A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
POROUS GRANULATED CALCINATION PRODUCT AND PRODUCTION METHOD THEREOF
PROBLEM TO BE SOLVED: To provide an alumina porous granulated calcination product that has a large specific surface area as well as an additional high-strength in the same specific surface area, produced by a simple method.SOLUTION: The porous granulated calcination product is produced by firmly connecting innumerable alumina particles while leaving mainly communicated pores in a network-like state over the whole cross-section of granulated product particle; the pore is controlled in the inner diameter by the droplet size of pore-forming agent as well as the pore has innumerable alumina deposition crystals over the inner surface thereof; and a pore-forming agent (emulsion) is sprayed on the raw material and a coating layer of pore-forming agent is formed over the surface of raw material particles to control the inner diameter of pore.
【課題】簡単な方法により、大きな比表面積を有するともに、同一比表面積においてさらなる高強度を有する、アルミナの多孔質造粒焼成体を提供すること。【解決手段】無数のアルミナ粒子同士が、主として連通する気孔を造粒体粒子の断面全体に網目状に残存させて固結してなる多孔質造粒焼成体。気孔は、その内径が気孔形成剤の液滴径で制御されているとともに、その内面に無数のアルミナ析出結晶を有している。気孔形成剤（エマルション）を原料に対して噴霧し、気孔形成剤の被覆層を原料粒子の表面に形成して、気孔の内径を制御する。【選択図】図１
POROUS GRANULATED CALCINATION PRODUCT AND PRODUCTION METHOD THEREOF
PROBLEM TO BE SOLVED: To provide an alumina porous granulated calcination product that has a large specific surface area as well as an additional high-strength in the same specific surface area, produced by a simple method.SOLUTION: The porous granulated calcination product is produced by firmly connecting innumerable alumina particles while leaving mainly communicated pores in a network-like state over the whole cross-section of granulated product particle; the pore is controlled in the inner diameter by the droplet size of pore-forming agent as well as the pore has innumerable alumina deposition crystals over the inner surface thereof; and a pore-forming agent (emulsion) is sprayed on the raw material and a coating layer of pore-forming agent is formed over the surface of raw material particles to control the inner diameter of pore.
【課題】簡単な方法により、大きな比表面積を有するともに、同一比表面積においてさらなる高強度を有する、アルミナの多孔質造粒焼成体を提供すること。【解決手段】無数のアルミナ粒子同士が、主として連通する気孔を造粒体粒子の断面全体に網目状に残存させて固結してなる多孔質造粒焼成体。気孔は、その内径が気孔形成剤の液滴径で制御されているとともに、その内面に無数のアルミナ析出結晶を有している。気孔形成剤（エマルション）を原料に対して噴霧し、気孔形成剤の被覆層を原料粒子の表面に形成して、気孔の内径を制御する。【選択図】図１
POROUS GRANULATED CALCINATION PRODUCT AND PRODUCTION METHOD THEREOF
多孔質造粒焼成体及びその製造方法
TAKAHASHI AKIRA (author) / SHIMOZATO JUNYA (author) / NAKAMURA TAKAHIKO (author) / TAMURA NORIYUKI (author)
2015-06-08
Patent
Electronic Resource
Japanese
POROUS GRANULATED CALCINATION PRODUCT AND PRODUCTION METHOD THEREOF
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