公开(公告)号：EP2038604A4

公开(公告)日：2014-08-06

申请号：EP07872521

申请日：2007-06-04

申请人： AREVA NP INC

发明人： WYATT JOSEPH R ,  GRIFFITH JOHN CARROLL ,  NEWMAN VICTOR ,  FLECK JEFFREY M

IPC分类号： G01B7/06

CPC分类号： G01B7/06 ,  G01B7/105 ,  G01B21/042 ,  G01N17/008

公开(公告)号：EP2035903A4

公开(公告)日：2014-01-22

申请号：EP07795574

申请日：2007-05-31

申请人： AREVA NP INC

发明人： POP MIHAI G M ,  GRIFFITH JOHN CARROLL ,  COLGAN KENT

IPC分类号： G05B19/418 ,  F01K13/02 ,  F22B37/00 ,  G06Q10/00 ,  G06Q10/06 ,  G21C9/00 ,  G21C17/00

CPC分类号： F22B37/002 ,  F01K13/02 ,  G06Q10/063 ,  G06Q10/06375 ,  G06Q10/20 ,  Y02P90/14 ,  Y02P90/26 ,  Y02P90/86

摘要： A method to determine corrective actions of a nuclear steam generator, having the steps of modeling of steam generator tube and deposit heat transfer characteristics by analytically deriving specific deposit characteristics and descriptive model parameters, wherein the modeling uses historical thermodynamic data for an operating plant under evaluation, identifying a set of one of preventive and corrective maintenance alternatives to accomplish steam generator deposit objectives, determining through the modeling a power production impact of each of the set of one of preventative and corrective maintenance alternatives to determine an economic cost for each of the set of preventative and corrective maintenance alternatives, and initiating a maintenance alternative with a lowest economic cost as compared to the maintenance evaluation alternatives with higher economic costs.

公开(公告)号：EP2628022A1

公开(公告)日：2013-08-21

申请号：EP11832973.9

申请日：2011-09-20

申请人： Areva NP Inc.

发明人： HOLADAY, Veldon, D. ,  DEVENEY, Richard, C. ,  CHENG, Alexander, Y. ,  DAVIS, John, Wesley ,  STULTS, Dr. W.

IPC分类号： G01T3/00

CPC分类号： G01T3/006 ,  G01T7/005

摘要： The present invention provides a method and an apparatus for calibrating a first self-powered neutron detector for long term use in a nuclear reactor core with a second self-powered neutron detector, where the emitter material of the second self-powered neutron detector has a neutron absorption cross-section that is greater than the neutron absorption cross-section of the first emitter material for the first self-powered neutron detector.

公开(公告)号：EP2153446B1

公开(公告)日：2013-07-24

申请号：EP07852385.9

申请日：2007-06-21

申请人： AREVA NP Inc. ,  AREVA GmbH

发明人： POP, Mihai, G., M. ,  LOCKAMON, Brian, G. ,  SELL, Hans-Jurgen ,  KILIAN, Renate

IPC分类号： G21C17/06 ,  G21C17/10 ,  G01N17/02 ,  G21C17/022

CPC分类号： G21C17/06 ,  G01N17/02 ,  G21C17/022 ,  G21C17/10 ,  G21Y2002/103 ,  G21Y2002/204 ,  G21Y2004/30 ,  G21Y2004/40

公开(公告)号：EP2193524B1

公开(公告)日：2013-05-29

申请号：EP08869404.7

申请日：2008-09-26

申请人： Areva NP Inc.

发明人： STELLWAG, Bernhard ,  POP, Mihai, G.m.

