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    Process for the synthesis, separation and purification of powder materials
    1.
    发明申请
    Process for the synthesis, separation and purification of powder materials 有权
    粉末材料的合成，分离和纯化工艺

    公开(公告)号：US20070130656A1

    公开(公告)日：2007-06-07

    申请号：US10569916

    申请日：2004-08-19

    Applicant: Maher Boulos ,  Christine Nessim ,  Christian Normand ,  Jerzy Jurewicz

    Inventor： Maher Boulos ,  Christine Nessim ,  Christian Normand ,  Jerzy Jurewicz

    IPC: B01J8/02

    CPC classification number: B01J19/088 ,  B01J2/04 ,  B01J19/10 ,  B01J2219/0869 ,  B01J2219/0871 ,  B01J2219/0877 ,  B01J2219/0879 ,  B01J2219/0898 ,  B22F1/0081 ,  B22F2998/00 ,  B22F1/0018

    Abstract: The invention concerns a process for the spheroidisation, densification and purification of powders through the combined action of plasma processing, and ultra-sound treatment of the plasma-processed powder. The ultra-sound treatment allows for the separation of the nanosized condensed powder, referred to as ‘soot’, from the plasma melted and partially vaporized powder. The process can also be used for the synthesis of nanopowders through the partial vaporization of the feed material, followed by the rapid condensation of the formed vapour cloud giving rise to the formation of a fine aerosol of nanopowder. In the latter case, the ultra-sound treatment step serves for the separation of the formed nanopowder form the partially vaporized feed material.

    Abstract translation: 本发明涉及通过等离子体处理和等离子体处理的粉末的超声处理的组合作用，粉末的球化，致密化和净化的方法。 超声处理允许从等离子体熔融和部分蒸发的粉末中分离被称为“烟灰”的纳米级浓缩粉末。 该方法也可用于通过进料的部分蒸发来合成纳米粉末，随后形成的蒸汽云的快速冷凝导致形成纳米粉末的细小气溶胶。 在后一种情况下，超声处理步骤用于分离形成的部分蒸发的进料的纳米粉末。

    PLASMA SYNTHESIS OF NANOPOWDERS
    3.
    发明申请
    PLASMA SYNTHESIS OF NANOPOWDERS 有权
    纳米粒子的等离子体合成

    公开(公告)号：US20070221635A1

    公开(公告)日：2007-09-27

    申请号：US11683792

    申请日：2007-03-08

    Applicant: Maher Boulos ,  Jerzy Jurewicz ,  Jiayin Guo ,  Xiaobao Fan ,  Nicolas Dignard

    Inventor： Maher Boulos ,  Jerzy Jurewicz ,  Jiayin Guo ,  Xiaobao Fan ,  Nicolas Dignard

    IPC: B23K9/00

    CPC classification number: H05H1/42 ,  B22F9/12 ,  B22F2202/13

    Abstract: A process and apparatus for preparing a nanopowder are presented. The process comprises feeding a reactant material into a plasma reactor in which is generated a plasma flow having a temperature sufficiently high to vaporize the material; transporting the vapour by means of the plasma flow into a quenching zone; injecting a preheated quench gas into the plasma flow in the quenching zone to form a renewable gaseous condensation front; and forming a nanopowder at the interface between the renewable controlled temperature gaseous condensation front and the plasma flow.

    Abstract translation: 提出了一种制备纳米粉末的方法和装置。 该方法包括将反应物材料进料到等离子体反应器中，在等离子体反应器中产生具有足够高的气体以蒸发材料的等离子体流; 通过等离子体流将蒸气输送到淬火区; 将预热的骤冷气体注入淬火区域中的等离子体流中以形成可再生气态冷凝前沿; 并在可再生的受控温度的气体冷凝前沿和等离子体流之间的界面处形成纳米粉末。

    Multi-coil induction plasma torch for solid state power supply
    4.
    发明授权
    Multi-coil induction plasma torch for solid state power supply 有权
    用于固态电源的多线圈感应等离子体焰炬

    公开(公告)号：US06919527B2

    公开(公告)日：2005-07-19

    申请号：US10749373

    申请日：2004-01-02

    Applicant: Maher Boulos ,  Jerzy Jurewicz

    Inventor： Maher Boulos ,  Jerzy Jurewicz

    IPC: G01N21/73 ,  H05H1/00 ,  H05H1/30 ,  B23K10/00

    CPC classification number: H05H1/30

    Abstract: An induction plasma torch comprises a tubular torch body, a gas distributor head located at the proximal end of the torch body for supplying at least one gaseous substance into the chamber within the torch body, a higher frequency power supply connected to a first induction coil mounted coaxial to the tubular torch body, a lower frequency solid state power supply connected to a plurality of second induction coils mounted coaxial to the tubular torch body between the first induction coil and the distal end of this torch body. The first induction coil provides the inductive energy necessary to ignite the gaseous substance to form a plasma. The second induction coils provide the working energy necessary to operate the plasma torch. The second induction coils can be connected to the solid state power supply in series and/or in parallel to match the impedance of this solid state power supply.

