Publications (2)1.01 Total impact
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Article: Mechanisms of By‐Product Formation in the Dehydrochlorination of 1,2‐Dichloroethane
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ABSTRACT: The decomposition of 1,2-dichloroethane (DCE) to vinyl chloride (VC) was studied in the temperature range 620–750 K at DCE partial pressures of 50–450 Torr. Initiation of the radical chain reaction by a XeCl laser allowed controlled degree of conversion which had a strong influence on the formation of the major by-products acetylene and 2-chlorobutadiene. Both compounds are formed via abstraction of olefinic hydrogen from vinyl chloride by Cl atoms. Analysis of the product distribution combined with calculations yielded kinetic data of these side reactions. The mechanism was confirmed by adding HCl and vinyl chloride to the substrate. Formation of other byproducts by homogeneous processes and the photolysis of vinyl chloride are discussed.Berichte der Bunsengesellschaft für physikalische Chemie. 05/2010; 90(11):1058 - 1062. -
Article: Kinetics of UV‐laser induced dehydrochlorination of 1‐chloro‐1,1‐difluoroethane
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ABSTRACT: The decomposition of 1-chloro-1,1-difluoroethane by a radical chain reaction has been studied in a flow reactor in the temperature range from 503 to 773 K. For the initiation of the chain small amounts of added chlorine were photolyzed with a XeCl laser (λ = 308 nm). The formation of the dehydrochlorination and chlorination products, vinylidene fluoride, and 1,2-dichloro-1,1-difluoroethane respectively, is described by a kinetic model. Arrhenius parameters for the two abstraction reactions and were determined by a competition method: Experimental and modeling results are discussed with respect to former studies on the thermal reaction of 1-chloro-1,1-difluoroethane.International Journal of Chemical Kinetics 05/1989; 21(6):387 - 397. · 1.01 Impact Factor
