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公开(公告)号：US20250059059A1
公开(公告)日：2025-02-20
申请号：US18937721
申请日：2024-11-05
Inventor： TAKESHI KOIWASAKI , HISAO NAGAI , HIROKI MARUYAMA
IPC: C01G23/047 , C08K3/22
Abstract: A method of manufacturing a composite particle includes: a step of preparing a first raw material including an element selected from any of copper, molybdenum, and silver, and a second raw material including one or more types of elements selected from aluminum, titanium, zirconium, hafnium, iron, yttrium, niobium, tantalum, silicon, calcium, magnesium, tungsten, indium, tin, germanium, nickel, zinc, and molybdenum; and a thermal plasma evaporation and cooling step of introducing the prepared first and second raw materials into thermal plasma to evaporate the first raw materials, and cooling the evaporated first raw materials to generate a composite particle. The composite particle includes the second raw material, and a fine particle carried on a surface of the second raw material and generated from the first raw material having an average particle size of 0.5 nm or more and 300 nm or less.
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2.发明公开公开(公告)号：US20230331573A1
公开(公告)日：2023-10-19
申请号：US18337804
申请日：2023-06-20
Inventor： HISAO NAGAI , HIROKI MARUYAMA , TAKESHI KOIWASAKI , TAKAFUMI OKUMA
CPC classification number: C01F11/04 , C08K7/18 , C01P2004/51 , C01P2004/64 , C01P2004/62 , C01P2006/12 , C08K2201/005 , C08K2201/006
Abstract: A method for producing a fine-particle powder containing calcium oxide or calcium hydroxide includes: preparing a pulverized powder of shells or eggshells; introducing the pulverized powder of shells or eggshells into a controlled atmosphere, vaporizing the pulverized powder under thermal plasma and then solidifying the pulverized powder in a gas phase to produce fine particles containing calcium oxide or calcium hydroxide; and collecting a powder of the fine particles containing calcium oxide or calcium hydroxide produced with the thermal plasma.
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