POLYURETHANE SORBENT FOR HYDROCARBONS AND A METHOD FOR CLEANING WATER AND SOLID SURFACES FROM HYDROCARBON POLLUTANTS USING THIS SORBENT

oil pollution removal. SUBSTANCE: block-shaped, crumbed or powdered polyurethane sorbent is product of interaction of (i) one or several polyetherpolyols with molecular weight between 300 and 6000 and containing 2 to 5 hydroxyl groups per molecule with (ii) aromatic isocyanate containing 2-3 isocyan...

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Bibliographische Detailangaben
Hauptverfasser:	KALININ S.V, SMEKALOVA D.P, POKROVSKIJ S.L, D'JACHKOV A.I
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY DYES MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL POLISHES SEPARATION THEIR RELEVANT APPARATUS TRANSPORTING TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:	oil pollution removal. SUBSTANCE: block-shaped, crumbed or powdered polyurethane sorbent is product of interaction of (i) one or several polyetherpolyols with molecular weight between 300 and 6000 and containing 2 to 5 hydroxyl groups per molecule with (ii) aromatic isocyanate containing 2-3 isocyanate groups per molecule and (iii) water at weight ratio 1:(0.5-2.0): (0.083-0.25). Sorbent is characterized by apparent density up to 20 kg/cu. m and 50% fraction of pores with size not superior to 50 mcm. EFFECT: enhanced cleaning efficiency. 4 cl, 8 ex