IPC分类号： G21C17/022 ,  G21C19/307 ,  G21D3/08 ,  C23F11/12

CPC分类号： G21C17/0225 ,  C02F1/70 ,  C02F2103/023 ,  C02F2209/04 ,  C02F2303/08 ,  G21C19/307 ,  G21D3/08 ,  G21Y2002/103 ,  G21Y2004/40 ,  Y02E30/39 ,  Y02E30/40

公开(公告)号：EP2027455A4

公开(公告)日：2013-02-20

申请号：EP07867115

申请日：2007-05-09

申请人： AREVA NP INC

发明人： POP MIHAI G M ,  GRIFFITH JOHN CARROLL ,  ALLMON WILLIAM EDWARD ,  LOCKAMON BRIAN GLENN

IPC分类号： G01K17/00 ,  G01N23/225 ,  G21C17/00 ,  G21C17/06

CPC分类号： G21C17/06 ,  G21C17/00

公开(公告)号：EP1745490A4

公开(公告)日：2013-01-23

申请号：EP05758483

申请日：2005-04-18

申请人： AREVA NP INC

发明人： POP MIHAI G M ,  LOCKAMON BRIAN G ,  LAMANNA LAURENCE S ,  WILLSE JOHN T

IPC分类号： G21C19/42 ,  G01N1/04 ,  G01N23/225 ,  G21C17/06

CPC分类号： G21C17/06 ,  G01N1/04 ,  G01N23/225 ,  G01N2001/2873 ,  G21Y2002/201 ,  G21Y2002/303 ,  G21Y2002/304 ,  G21Y2002/501 ,  G21Y2004/40 ,  G21Y2004/501

公开(公告)号：EP2059620B1

公开(公告)日：2013-01-16

申请号：EP07813091.1

申请日：2007-07-19

申请人： Huntington Alloys Corporation ,  Areva NP Inc.

发明人： KISER, Samuel, D. ,  BAKER, Brian, A. ,  WASKEY, David, E.

IPC分类号： C22C19/05 ,  B23K35/30

CPC分类号： C22C19/051 ,  B23K35/304 ,  C22C19/053 ,  Y10T428/12292 ,  Y10T428/12944

公开(公告)号：EP2153446A4

公开(公告)日：2011-11-23

申请号：EP07852385

申请日：2007-06-21

申请人： AREVA NP INC ,  AREVA NP GMBH

发明人： POP MIHAI G M ,  LOCKAMON BRIAN G ,  SELL HANS-JURGEN ,  KILIAN RENATE

IPC分类号： G21C17/06 ,  G01N17/02 ,  G21C17/022 ,  G21C17/10

CPC分类号： G21C17/06 ,  G01N17/02 ,  G21C17/022 ,  G21C17/10 ,  G21Y2002/103 ,  G21Y2002/204 ,  G21Y2004/30 ,  G21Y2004/40

公开(公告)号：EP1851172A4

公开(公告)日：2011-10-26

申请号：EP06849325

申请日：2006-01-12

申请人： IDAHO RES FOUND ,  AREVA NP INC

发明人： WAI CHIEN M ,  KOEGLER SYDNEY S

IPC分类号： C22B60/00 ,  B01D11/02 ,  C22B60/02 ,  C22B60/04 ,  C22B61/00

CPC分类号： C01G43/003 ,  B01D11/0203 ,  B01D11/0284 ,  B01D11/0288 ,  B01D11/0292 ,  C01P2006/80 ,  C22B3/0005 ,  C22B3/02 ,  C22B60/0239 ,  C22B60/026 ,  C22B60/04 ,  G21C19/46 ,  Y02P10/234 ,  Y02P20/544 ,  Y02W30/883

摘要： Embodiments of a method and a system for recovering a metal, such as uranium, from a metal-containing material are disclosed. The metal-containing material is exposed to an extractant containing a liquid or supercritical-fluid solvent and an acid-base complex including an oxidizing agent and a complexing agent. Batches of the metal-containing material are moved through a series of stations while the extractant is moved through the stations in the opposite direction. After the extraction step, the metal is separated from the solvent, the complexing agent and/or other metals by exposing the extract to a stripping agent in a countercurrent stripping column. The complexing agent and the solvent exit the column and are separated from each other by reducing the pressure. The recovered complexing agent is recharged with fresh oxidizing agent and recombined with fresh or recovered solvent to form a recovered extractant, which is distributed through the extraction stations.