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Extract from the Register of European Patents

EP About this file: EP1997919

EP1997919 - Method of recovering zinc- and sulphate-rich residue [Right-click to bookmark this link]
StatusThe application is deemed to be withdrawn
Status updated on  30.10.2009
Database last updated on 19.10.2024
Most recent event   Tooltip30.10.2009Application deemed to be withdrawnpublished on 02.12.2009  [2009/49]
Applicant(s)For all designated states
PAUL WURTH S.A.
32 rue d'Alsace
1122 Luxembourg / LU
[2008/49]
Inventor(s)01 / Roth, Jean-Luc
17, rue des Glacis
57100 Thionville / FR
02 / Bontemps, Marie
Rue de Neudorf, 128
2222 Luxembourg / LU
 [2008/49]
Representative(s)Office Freylinger
P.O. Box 48
8001 Strassen / LU
[2009/27]
Former [2008/49]Kihn, Pierre Emile Joseph, et al
Office Ernest T. Freylinger S.A. 234, route d'Arlon B.P. 48
8001 Strassen / LU
Application number, filing date07108864.524.05.2007
[2008/49]
Filing languageFR
Procedural languageFR
PublicationType: A1 Application with search report 
No.:EP1997919
Date:03.12.2008
Language:FR
[2008/49]
Search report(s)(Supplementary) European search report - dispatched on:EP27.12.2007
ClassificationIPC:C22B19/00
[2008/49]
CPC:
C22B7/002 (EP,US); C22B19/00 (KR); C22B1/04 (EP,US);
C22B19/22 (EP,US); C22B19/30 (EP,US); C22B5/10 (EP,US);
C22B5/16 (EP,US); Y02P10/20 (EP,US) (-)
Designated contracting states(deleted) [2009/33]
Former [2008/49]AT,  BE,  BG,  CH,  CY,  CZ,  DE,  DK,  EE,  ES,  FI,  FR,  GB,  GR,  HU,  IE,  IS,  IT,  LI,  LT,  LU,  LV,  MC,  MT,  NL,  PL,  PT,  RO,  SE,  SI,  SK,  TR 
TitleGerman:Verfahren zur Verwertung von Rückständen, die reich an Zink und Sulfaten sind[2008/49]
English:Method of recovering zinc- and sulphate-rich residue[2008/49]
French:Procédé de valorisation de résidus riches en zinc et en sulfates[2008/49]
Examination procedure04.06.2009Application deemed to be withdrawn, date of legal effect  [2009/49]
15.07.2009Despatch of communication that the application is deemed to be withdrawn, reason: examination fee not paid in time  [2009/49]
Fees paidPenalty fee
Additional fee for renewal fee
31.05.200903   M06   Not yet paid
Opt-out from the exclusive  Tooltip
competence of the Unified
Patent Court		 See the Register of the Unified Patent Court for opt-out data
Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Documents cited:Search[DA]US4072503  (PETTERSON STIG ARVID, et al) [DA] 1-11 * column 3, line 7 - line 22; claims 1-13 *;
 [A]FR2463189  (METALLURGIE HOBOKEN [BE]) [A] 1-11 * page 1, line 4 - page 2, line 15; claims 1-12 *;
 [DA]US4415540  (WILKOMIRSKY IGOR A E [CA], et al) [DA] 1-11 * column 2, line 63 - column 3, line 35; claims 1-5 *;
 [DA]WO02068700  (WURTH PAUL SA [LU], et al) [DA] 1-11 * page 4; claims 1-14 *;
 [DA]WO2005005674  (UMICORE NV [BE], et al) [DA] 1-11 * page 3, line 1 - line 19; claims 1-12 *;
 [A]  - HONG LAN ET AL, "Kinetics of carbothermic reduction of magnesia and zinc oxide by thermogravimetric analysis technique", SCAND J METALL; SCANDINAVIAN JOURNAL OF METALLURGY JUNE 2003, (200306), vol. 32, no. 3, pages 171 - 176, XP002461409 [A] 1-11 * page 171 - page 172, column L * * paragraph [CONCLUSIONS] *

