首页> 外国专利> 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

机译：喷雾热解法制备高表面积的硫酸钡颗粒及包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.

机译：提供通过喷雾热解制备具有高比表面积的硫酸钡颗粒的方法和通过使用包含硫酸钡颗粒的催化剂来分解三氧化硫的方法，以确保优异的热稳定性以及高比表面积。一种通过喷雾热解制备具有高比表面积的硫酸钡颗粒的方法，其包括：第一步，将分散剂分别加入钡前体和硫酸中，制备钡前体溶液和硫酸溶液。第二步，将钡前体溶液和硫酸溶液混合，制备钡前体硫酸盐化合物。第三步，将醇加到钡前体硫酸盐化合物中;第四步，喷雾热解所述混合物以制备硫酸钡颗粒。钡前体选自卤化钡，氢氧化钡和烷氧基钡。

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公开/公告号KR20090081220A

专利类型
公开/公告日2009-07-28

原文格式PDF
申请/专利权人 KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY;
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申请/专利号KR20080007188
发明设计人 YOO KYE SANG;KIM CHANG SOO;GONG GYEONG TAEK;KIM HONG GON;AHN BYOUNG SUNG;JUNG KWANG DEOG;LEE BYUNG GWON;
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申请日2008-01-23
分类号C01F11/46;B01J27/055;B01J23/42;
国家 KR
入库时间 2022-08-21 19:12:54

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