MATHEMATICAL-MODELING OF THPOH AMMONIATION

被引：1

作者：

NEUMEYER, JP

KEATING, EJ

KNOEPFLER, NB

机构：

[1] Science and Education Administration, U.S. Department of Agriculture

[2] Southern Regional Research Center, New Orleans

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY PROCESS DESIGN AND DEVELOPMENT | 1979年 / 18卷 / 01期

关键词：

D O I：

10.1021/i260069a014

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A mathematical model of the ammoniation step in the THPOH-NH3 flame retarding finishing process for cellulosic textiles has been developed. The basic features of commercial ammoniation systems are considered in describing physical phenomena that occur during the curing operation. The model demonstrates that thermodynamics of ammonia-water vapor-liquid equilibrium control the operating characteristics of the chamber. Increased flame-retarding polymer formation is predicted by the model, with (1) increases in ammonia flow rate, (2) decreases in chamber operating temperatures, and (3) cooling the fabric prior to curing. These predictions agree with experimental observations. The role of moisture in controlling the rate of conversion is further investigated. A procedure for investigating effects of different fabric constructions is suggested. © 1979, American Chemical Society. All rights reserved.

引用

页码：108 / 113

页数：6