    Abstract translation: 感应等离子体焰炬包括管状炬体，位于炬体本体的近端处的气体分配器头，用于将至少一种气态物质供应到炬体内的腔室中;更高频率的电源，连接到第一感应线圈安装 与管状割炬本体同轴的低频固态电源，连接到多个第二感应线圈，该多个第二感应线圈与第一感应线圈和该割炬本体的远端之间的管状割炬本体同轴安装。 第一感应线圈提供点燃气态物质形成等离子体所需的感应能量。 第二感应线圈提供操作等离子体焰炬所需的工作能量。 第二感应线圈可以串联和/或并联连接到固态电源以匹配该固态电源的阻抗。

    Multi-coil induction plasma torch for solid state power supply
    5.
    发明授权
    Multi-coil induction plasma torch for solid state power supply 有权
    用于固态电源的多线圈感应等离子体焰炬

    公开(公告)号：US06693253B2

    公开(公告)日：2004-02-17

    申请号：US10265586

    申请日：2002-10-08

    Applicant: Maher Boulos ,  Jerzy Jurewicz

    Inventor： Maher Boulos ,  Jerzy Jurewicz

    IPC: B23K1000

    CPC classification number: H05H1/30

    Abstract: An induction plasma torch comprises a tubular torch body, a gas distributor head located at the proximal end of the torch body for supplying at least one gaseous substance into the chamber within the torch body, a higher frequency power supply connected to a first induction coil mounted coaxial to the tubular torch body, a lower frequency solid state power supply connected to a plurality of second induction coils mounted coaxial to the tubular torch body between the first induction coil and the distal end of this torch body. The first induction coil provides the inductive energy necessary to ignite the gaseous substance to form a plasma. The second induction coils provide the working energy necessary to operate the plasma torch. The second induction coils can be connected to the solid state power supply in series and/or in parallel to match the impedance of this solid state power supply.

    Abstract translation: 感应等离子体焰炬包括管状炬体，位于炬体本体的近端处的气体分配器头，用于将至少一种气态物质供应到炬体内的腔室中;更高频率的电源，连接到第一感应线圈安装 与管状割炬本体同轴的低频固态电源，连接到多个第二感应线圈，该多个第二感应线圈与第一感应线圈和该割炬本体的远端之间的管状割炬本体同轴安装。 第一感应线圈提供点燃气态物质形成等离子体所需的感应能量。 第二感应线圈提供操作等离子体焰炬所需的工作能量。 第二感应线圈可以串联和/或并联连接到固态电源以匹配该固态电源的阻抗。

    Method and apparatus for treating a surface of granite with a high temperature plasma jet
    6.
    发明授权
    Method and apparatus for treating a surface of granite with a high temperature plasma jet 失效
    用高温等离子体喷射处理花岗岩表面的方法和装置

    公开(公告)号：US5211156A

    公开(公告)日：1993-05-18

    申请号：US775976

    申请日：1991-11-01

    Applicant: Jerzy Jurewicz ,  Maher Boulos ,  Clermont Roy

    Inventor： Jerzy Jurewicz ,  Maher Boulos ,  Clermont Roy

    IPC: B28D1/00 ,  C04B41/00 ,  C04B41/53 ,  E01C23/08

    CPC classification number: E01C23/081 ,  B28D1/00 ,  C04B41/53

    Abstract: The method and apparatus treat a surface of natural rock or artificial stone-like material to give to this surface an attractive finish. A high temperature jet of plasma and a high speed jet of cooling fluid are projected onto the surface to be treated. The two jets are moved on the surface at a given speed with the jet of cooling fluid following the plasma jet. The speed of movement is selected so that the high temperature plasma jet heats only a thin superficial layer of rock or stone-like material. As the jet of cooling fluid follows the jet of plasma, it suddenly cools the thin superficial layer just heated by the plasma jet to cause a thermal shock which bursts particles of rock or stone-like material at the surface thereof, and blows these particles off the rock surface.

