Removal of 5-Amino-2-chlorotoluene-4-sulfonic and Chlorhydric  Acids from Wastewater by Weakly Basic Resin

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Removal of 5-Amino-2-chlorotoluene-4-sulfonic and Chlorhydric Acids from Wastewater by Weakly Basic Resin

LIChanghai^a,b; XUZhenliang^a; LIChunping^b

^a School of Chemical Engineering, East China University of Science & Technology, Shanghai 200237, China
^b School of Chemical Engineering, Changchun University of Technology, Changchun 130012, China

Received:1900-01-01 Revised:1900-01-01 Online:2006-10-28 Published:2006-10-28
Contact: LI Changhai

以弱碱性树脂去除废水中5-氨基-2-氯苯-4-磺酸和盐酸

李长海^a,b; 许振良^a; 李春平^b

^a School of Chemical Engineering, East China University of Science & Technology, Shanghai 200237, China
^b School of Chemical Engineering, Changchun University of Technology, Changchun 130012, China

通讯作者: 李长海

Abstract

Abstract: This research deals with an investigation of the adsorption of two acids, namely, 5-amino- 2-chlorotoluene-4-sulfonic and chlorhydric acids from their solution onto weakly basic resin. The screening of res-ins, kinetics, and isotherm were studied. The results indicate that the D301R is more appropriate for the removal of acids from solution. The adsorption of acids obeys Langmuir isotherm and the first-order kinetics model. Sorptive affinity of the two acids on D301R was found to be in the order of 5-amino-2-chlorotoluene-4-sulfonic acid> chlorhydric acid. Thermodynamic parameters for the adsorption of acids were calculated and discussed. The maxi-mum removal of acids was observed around 97% and 76% at 25℃ for 5-amino-2-chlorotoluene-4-sulfonic acid and chlorhydric acid , respectively.

Key words: 5-amino-2-chlorotoluene-4-sulfonic acid, chlorhydric acid, adsorption, weakly basic resin

摘要： This research deals with an investigation of the adsorption of two acids, namely, 5-amino- 2-chlorotoluene-4-sulfonic and chlorhydric acids from their solution onto weakly basic resin. The screening of res-ins, kinetics, and isotherm were studied. The results indicate that the D301R is more appropriate for the removal of acids from solution. The adsorption of acids obeys Langmuir isotherm and the first-order kinetics model. Sorptive affinity of the two acids on D301R was found to be in the order of 5-amino-2-chlorotoluene-4-sulfonic acid> chlorhydric acid. Thermodynamic parameters for the adsorption of acids were calculated and discussed. The maxi-mum removal of acids was observed around 97% and 76% at 25℃ for 5-amino-2-chlorotoluene-4-sulfonic acid and chlorhydric acid , respectively.

关键词: 5-amino-2-chlorotoluene-4-sulfonic acid;chlorhydric acid;adsorption;weakly basic resin

LIChanghai, XUZhenliang, LIChunping. Removal of 5-Amino-2-chlorotoluene-4-sulfonic and Chlorhydric Acids from Wastewater by Weakly Basic Resin[J]. .

李长海, 许振良, 李春平. 以弱碱性树脂去除废水中5-氨基-2-氯苯-4-磺酸和盐酸[J]. CIESC Journal.

References

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