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Phosphogypsum Decomposition Process - EP3713872

The patent EP3713872 was granted to OCP on Jul 19, 2023. The application was originally filed on Nov 22, 2018 under application number EP18807732A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

EP3713872

OCP
Application Number
EP18807732A
Filing Date
Nov 22, 2018
Status
Granted And Under Opposition
Jun 16, 2023
Grant Date
Jul 19, 2023
External Links
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THYSSENKRUPP POLYSIUS THYSSENKRUPP UHDEApr 19, 2024GULDE & PARTNERADMISSIBLE

Patent Citations (13) New

Patent citations refer to prior patents cited during different phases such as opposition or international search.

Citation PhasePublication NumberPublication Link
DESCRIPTIONUS3087790
DESCRIPTIONUS4503018
DESCRIPTIONUS5433939
DESCRIPTIONUS6024932
INTERNATIONAL-SEARCH-REPORTUS3607045
INTERNATIONAL-SEARCH-REPORTUS3729551
INTERNATIONAL-SEARCH-REPORTUS4102989
INTERNATIONAL-SEARCH-REPORTUS4503018
INTERNATIONAL-SEARCH-REPORTUS6024932
OPPOSITIONUS3607045
OPPOSITIONUS4102989
OPPOSITIONUS4503018
OPPOSITIONWO8905282

Non-Patent Literature (NPL) Citations (11) New

NPL citations refer to non-patent references such as research papers, articles, or other publications cited during examination or opposition phases.

Citation PhaseReference TextLink
OPPOSITION- Anonymous, "CALPHAD", Wikipedia, (20221223), pages 1 - 3, Wikipedia, URL: https://en.wikipedia.org/w/index.php?title=CALPHAD&oldid=1129087902, XP093188114-
OPPOSITION- Anonymous, "FactSage", Software - FactSage, GTT-Technologies, (20240722), pages 1 - 12, Software - FactSage, URL: https://gtt-technologies.de/software/factsage/, XP093188111-
OPPOSITION- Gasafi E, Jeske U, Reinhardt T, "Gipsreduktion mit Kohlenstoff Rahmenbedingungen für die Verwertung mineralischer Reststoffe mit Sulfatgehalt und potenzielle Einsatzstoffe für ein GRC-Verfahren", Wissenschaftliche Berichte FZKA 7189, Forschungszentrum Karlsruhe in der Helmholtz-Gemeinschaft, (20060301), pages 1 - 88, Wissenschaftliche Berichte FZKA 7189, URL: https://publikationen.bibliothek.kit.edu/270064169/3814799#:~:text=Das%20Gipsschwefels%C3%A4ure%2DVerfahren%20basiert%20auf,in%20einem%20Dreh%2D%20rohrofen%20statt., XP093188074-
OPPOSITION- Sturmfels E. K., "The production of sulphuric acid and Portland cement from calcium sulphate and aluminium silicates: the chemical fundamentals ", REPORT NO.1949/44 (Geol. Sere NQ. 27), DEPARTMENT OF SUPPLY AND SHIPPING. BUREAU OF MINERAL RESOURCES GEOLOGY AND GEOPHYSICS, Australia, Australia, (19490616), pages 1 - 9, REPORT NO.1949/44 (Geol. Sere NQ. 27) , URL: https://ecat.ga.gov.au/geonetwork/js/api/records/a05f7892-fc51-7506-e044-00144fdd4fa6, XP093188079-
OPPOSITION- Vogel G. J., I. Johnson, P. T. Cunningham, B. R. Hubble, S. H. Lee, J. F. Lenc, J. Montagna, F. F. Nunes, S. Siegel, G. W. Smith, R. B. Snyder, S. Saxena, W. M. Swift, G. F. Teats, C. B. Turner, W. I. Wilson, And A. A. Jonke, "A Development program on pressurized fluidized-bed combustion. Annual report, July 1975--June 1976", Technical Report, Argonne National Lab., Ill. (USA), Ill. (USA), (19760701), pages 1 - 206, Technical Report, URL: https://www.osti.gov/biblio/7146849, XP093188068-
OPPOSITION- W. M Swift, Panek Allen, Smith G. W, Vogel G. J, Jonke A. A, "Decomposition of Calcium Sulfate : a Review of the Literature", Argonne National Laboratory, (19761201), URL: http://www.osti.gov/scitech/servlets/purl/7224692/, (20151123), XP055230365-
OPPOSITION- Zheng Shaocong, Ning Ping, Ma Liping, Niu Xuekui, Zhang Wei, Chen Yuhang, "Reductive decomposition of phosphogypsum with high-sulfur-concentration coal to SO2 in an inert atmosphere", Chemical Engineering Research and Design, ELSEVIER, AMSTERDAM, NL, AMSTERDAM, NL, (20111201), vol. 89, no. 12, doi:10.1016/j.cherd.2011.03.016, ISSN 0263-8762, pages 2736 - 2741, XP093188072
OPPOSITION- Zhu Bin, Ma Liping, Zheng Dalong, Ma Guipeng, Lian Yan, Yang Jie, "Study on the Transmission and Transformation of the Impurities in the Reductive Decomposition Process of Phosphogypsum", Proceedings of the 2016 6th International Conference on Machinery, Materials, Environment, Biotechnology and Computer (MMEBC 2016), Atlantis Press, (20160601), doi:10.2991/mmebc-16.2016.161, pages 767 - 773, XP093188108
OPPOSITION- Oh Jae Seung, "The kinetics of the reductive decomposition of calcium sulfate with carbon monoxide", Dissertation, Iowa State University, (19880101), pages 1 - 202, doi:10.31274/rtd-180813-12502, XP093188087
OPPOSITION- Bollen Walter Michael, "Thermal decomposition of calcium sulfate", Dissertation, Iowa State University, (19540101), pages 1 - 235, doi:10.31274/rtd-180813-14681, XP093188094
OPPOSITION- Wheelock Thomas David, "Desulfurization of gypsum", Dissertation, Iowa State College, (19580101), pages 1 - 254, doi:10.31274/rtd-180813-827, XP093188104

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