    Abstract translation: PCT No.PCT / CA90 / 00144 Sec。 371日期1991年11月1日 102（e）1991年11月1日日期PCT提交1990年5月1日PCT公布。 出版物WO90 / 13406 日期1990年11月15日。方法和设备处理天然岩石或人造石材料的表面给予该表面有吸引力的表面。 将等离子体的高温射流和冷却流体的高速射流投影到待处理的表面上。 随着等离子体射流之后的冷却流体射流，两个射流以给定速度在表面上移动。 选择运动速度，使得高温等离子体射流仅加热岩石或石头状材料的薄表层。 随着冷却流体射流跟随等离子体射流，它突然冷却刚被该等离子体射流加热的薄的表面层，引起热冲击，在其表面破裂岩石或石头状物质的颗粒，并将这些颗粒吹走 岩石表面。

    Induction plasma synthesis of nanopowders
    7.
    发明申请
    Induction plasma synthesis of nanopowders 有权
    纳米粉末的感应等离子体合成

    公开(公告)号：US20070029291A1

    公开(公告)日：2007-02-08

    申请号：US11341211

    申请日：2006-01-27

    Applicant: Maher Boulos ,  Jerzy Jurewicz ,  Jiayin Guo

    Inventor： Maher Boulos ,  Jerzy Jurewicz ,  Jiayin Guo

    IPC: B23K9/00 ,  B23K9/02

    CPC classification number: C01G17/02 ,  B01J19/088 ,  B01J2219/0871 ,  B01J2219/0875 ,  B01J2219/0877 ,  B01J2219/0879 ,  B01J2219/0894 ,  B22F9/12 ,  B22F2999/00 ,  B82Y30/00 ,  C01B13/30 ,  C01B32/956 ,  C01G1/00 ,  C01G1/02 ,  C01P2004/64 ,  C01P2006/12 ,  H05H1/30 ,  B22F2202/13

    Abstract: A process and apparatus for synthesizing a nanopowder is presented. In particular, a process for the synthesis of nanopowders of various materials such as metals, alloys, ceramics and composites by induction plasma technology, using organometallic compounds, chlorides, bromides, fluorides, iodides, nitrites, nitrates, oxalates and carbonates as precursors is disclosed. The process comprises feeding a reactant material into a plasma torch in which is generated a plasma flow having a temperature sufficiently high to yield a superheated vapour of the material; transporting said vapour by means of the plasma flow into a quenching zone; injecting a cold quench gas into the plasma flow in the quenching zone to form a renewable gaseous cold front; and forming a nanopowder at the interface between the renewable gaseous cold front and the plasma flow.

    Abstract translation: 提出了一种用于合成纳米粉末的方法和装置。 具体地，公开了通过使用有机金属化合物，氯化物，溴化物，氟化物，碘化物，亚硝酸盐，硝酸盐，草酸盐和碳酸盐作为前体，通过感应等离子体技术合成各种材料的纳米粉末的方法，例如金属，合金，陶瓷和复合材料 。 该方法包括将反应物材料进料到等离子体焰炬中，其中产生具有足够高的温度以产生材料的过热蒸气的等离子体流; 通过等离子体流将所述蒸气输送到淬火区域; 将淬火气体注入淬火区域中的等离子体流中以形成可再生气态冷锋; 以及在可再生气态冷锋和等离子体流之间的界面处形成纳米粉末。

    Process of depositing particulate material on a substrate
    9.
    发明授权
    Process of depositing particulate material on a substrate 失效
    将颗粒材料沉积在基材上的工艺

    公开(公告)号：US4853250A

    公开(公告)日：1989-08-01

    申请号：US192702

    申请日：1988-05-11

    Applicant: Maher Boulos ,  Jerzy Jurewicz

    Inventor： Maher Boulos ,  Jerzy Jurewicz

    IPC: C23C4/12 ,  H05H1/42

    CPC classification number: C23C4/12 ,  H05H1/42

    Abstract: The invention relates to a process and an apparatus for the plasma deposition of protective coatings and near net shape bodies using induction plasma technology. The apparatus comprises an induction plasma torch in which the particulate material to be deposited is accelerated and injected axially into the discharge. As the particles traverse the plasma they are heated and melted before being deposited by impaction on the substrate placed at the downstream end of the plasma torch facing the plasma jet.

    Abstract translation: 本发明涉及一种使用感应等离子体技术等离子体沉积保护涂层和近净体形体的方法和装置。 该装置包括感应等离子体焰炬，其中要沉积的颗粒材料被加速并轴向注入到排出口中。 当粒子穿过等离子体时，它们被加热和熔化，然后通过冲击沉积在位于等离子体焰炬面向等离子体射流的下游端的衬底上。

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