DOI:   http://dx.doi.org/10.1034/j.1600-0692.2003.00639.x
 [A]  - YOUCAI ZHAO ET AL, "Extraction of zinc from zinc ferrites by fusion with caustic soda", MINERALS ENG; MINERALS ENGINEERING NOV 2000 ELSEVIER SCIENCE LTD, EXETER, ENGL, (200011), vol. 13, no. 13, pages 1417 - 1421, XP002461196 [A] 1-11 * page 1418, paragraph 2 * * page 1419, paragraph 1 * * paragraph [CONCLUSIONS] *

DOI:   http://dx.doi.org/10.1016/S0892-6875(00)00123-0
 [A]  - TURAN M D ET AL, "Recovery of zinc and lead from zinc plant residue", HYDROMETALLURGY, ELSEVIER SCIENTIFIC PUBLISHING CY. AMSTERDAM, NL, (200411), vol. 75, no. 1-4, ISSN 0304-386X, pages 169 - 176, XP004615710 [A] 1-11 * paragraphs [2.3.ROASTING.OFZPR] - [H2SO4.MIXTURE] *
 [A]  - LECLERC N ET AL, "Hydrometallurgical extraction of zinc from zinc ferrites", HYDROMETALLURGY, ELSEVIER SCIENTIFIC PUBLISHING CY. AMSTERDAM, NL, (200307), vol. 70, no. 1-3, ISSN 0304-386X, pages 175 - 183, XP004427444 [A] 1-11 * abstract * * paragraph [INTRODUCTION] *

DOI:   http://dx.doi.org/10.1016/S0304-386X(03)00079-3
 [A]  - RAGHAVAN R ET AL, "Innovative processing technique to produce zinc concentrate from zinc leach residue with simultaneous recovery of lead and silver", HYDROMETALLURGY, ELSEVIER SCIENTIFIC PUBLISHING CY. AMSTERDAM, NL, (199804), vol. 48, no. 2, ISSN 0304-386X, pages 225 - 237, XP004127899 [A] 1-11 * abstract * * paragraph [INTRODUCTION] *

DOI:   http://dx.doi.org/10.1016/S0304-386X(97)00082-0
 [A]  - RAGHAVAN R ET AL, "Hydrometallurgical processing of lead-bearing materials for the recovery of lead and silver as lead concentrate and lead metal", HYDROMETALLURGY, ELSEVIER SCIENTIFIC PUBLISHING CY. AMSTERDAM, NL, (20001201), vol. 58, no. 2, ISSN 0304-386X, pages 103 - 116, XP004218189 [A] 1-11 * abstract * * paragraph [INTRODUCTION] *

DOI:   http://dx.doi.org/10.1016/S0304-386X(00)00108-0
 [A]  - YOUCAI ZHAO ET AL, "Integrated hydrometallurgical process for production of zinc from electric arc furnace dust in alkaline medium", J HAZARD MATER; JOURNAL OF HAZARDOUS MATERIALS DEC 2000 ELSEVIER SCIENCE PUBLISHERS B.V., AMSTERDAM, NETHERLANDS, (200012), vol. 80, no. 1-3, pages 223 - 240, XP002461410 [A] 1-11 * paragraph [CONCLUSIONS] * * abstract *

DOI:   http://dx.doi.org/10.1016/S0304-3894(00)00305-8
 [A]  - ROTH J L ET AL, "PRIMUS, A NEW PROCESS FOR RECYCLING BY-PRODUCTS AND PRODUCING VIRGIN IRON PRIMUS, UN NOUVEAU PROCEDE POUR LE RECYCLAGE DES COPRODUITS ET LA PRODUCTION DE FONTE", CAHIERS D'INFORMATIONS TECHNIQUES DE LA REVUE DE METALLURGIE, REVUE DE METALLURGIE. PARIS, FR, (200111), vol. 98, no. 11, ISSN 0035-1563, pages 987 - 996, XP001101771 [A] 1-11 * the whole document *

DOI:   http://dx.doi.org/10.1051/metal:2001140
 [A]  - HANSMANN T, "PRIMUS - EIN NEUES VERFAHREN FUER DAS RECYCLING VON HUETTENWERKSRESTSTOFFEN UND DIE EISENERZ-REDUKTION PRIMUS - A NEW PROCESS FOR THE RECYCLING OF BY-PRODUCTS AND THE PREREDUCTION OF IRON ORE", STAHL UND EISEN, VERLAG STAHLEISEN, DUSSELDORF, DE, (20001115), vol. 120, no. 11, ISSN 0340-4803, pages 49 - 53, XP000977725 [A] 1-11 * the whole document *
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.