WO2008134484-A2  A. MALEKZADEH ET AL.: "Critical influence of Mn on low-temperture catalytic activity of Mn/Na2 WO4/SiO2 catalyst for oxidative coupling of methane" CATALYSIS LETTERS, vol. 84, no. 1-2, October 2002 (2002-10), pages 45-51, XP002536954;  D. WANG ; ROSYNEK M. P. ; LUNSFORD J.H.: JOURNAL OF CATALYSIS, vol. 155, no. 2, 1995, pages 390-402, XP002516254 Oxidative coupling of methane over oxide-supported sodium-manganese catalysts;  RONNY NEUMANN ET AL.: "The manganese containing polyoxometalate, [WZnMn2(ZnW9O34)2]12- as a remarkably effective catalyst for hydrogen peroxide mediated oxidations" JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, vol. 117, 1995, pages 5066-5074, XP002536955;  SERGEI PAK, PING QIU, JACK H. LUNSFORD: "Elementary Reactions in the oxidative coupling of methane over Mn/Na2WO4/SiO2 and Mn/Na2WO4/MgO catalysts" JOURNAL OR CATALYSIS, vol. 179, 1998, pages 222-230, XP002516390US8129305-B2  International Preliminary Report on Patentability_PCT/US2008/061527.;  Journal of Catalysis 180:85-100, 1999, Claridge, J.B., A.P.E. York, A.J. Brungs, C. Marquez-Alvarez, J. Sloan, S.C. Tsang and M.L.H. Green.;  Applied Catalysis A: General 155:L1-L7, 1997, Cordi, E.M., S. Pak, M.P. Rosynek, and J.H. Lunsford.;  Science 264: 1563-1566, Jun. 10, 1994, Jiang, Y., I.V. Yentekakis, and C.G. Vayenas.;  Applied Catalysis A: General 146:391-400, 1996, Machocki, A.;  3rd World Congress on Oxidation Catalysis, pp. 711-720, in R.K. Grasselli, S.T. Pyama, A.M. Gaffney and J.E. Lyons (Editors); Elsevier Science B.V., 1997, York, A.P.E., J.B. Claridge, C. Marquez-Alvarez, A.J. Brungs, S.C. Tsang and M.L.H. Green.;  Sergei Pak, Ping Qiu, Jack H. Lunsford; "Elementary Reactions in the Oxidative Coupling of Methane over Mn/Na2WO4/MgO Catalysts" Journal of Catalysis, vol. 179, 1998, pp. 222-230, Academic Press.;  Dingjun Wang, Michael P. Rosynek, Jack H. Lunsford; "Oxidative Coupling of Methane over Oxide-Supported Sodium-Manganese Catalysts" Journal of Catalysis, vol. 155, 1995, pp. 390-402, Academic Press.;  A. Malekzadeh, M. Abedini, A.A. Khodadadi, M. Amini, H.K. Mishra, A.K. Dalai; "Critical Influence of Mn on low-temperature catalytic activity of Mn/Na2WO4/SiO2 Catalyst for Oxidatve Coupling of Methane" Catalysis Letters, vol. 84, Nos. 1-2, Oct. 2002, pp. 45-51, Plenum Publishing Corporation.;  Ronny Neumann and Mohammad Gara; "The Manganese-Containing Polyoxometalate, [WZnMn2(ZnW9034)2]12-, as a Remarkably Effective Catalyst for Hydrogen Peroxide Mediated Oxidations" Journal of The American Chemical Society, vol. 117, 1995, pp. 5066-5074, American Chemical Society.;  International Search Report with Written Opinion_PCT/US2008/061527.RU2478426-C2  Sergei Pak, Ping Qiu, Jack H.Lunsford "Elementary reactions in the oxidative coupling of methane over Mn/Na2WO4/SiO2 and Mn/Na2WO4/MgO catalysts" Journal or catalysis, vol.179, 1998, pages 222-230;  D.Wang, Rosynek M.P., Lunsford J.H;  "Oxidative coupling of methane over oxide-supported sodium-manganese catalysts" JournalCN101730586-B  Sergei Pak et al. . " Reactions in the treatment of the LC-MS of Methane Mn Na2WO4/SiO2 and Mn/Na2WO4/MgO Catalysts. "JOURNAL OF CATALYSIS". 1997, volume 115, pages 222-223.