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Ultrasound Influence on Kinetics of Phenol Sulphoxidation in Water Solutions in the Presence of Cobalt Complexes Immobilized on Polyacrylic Acid

Published online by Cambridge University Press:  01 February 2011

C.c.s. Shakieva T. V.
C.c.s. Shakieva T. V.*
Affiliation:
Scientific Research Institute of New Chemical Technologies and Materials, 95A, Karasay batyr str., Almaty, 050012, Republic of Kazakhstan. Email: Tatyana.Shakieva@kaznu.kz
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Abstract

The influence of hypersonic on phenol sulfoxidation kinetics in the presence of cobalt complexes fixed on polyacrylic acid (PAA) is investigated in the soft conditions (313-333K). Products are p- and o-phenolsulfonic acids. Phenol conversion under the investigated conditions reaches 98-100 %. The ultrasonic sound in the interval from 0 to 60 kHz leads to aggrandizement of trivalent cobalt concentration in a solution, as a result, increasing the reaction activity. The enlargement of ultrasound influence (USI) modulation frequency and the exposure time results in destruction of a binuclear complex, which may be responsible for enhanced catalytic activity. KEDWORDS: ultrasound influence; polyacrylic acid; immobilized cobalt complexes; kinetics

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1279: New Catalytic Materials , 2010 , 27
Copyright
Copyright © Materials Research Society 2010

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References

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