摘要:

In this article we present a general survey of adsorptive bubble separation processes. These separation methods involve the use of selective adsorption at gas-liquid interfaces, the interfaces being generated by gas bubbles in aqueous media. A variety of processes based on this mechanism have been developed, and these methods are described in this review. The underlying concepts in this field are then explored so that the similarities between the methods can be seen. Engineering applications, as well as our own work on analytical applications, are presented. Suggestions are also made as to future potentialities for these adsorptive bubble separation processes. Finally, to place these methods in proper perspective, the techniques are compared to such widely used processes as ion exchange and liquid-liquid extraction.

ISSN:0037-2366    

DOI:10.1080/01496396808052227

出版商:Taylor & Francis Group    

年代:1968

数据来源: Taylor

摘要:

The fundamental conservation-of-mass equation is derived for linear one-dimensional chemical systems in which no lateral diffusion or rate control exists. The theoretical results are applied to (a) a comparison of the fields of chemical separations, thermodynamics, and kinetics; (b) the derivation of a general equation for gradient elution and programmed temperature chromatography; and (c) the description of three new carrier chromato-graphic techniques, carrier magnetochromatography, solid phase carrier electrochromatography, and inverse carrier electrochromatography. The role of chemical equilibria in chromatographic systems is briefly discussed.

ISSN:0037-2366    

DOI:10.1080/01496396808052228

出版商:Taylor & Francis Group    

年代:1968

数据来源: Taylor

摘要:

Solvent extraction, molecular weight determination, and infrared analysis have been used to study the nature of the amine salt present in the organic phase in the extraction of sulfuric acid by tri-n-caprylamine. Tri-n-capryl-amine in the concentration range of 0.05–0.25Mextracts sulfuric acid to form either the normal sulfate or the bisulfate salt, depending on the concentration of acid in the aqueous phase. The normal sulfate is monomeric, while the bisulfate is dimeric. Characteristic infrared absorption bands, attributable to the normal sulfate and the bisulfate salt form, were observed.

ISSN:0037-2366    

DOI:10.1080/01496396808052229

出版商:Taylor & Francis Group    

年代:1968

数据来源: Taylor

摘要:

Tungsten is extracted from acidic tungstate solutions by the long-chain tertiary alkyl amine, tri-n-caprylamine, in benzene. Distribution data derived from solvent extraction are interpreted in terms of the predominating tungsten species present in the aqueous phase. The results show that the nature of the tungstate species extracted by tri-n-caprylamine changes markedly with the pH of the system. Further, the order of extraction is consistent with the order in which tungstate species should form as a function of the ratio of acid equivalents to moles of tungstate ions in solution.

ISSN:0037-2366    

DOI:10.1080/01496396808052230

出版商:Taylor & Francis Group    

年代:1968

数据来源: Taylor

摘要:

A practical method is reported for the calculation by digital computer of counter-double-current-distribution curves of ideal solutes. The method is applicable for the calculation of batchwise operations of the distribution train when the solute is loaded in any number of tubes at any position in the train. Application of the method permits the calculation of the distribution of solutes in the train and in the effluent fractions. The results of calculations of the effects of several modes of operation of the counter-double-current-distribution train are presented. The distribution of a mixture of isoleucine and valine center-loaded into 38 tubes of a 58-tube train is presented as an example.

ISSN:0037-2366    

DOI:10.1080/01496396808052231

出版商:Taylor & Francis Group    

年代:1968

数据来源: Taylor

摘要:

This is a scanned image of the original Editorial Board page(s) for this issue.

ISSN:0037-2366    

DOI:10.1080/01496396808052226

出版商:Taylor & Francis Group    

年代:1968

数据来源: Taylor