SEPARATION OF 2-NAPHTHOL - HYDROTROPY AND PRECIPITATION

被引：24

作者：

RAYNAUDLACROZE, PO ^{[1
]}

TAVARE, NS ^{[1
]}

机构：

[1] UNIV MANCHESTER,INST SCI & TECHNOL,DEPT CHEM ENGN,MANCHESTER M60 1QD,LANCS,ENGLAND

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 1993年 / 32卷 / 04期

关键词：

D O I：

10.1021/ie00016a015

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A process of precipitating out selectively 2-naphthol from a commercial hydrotrope solution containing a mixture of 1- and 2-naphthols by dilution with water is investigated. Solubility data of 1- and 2-naphthols, determined in aqueous solutions of two hydrotropes (viz., sodium cumenesulfonate and sodium butyl monoglycol sulfate) by the weight disappearance methods at different hydrotrope concentrations and temperatures, are used to construct a ternary diagram. Sodium cumenesulfonate appears promising for the separation of 2-naphthol for a typical industrial reactor product in crystalline form (with purity > 99%) at approximately 80% recovery. Precipitation kinetics of 2-naphthol from its hydrotropic solution with sodium cumenesulfonate using water as a precipitant are studied in a laboratory scale agitated precipitator. The kinetics results obtained from experimental responses are correlated in terms of conventional power law expressions.

引用

页码：685 / 691

页数：7

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