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1.发明公开
公开(公告)号：EP3730208A1
公开(公告)日：2020-10-28
申请号：EP20179564.8
申请日：2015-03-09
IPC分类号： B01J2/02
摘要： The present disclosure relates to a process and an apparatus for producing powder particles by atomization of a feed material in the form of an elongated member such as a wire, a rod or a filled tube. The feed material is introduced in a plasma torch. A forward portion of the feed material is moved from the plasma torch into an atomization nozzle of the plasma torch. A forward end of the feed material is surface melted by exposure to one or more plasma jets formed in the atomization nozzle. The one or more plasma jets being includes an annular plasma jet, a plurality of converging plasma jets, or a combination of an annular plasma jet with a plurality of converging plasma jets. Powder particles obtained using the process and apparatus are also described.
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公开(公告)号：EP3314989A1
公开(公告)日：2018-05-02
申请号：EP16816883.9
申请日：2016-06-27
发明人： BOULOS, Maher I. , JUREWICZ, Jerzy W. , DIGNARD, Nicolas , AUGER, Alexandre , THELLEND, Sébastien
IPC分类号： H05H1/26
摘要： An induction plasma torch comprises a tubular torch body, a tubular insert, a plasma confinement tube and an annular channel. The tubular torch body has upstream and downstream sections defining respective inner surfaces. The tubular insert is mounted to the inner surface of the downstream section of the tubular torch body. The plasma confinement tube is disposed in the tubular torch body, coaxial therewith. The plasma confinement tube has a tubular wall having a thickness tapering off in an axial direction of plasma flow. The annular channel is defined between, on one hand, the inner surface of the upstream section of the tubular torch body and an inner surface of the insert and, on the other hand, an outer surface of the tubular wall of the plasma confinement tube. The cooling channel carries a fluid for cooling the plasma confinement tube.
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4.发明授权
公开(公告)号：EP3314989B1
公开(公告)日：2020-05-27
申请号：EP16816883.9
申请日：2016-06-27
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公开(公告)号：EP1567449B1
公开(公告)日：2018-05-02
申请号：EP03779610.9
申请日：2003-12-01
IPC分类号： C01B13/28
CPC分类号： B82Y30/00 , B01J19/088 , B01J19/129 , B01J2219/0871 , B01J2219/0875 , B01J2219/0879 , B01J2219/0894 , C01B13/30 , C01G23/07 , C01G23/075 , C01P2002/50 , C01P2002/52 , C01P2002/72 , C01P2004/64 , C01P2006/12 , C09C1/36 , C09C1/3607 , C09C1/3669 , C22B4/005 , C22B4/08 , C22B34/129
摘要： A process and apparatus for the synthesis of metal oxide nanopowder from a metal compound vapour is presented. In particular a process and apparatus for the synthesis of TiO2 nanopowder from TiCl4 is disclosed. The metal compound vapour is reacted with an oxidizing gas in electrically induced RF frequency plasma thus forming a metal oxide vapour. The metal oxide vapour is rapidly cooled using a highly turbulent gas quench zone which quickly halts the particle growth process, yielding a substantial reduction in the size of metal oxide particles formed compared with known processes. The metal compound vapour can also react with a doping agent to create a doped metal oxide nanopowder. Additionally, a process and apparatus for the inline synthesis of a coated metal oxide is disclosed wherein the metal oxide particles are coated with a surface agent after being cooled in a highly turbulent gas quench zone.
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6.发明公开PROCESS AND APPARATUS FOR PRODUCING POWDER PARTICLES BY ATOMIZATION OF A FEED MATERIAL IN THE FORM OF AN ELONGATED MEMBER 审中-公开方法和设备粉末颗粒的生产由申请材料的细长元件的形式喷涂
公开(公告)号：EP3116636A1
公开(公告)日：2017-01-18
申请号：EP15762350.5
申请日：2015-03-09
IPC分类号： B01J2/02
摘要： The present disclosure relates to a, process and an apparatus for producing powder particles by atomization of a feed material in the form of an elongated member such as a wire, a rod or a filled tube. The feed material is introduced in a plasma torch. A forward portion of the feed material is moved from the plasma torch into an atomization nozzle of the plasma torch. A forward end of the feed material is surface melted by exposure to one or more plasma jets formed in the atomization nozzle. The one or more plasma jets being includes an annular plasma jet, a plurality of converging plasma jets, or a combination of an annular plasma jet with a plurality of converging plasma jets. Powder particles obtained using the process and apparatus are also described.
摘要翻译： 本发明涉及一种方法和装置，用于在细长构件的形式通过进料的雾化生产的粉末颗粒：如金属丝，杆或填充的管。 供给材料在等离子体炬被引入。 供给材料的前部是从该等离子体炬移动到在所述等离子体焰炬的雾化嘴。 进料材料的前端表面通过暴露于在雾化喷嘴形成的一个或多个等离子体射流中熔化。 所述一个或多个等离子体射流的存在包括环形设计等离子体射流，会聚等离子体射流的复数，或环形设计等离子体射流与会聚等离子体射流的多个组合。 粉末颗粒在使用过程中获得，并且因此描述的装置。
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