FIELD: organic chemistry. SUBSTANCE: method involves oxidizing dimerization, purification of thus obtained dimerizate from carbon dioxide and water and removing hydrocarbon fractions C3 and higher. Fraction which contains carbon monoxide, hydrogen, residual oxygen, inert gases and methane is removed. Commercial ethylene is separated of 
fraction which is affected by absorption purification against acetylene. Desired ethylene has high degree of purification. EFFECT: improves efficiency of the method. 2 cl, 1 dwg
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