Patent ID: 6893616
Filing Date: 2005-05-17
Classification: A62D,B01D,B01J

Abstract:
1. In an apparatus in which a feedstock containing an organic halide either alone or in a mixture with an organic compound is gasified or atomized and subjected to the reaction with calcium oxide, barium oxide or a mixture thereof that are heated at 400-700° C., whereby the halogen in the organic halide is converted to a calcium halide and/or a barium halide, the improvement comprising: a) a means for gasifying or atomizing the feedstock containing the organic halide either alone or in admixture with the organic compound; b) a heating means for heating the particles of calcium oxide and/or barium oxide at a controlled temperature of 400-700° C.; c) a means for supplying the particles of calcium oxide and/or barium oxide continuously; and d) a reaction column equipped with a supply section for the feedstock as supplied from said gasifying or atomizing means and which contains the organic halide either alone or in admixture with the organic compound, a reactive section which is heated by said heating means and in which a moving bed of said oxide particles is continuously brought into countercurrent reaction with said feedstock so that the halogen in the organic halide is converted to a calcium halide and/or a barium halide, and an agitating/moving means by which said resulting calcium halide and/or barium halide is continuously discharged to the outside of the reaction system.