FIELD: chemistry.
SUBSTANCE: invention relates to pipeline transportation of liquid hydrocarbons and specifically to methods of reducing hydrodynamic resistance of said liquids. Described is a method of producing a suspension-type anti-turbulence additive. The method involves producing a fine-grained polymer which is soluble in carbonaceous liquids. The polymer is synthesised by (co)polymerisation of higher α-olefins under the action of a Ziegler-Natta catalyst. The (co)polymer of higher α-olefins used is a casting polymerisation product. A fine dispersion of the polymer is obtained by thermal re-precipitation of the polymer in a liquid which is a nonsolvent for the polymer at room temperature and capable of dissolving it at a higher temperature.
EFFECT: improved quality of the polymer component, cutting the volume of solvents, reduced environmental load.
2 ex
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Authors
Dates
2013-05-10—Published
2011-09-30—Filed