SORBENT FOR PETROLEUM AND PETROLEUM DERIVATIVES Russian patent published in 1999 - IPC

FIELD: oil pollution removal. SUBSTANCE: sorbent contains (i) mixture of fractions of C₉-C₁₇-, C₁₈-C₂₁- and C₂₂-C₂₇-alkylcarboxylic acids at weight ratio form 0.2:1:1 to 2:3:7 in combination with hydrophobic component of the type of alkylcarboxylic acid esters with general formula RCOOR' where R' is C₁-C₈-alkyl and R is C₈-C₁₆-, C₁₇-C₂₀- or C₂₁-C₂₈-alkyl, and (ii) nonwoven fibrous natural or synthetic material, into with reinforcing and antishrinking components are additionally incorporated. Reinforcing components are preferably thermoplastic polymer and glass-cloth elements, polymer composites based on organosilicon compound with oriented fibers, and glass-cloth laminates. Antishrinking agents are preferably glass fibers with thread diameters between 0.1 and 20 mcm and specific surface 200 to 400 m/kg. EFFECT: increased oil sorption capacity. 4 cl, 2 ex