KINETICS OF HYDROLYSIS AND OXIDATION OF CARBON-DISULFIDE BY HYDROGEN-PEROXIDE IN ALKALINE-MEDIUM AND APPLICATION TO CARBONYL SULFIDE

被引：34

作者：

ADEWUYI, YG ^{[1
]}

CARMICHAEL, GR ^{[1
]}

机构：

[1] UNIV IOWA, CHEM & MAT ENGN PROGRAM, IOWA CITY, IA 52242 USA

来源：

ENVIRONMENTAL SCIENCE & TECHNOLOGY | 1987年 / 21卷 / 02期

关键词：

CARBON - Hydrolysis - CHEMICAL REACTIONS - Reaction Kinetics - HYDROGEN PEROXIDE - Chemical Reactions - ORGANIC COMPOUNDS - Oxidation - SPECTROPHOTOMETERS;

D O I：

10.1021/es00156a602

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Kinetic studies of the oxidation of carbon disulfide by hydrogen peroxide in alkaline medium were made spectrophotometrically. The reaction of CS2 with OH- ion was found to be rate controlling and proceeded by the formation of a dithiocarbonate complex. The major reaction product was sulfate with sulfur occurring as colloidal suspensions only at pH values less than 8. The formation of sulfate increased exponentially with time and was also found to be dependent on the rate of hydrolysis of CS2. In addition, the production of sulfate showed large induction periods, suggesting either a complex mechanism or formation by secondary reactions. The results obtained for carbon disulfide were extended to carbonyl sulfide (OCS) oxidation in alkaline solutions. The removal of OCS (acid gas) from mixtures of gases by alkaline liquid absorbents (e.g., NaOH) and oxidation of subsequent solutions to sulfate is an important industrial practice.

引用

页码：170 / 177

页数：8

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