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US7329399: Hydrogen trapper compound, method for the production and uses thereof

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Filing Information

Inventor(s) Sylvie Camaro · Quentin Ragetly · Chantal Riglet-Martial ·
Assignee(s) Commissariat a l'Energie Atomique · Compagnie Generale des Matieres Nucleaires ·
Attorney/Agent(s) Oblon, Spivak, McClelland, Maier & Neustadt, P.C. ·
Primary Examiner Timothy C. Vanoy ·
Application Number US10535190
Filing date 08/25/2004
PCT 371 date 05/17/2005
Issue date 02/12/2008
Prior Publication Data
Predicted expiration date 08/25/2024
U.S. Classifications 423/508  · 588/251  · 423/560  · 423/561.1  · 423/648.1  · 423/248  · 423/658.2  · 588/5  · 588/15  · 588/249  · 423/511  · 588/901  · 106/273.1  · 106/284.3  · 206/7  · 252/181.6  · 252/184  · 252/182.32  · 252/182.33  · 423/509  ·
International Classifications A62D333  · C01B1700  · C01B1900  · C01B350  ·
Kind CodeB2
PCT Application Number WO20PCTFR2004050394 - 08/25/2004
PCT Publication Number WO2005024884 - 03/17/2005
Foreign Priority FR0350475 - 08/29/2003 ·
35 Claims, 1 Drawings


Abstract

A hydrogen-trapping compound is provided, along with a process for manufacturing the compound, and its uses, wherein the hydrogen-trapping compound is characterized in that it contains at least one metal salt of formula MX(OH), in which M represents a divalent transition element, for example Co or Ni; O represents an oxygen atom; X represents an atom of group 16 of the Periodic Table of the Elements, excluding O, for example a sulphur atom; and H represents a hydrogen atom, and wherein the hydrogen-trapping compound is effective for trapping hydrogen, hydrogen within a material and free hydrogen and is applicable in situations in which hydrogen is evolved and in which it has to be trapped, especially for safety reasons.

Independent Claims | See all claims (35)

  1. 1. A process for manufacturing a hydrogen-trapping compound, comprising at least one mineral compound of general formula: MX(OH) wherein: M represents a divalent transition element; O represents an oxygen atom; X represents an atom of group 16 of the Periodic Table of the Elements, excluding O; and H represents a hydrogen atom, comprising: mixing, in aqueous solution, at least one dissolved salt of dissolved X2− and at least one dissolved metal salt of M forming a precipitate of the at least one mineral compound of the formula MX(OH); wherein the precipitate is suspended in the aqueous phase.
  2. 11. A method of encapsulating a solid waste comprising: a) encapsulating the solid waste and a hydrogen-trapping compound, comprising at least one mineral compound of general formula: MX(OH) wherein: M represents a divalent transition element; O represents an oxygen atom: X represents an atom of group 16 of the Periodic Table of the Elements, excluding O: and H represents a hydrogen atom, with an organic encapsulation material to form an encapsulant; wherein prior to encapsulation the solid waste, the hydrogen-trapping compound, and the organic encapsulation material are heated; and wherein prior to encapsulation the organic encapsulation material is liquefied; b) cooling the encapsulant; and c) solidifying the encapsulant.
  3. 22. An organic material for encapsulating radioactive waste, comprising an organic encapsulation material and at least one hydrogen-trapping compound, comprising at least one mineral compound of general formula: MX(OH) wherein: M represents a divalent transition element; O represents an oxygen atom; X represents an atom of group 16 of the Periodic Table of the Elements, excluding O; and H represents a hydrogen atom.
  4. 29. A method for trapping hydrogen comprising contacting the hydrogen with at least one mineral compound of general formula: MX(OH) wherein: M represents a divalent transition element; O represents an oxygen atom; X represents an atom of group 16 of the Periodic Table of the Elements, excluding O; and H represents a hydrogen atom.

References Cited

U.S. Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
US4717510* United Kingdom Atomic Energy Authority James Jan 1988
US5141610* VAUGHAN DANIEL J Vaughan Aug 1992
US5700443* Canon Kabushiki Kaisha Yamamoto et al. Dec 1997
US5888665 California Institute of Technology Bugga et al. Mar 1999
US6616738* The Japan Steel Works, Ltd. Iwamoto et al. Sep 2003
US6708546* Texaco Ovonic Hydrogen Systems LLC Myasnikov et al. Mar 2004
US6709497* Texaco Ovonic Hydrogen Systems LLC Myasnikov et al. Mar 2004
US20030136989 SAES Getters S.p.A. Amiotti Jul 2003

Foreign Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
IT1318392GETTERS SPAAug 2003
JP10255660COMMISS ENERG ATOMSep 1998
JP02980425Nov 1999
WO199726082Jul 1997
WO200168516SAES GETTERS S.P.A.Sep 2001
* cited by examiner

Other Publications

The English abstract of the reference titled “Investigation of the interaction between Co sulfide coatings and Cu(I) ions by cyclic voltammetry and XPS” by Valiuliene et al., Journal of Solid State Electrochemistry vol. 6 No. 6 pp. 396-402 (2002).*
The English abstract of the reference titled “ERDA analysis of ZnSx(OH)y thin films obtained by chemical bath deposition” by Sven Neve et al., Materials Research Society Symposium Proceedings, 668 (II-VI Compound Semiconductor Photovoltaic Materials), H5.3/1—H5.3/6 (2001)., Publisher: Materials Research Society, ISSN 0272-9172.*
The English abstract of the reference titled “A simple absorptiometric for determination of small amounts of sulfide ion” by S. A. Rahim et al., Bulletin of the College of Science, University of Baghdad, 12-13, pp. 130-138 (1973), ISSN 0408-1927.*
Christelle Sing-Teniere: “Etude des procedes de stabilisation/solidification des dechets solides poreux a base de liants hydrauliques ou de liants bitumineux”, [Study of stabilization/solidification processes for porous solid waste based on hydraulic binders or bituminous binders], Thesis, Lyons National Institute of Applied Sciences, Feb. 24, 1988.
* cited by examiner