HYDROLYSIS OF CARBONYL SULFIDE - COMPARISON TO REACTIONS OF ISOCYANATES

被引：13

作者：

ERNST, WR ^{[1
]}

CHEN, MSK ^{[1
]}

MITCHELL, DL ^{[1
]}

机构：

[1] AIR PROD & CHEM INC, ALLENTOWN, PA 18105 USA

来源：

CANADIAN JOURNAL OF CHEMICAL ENGINEERING | 1990年 / 68卷 / 02期

关键词：

carbonyl sulfide hydrolysis; gas‐liquid reactor; hydrolysis catalyzed; tertiary amine catalyst;

D O I：

10.1002/cjce.5450680218

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The hydrolysis of carbonyl suflfide (COS), catalyzed by tertiary amines, was studied in a gas‐liquid reactor at ambient conditions. Rate constants determined in a batch reactor were similar to those determined in a continuous flow reactor. A Bronsted plot of the reaction data over the amine basicity range, 0 < pKB < 14, suggested that both amine basicity and steric factors determine catalytic behavior. The reaction data suggest a mechanism analogous to one used to explain the base catalyzed reaction of isocyanates with hydroxyl compounds. The mechanism would involve complexation of COS with amine followed by hydrolysis of the complex. Copyright © 1990 Canadian Society for Chemical Engineering

引用

页码：319 / 323

页数：5

共 18 条

[1] THE MECHANISM OF THE REACTION OF ARYL ISOCYANATES WITH ALCOHOLS AND AMINES .4. THE EVIDENCE OF INFRA-RED ABSORPTION SPECTRA REGARDING ALCOHOL AMINE ASSOCIATION IN THE BASE-CATALYSED REACTION OF PHENYL ISOCYANATE WITH ALCOHOLS [J].