Microphase-assisted "autocatalysis" in a solid-liquid reaction with a precipitating product - II. Experimental

被引：25

作者：

Anderson, JG ^{[1
]}

Larson, MA ^{[1
]}

Doraiswamy, LK ^{[1
]}

机构：

[1] Iowa State Univ, Dept Chem Engn, Ames, IA 50011 USA

来源：

CHEMICAL ENGINEERING SCIENCE | 1998年 / 53卷 / 13期

基金：

美国国家科学基金会;

关键词：

microphase; nucleation; mass transfer enhancement; crystallization; heterogeneous reaction; autocatalysis;

D O I：

10.1016/S0009-2509(98)00074-8

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A comprehensive model was developed in part one of this study for microphase assisted 'autocatalysis', for systems involving a precipitating solid. In the present study, the predictions of this model are validated by using an industrially important system, e.g. the reaction of calcium citrate (solid) with sulfuric acid (aqueous) to produce citric acid (desired product) and calcium sulfate dihydrate (solid by-product). As a first step, it was found that enhancements as high as 2.81 could indeed be obtained as a result of 'autocatalysis' microphase action of product calcium sulfate. Elaborate experimental studies were carried out to independently determine the parameters of the model, based ore which the application of the model to the system was verified. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：2459 / 2468

页数：10

共 21 条

[1] GAS-ABSORPTION MECHANISM IN CATALYTIC SLURRY REACTORS [J].