FIELD: methods of transportation of solutions liable to solidification in which solid, in fact, nonconveyable product may be formed and excessive pressure may be built inside the solution. SUBSTANCE: method includes heating of cellulose solution in aqueous solution of tertiary amine oxide above 80 C and release of excessive pressure by means of device having disc displaced under the action of pressure. Disc is located in pipeline with possibility of washing of at least its one part with cellulose solution passing through pipeline. EFFECT: higher reliability of transportation of cellulose solution due to provision of release of excessive pressure. 8 cl, 3 dwg
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