公开(公告)号：US10600521B2

公开(公告)日：2020-03-24

申请号：US15529171

申请日：2015-11-24

Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES

Inventor： Arnaud Benedetti ,  Philippe Sornay ,  Meryl Brothier

IPC: G21C21/02 ,  G21C21/04 ,  G21C3/04

Abstract: A device for transferring a given powder or a mixture of given powders contained in a container including a side wall and at least one discharge opening, the container with axisymmetric shape having an axis of rotation being arranged in the transfer device such that the discharge opening thereof is located in a lower portion of the container, the transfer device including rotating the container about the axis thereof, on which the discharge opening is located and control for controlling the rotation such that the to rotation imposes on at least one portion of the side wall of the container, referred to as movable portion, a first moving phase wherein an acceleration no lower than a minimum acceleration is capable of causing the powder to slide relative to the movable portion.

公开(公告)号：US09394422B2

公开(公告)日：2016-07-19

申请号：US14399958

申请日：2013-05-07

Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES

Inventor： Julien Bricout ,  Meryl Brothier ,  Pierre Matheron ,  Carine Ablitzer ,  Jean-Claude Gelin

IPC: C08K3/22 ,  G21C3/42 ,  C08L91/08 ,  G21C3/58 ,  C08K5/01 ,  C08K5/09

CPC classification number: C08K3/22 ,  C08K3/08 ,  C08K5/01 ,  C08K5/09 ,  C08L23/02 ,  C08L23/06 ,  C08L23/12 ,  C08L91/08 ,  G21C3/42 ,  G21C3/58 ,  Y02E30/38

Abstract: A composition filled with actinide powder, comprising an organic matrix and an actinide powder or a mixture of actinide powders, comprises at least: a plasticizer comprising an alkane whose longest radical chain comprises at least a few tens of carbon atoms and is in a volume content of between 20% and 70% of the total volume of the organic compounds alone; a binder comprising at least one polyolefinic polymer and which is in a volume content of between 20% and 50% of the total volume of the organic compounds alone; a dispersant comprising a carboxylic acid or salts thereof, the volume content of which is less than 10% of the total volume of the organic compounds alone; said actinide powder or said mixture of actinide powders represent between 40% and 65% of the volume of the filled matrix.

Abstract translation: 填充有锕系粉末的组合物，其包含有机基质和锕系粉末或锕系粉末的混合物，其至少包含：包含最长自由基链包含至少几十个碳原子并且体积含量的烷烃的增塑剂 仅占有机化合物总体积的20％至70％; 包含至少一种聚烯烃聚合物的粘合剂，其体积含量为单独的有机化合物总体积的20％至50％; 包含羧酸或其盐的分散剂，其体积含量小于单独的有机化合物总体积的10％; 所述锕系粉末或所述锕系粉末的混合物占填充基体体积的40％至65％。

公开(公告)号：US20170225956A1

公开(公告)日：2017-08-10

申请号：US15501964

申请日：2015-08-06

Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES

Inventor： Alvaro Saravia ,  Xavier Deschanels ,  Stéphanie Szenknect ,  Meryl Brothier ,  Olivier Fiquet

IPC: C01G56/00

CPC classification number: C01B32/90 ,  C01B32/907 ,  C01B32/914 ,  C01B32/921 ,  C01B32/928 ,  C01P2004/03

Abstract: The present invention relates to a method for preparation of a powder comprising at least one carbide of at least one metal, comprising the steps consisting of: (a) preparing a solution comprising at least one organic gelling agent and at least one inorganic salt of at least one metal in a solvent; (b) modifying the pH of the solution prepared in step (a) in such a way as to precipitate said at least one metal and to obtain a colloidal suspension comprising nanoparticles of oxyhydroxides of said at least one metal; (c) removing the solvent from the colloidal suspension obtained in step (b) by which means a precursor of at least one carbide of at least one metal is obtained; and (d) subjecting the precursor obtained in step (c) to a thermal treatment in order to transform same into a powder comprising at least one carbide of at least one metal. The present invention also relates to the powder thus prepared and the various uses thereof.