COMPOSITE PARTICLES

PROBLEM TO BE SOLVED: To obtain composite particles which are not poisoned and are excellent in production efficiency by coating the entire surfaces of core particles with coating layers so that the layers do not fall. SOLUTION: The composite particles are obtd. by forming coating layers of an inorg...

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Bibliographische Detailangaben
Hauptverfasser:	TANAKA TOSHIYUKI, TAKAHASHI NAOKI, MATSUOKA SERIKO, AKIMOTO YUSUKE, KAMITORI TOSHIO, SUDA AKIHIKO, TERAO NAOHIRO, KIMURA MAREO, SOFUGAWA HIDEO
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To obtain composite particles which are not poisoned and are excellent in production efficiency by coating the entire surfaces of core particles with coating layers so that the layers do not fall. SOLUTION: The composite particles are obtd. by forming coating layers of an inorg. material on the surfaces of core particles and the coating layers have rugged surfaces having 1-50 nm surface roughness. Coating layers of zirconia having 0.5-50 nm thickness or sulfur-free aluminous coating layers having 0.5-50 nm thickness are formed on the surfaces of the core particles.