FIELD: industrial organic synthesis. SUBSTANCE: ethylene is produced from methane in presence of catalyst based on manganese oxide promoted with lithium and phosphorus compounds expressed by formula x•Li3PO4(1-x)•MnOy, in which [ = 0.01-0.36 and y = 1.5-2, obtained using lithium compounds and phosphoric acid. Process is conducted at 800-850 C and contact time 1-3 sec. EFFECT: increased working cycle and increased methaneregarding selectivity. 4 cl, 4 dwg, 6 tbl, 8 ex
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