STUDY OF SORPTION PROCESS OF OIL AND OIL PRODUCTS WITH FOAM POLYMER SORBENTS BASED ON HIGH-IMPACT POLYSTYRENE

Abstract

Research results of influence of volume mass of crosslinked and foamed sorbents on the basis of secondary high-impact polystyrene with bitumen and zinc stearate upon their sorption capacity are represented. The mechano-chemical synthesis of foamed polymeric sorbents was carried out on the extruder with a three zone material cylinder. Azodicarbonamide was used as foaming agent and dicumyl peroxide was used as crosslinking agent. Foam polymer sorbents have a high buoyancy and hydrophobicity. This circumstance contributes to increasing the selectivity of sorption process of oil and oil products from water surface. The sorption capacity was determined by gravimetric method according to difference between sorbent weights before and after sorption. It was shown that petroleum are better sorbed on foamed polymeric sorbents with low volume weight and greater diameter of closed-celled structures. In the same time the diesel fuel sorbed well on sorbents with relatively high volume weight and accordingly lesser diameter of pores and cells. Petroleum oils are most effectively sorbed on foamed polymeric sorbents which volume weight and cells diameter are interim in comparison with sorbents for sorption of petroleum and diesel fuel. It was determined that rate of sorption processes increases with rising of temperature of aqueous medium independently on pores and cells diameter. In this case changing in sorption capacity occurs according to certain regularity depending on sorbate type, volume weight of sorbent and medium temperature. It was shown that obtained sorbents are characterized by capability to multiple regeneration at keeping of high buoyancy, hydrophobicity and sorption capacity on petroleum and oil products. Forcitation:Kakhramanov N.T., Gahramanly J.N., Kurbanova R.V., Gadzhiyeva R.Sh. Study of sorption process of oil and oil products with foam polymer sorbents based on high-impact polystyrene. Izv. Vyssh. Uchebn. Zaved. Khim. Khim. Tekhnol. 2017. V. 60. N 6. P. 83-88.