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PREPARATION OF BARIUM SULFATE PARTICLE WITH HIGH SURFACE AREA BY SPRAY PYROLYSIS, AND METHOD FOR DECOMPOSITION OF SULFUR?TRIOXIDE BY USING BARIUM SULFATE CATALYST COMPRISING THE BARIUM SULFATE PARTICLES
PREPARATION OF BARIUM SULFATE PARTICLE WITH HIGH SURFACE AREA BY SPRAY PYROLYSIS, AND METHOD FOR DECOMPOSITION OF SULFUR?TRIOXIDE BY USING BARIUM SULFATE CATALYST COMPRISING THE BARIUM SULFATE PARTICLES
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机译:喷雾热解法制备高表面积硫酸钡颗粒及使用含硫酸钡颗粒的硫酸钡催化剂分解三氧化二硫的方法
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摘要
A method for preparing barium sulfate particles with high specific surface area by spray pyrolysis and a method for decomposing sulfur trioxide by using a catalyst comprising the barium sulfate particles are provided to secure excellent thermal stability as well as high specific surface area. A method for preparing barium sulfate particles with high specific surface area by spray pyrolysis comprises: a first step of adding a dispersing agent to a barium precursor and a sulfuric acid respectively to prepare a barium precursor solution and a sulfuric acid solution; a second step of mixing the barium precursor solution and the sulfuric acid solution to prepare a barium precursor-sulfate compound; a third step of adding alcohol to the barium precursor-sulfate compound; and a fourth step of spray pyrolyzing the mixture to prepare barium sulfate particles. The barium precursor is selected from the group consisting of barium halide, barium hydroxide and barium alkoxide.
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