chlorophenols in aqueous solutions under mild conditions: A promising approach to practical use in wastewater

“…Phenol was not the sole hydrogenated product, and a small amount of cyclohexanone and cyclohexanol was found by the analysis of GC/MS (Table 2). Compared to chlorophenols, phenol, cyclohexanone and cyclohexanol are lowly toxic and useful as intermediates in chemical manufacturing, too [18]. Hydrogenation of chlorophenols obeys the following stoichiometry Scheme 1.…”

“…The available literatures support the application of catalytic hydrodechlorination of chlorophenols as a feasible non-destructive waste treatment method that operates under mild conditions in liquid phases [16][17][18]. In the hydrodechlorination reactions, chlorophenols could be converted into relatively non-toxic cyclohexanone and cyclohexanol in liquid phase [13,18].…”

Competitive Reaction During Decomposition of Hexachlorobenzene Over Ultrafine Ca–Fe Composite Oxide Catalyst

“…0.1 ng of I-TEQ/Nm 3 ) have been imposed on the emissions of such compounds in many countries [2]. To meet the standards, various methods have been tried to destroy the chlorinated organics including PCDDs and PCDFs, such as biodegradation [3,4], photocatalytic oxidation [5,6] and catalytic hydrodechlorination [7][8][9][10][11][12][13][14][15][16].…”

Carbon materials and catalytic wet air oxidation of organic pollutants in wastewater

“…The integration of a chemical oxidation/reduction pretreatment step takes advantage of the partial contaminant mineralisation reducing the effluent toxicity to levels acceptable for biological end-treatment plants [36][37][38]. Finally, abatement techniques that appear more appropriate than CWAO should be considered for specific pollutant groups including catalytic hydrotreatment for polyphenols [39], chlorophenols [40][41][42][43][44] and nitrites or nitrates [42,[45][46][47][48].…”