INHIBITOR OF ASPHALTRESINPARAFFIN SEDIMENTS Russian patent published in 2015 - IPC C09K8/524 

FIELD: chemistry.

SUBSTANCE: inhibitor of asphaltresinparaffin sediments, obtained with the application of an alkylacrylate copolymer and aromatic solvent, obtained by the interaction of the copolymer in toluene, which has the mol. weight 6000-8000, a mixture of alkylacrylates, which contain, wt %: alkylacrylate C₁₆ - 65, alkylacrylate C₁₈ - 25, alkylacrylate C₂₀ - 10, with dodecylamine acrylate, and dodecylamine sulphate with heating with mixing to 80°C, introduction of a 8.8-16.6% solution of an azobisisobutyronitrile in toluene initiator, exposure for 5 hours at 90-100°C with the following component ratio, wt %: copolymer of the said mixture of alkylacrylates with dodecylamine acrylate 45-57, dodecylamine sulphate 2-3, toluene - the remaining part.

EFFECT: increased efficiency of preventing the formation of asphaltresinparaffin sediments in paraffinic, highly-paraffinic oils and gas condensates.

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