Transformation of chlorinated methanes by zero-valent aluminum coupled with Pd/Al2O3.

摘要: The transformation of chlorinated methanes by zero-valent aluminum under various pH conditions has been examined in the presence and absence Pd/Al2O3. In Pd/Al2O3, carbon tetrachloride was primarily transferred to chloroform (65%) dichloromethane (15.3%) at 2.5 while little hydrodehalogenation intermediates (~5%) found 10.8. This indicates that undergoes low but not high pH. production could be attributed base-catalyzed hydrolysis resulting formation products can detected provided analytic methods. degradation rates were increased a factor 10-43 compared system without suggesting Pd/Al2O3 serves as catalyst. Further, complete with led directly methane (86.4%) ...