Hostname: page-component-8448b6f56d-c47g7 Total loading time: 0 Render date: 2024-04-24T22:10:09.083Z Has data issue: false hasContentIssue false
  • English
  • Français

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
Get access

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

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1 Sulman, M. G.. The influence of ultrasound on catalytical processes. “Uspekhi khimii", 69 (2) (2000) 178–189.Google Scholar
2 Esenova, A. A.. Iljas, R. U.. Shakieva, T. V., Elubay, M., Yemelyanova, V. S.. The ultrasound influence on kinetics of sulphur dioxide oxidation by oxygen in the presence of cobalt and nickel complexes fixed on polyacrylic acid // the Bulletin of KazNU. Ser. Chem. 1 (2010) 168–171.Google Scholar