Analytical options for control of acids and bases in hydrometallurgical processes

Autor:	Lars-Göran Danielsson, Folke Ingman, Fernando Albertús, Isel Cortés
Rok vydání:	1999
Předmět:	Engineering Sequential injection analysis Chromatography Flow (mathematics) Control and Systems Engineering business.industry Continuous flow Titration Common procedures Single point business Process engineering
Zdroj:	Process Control and Quality. 11:289-300
ISSN:	1568-5667 0924-3089
DOI:	10.1163/156856699750249413
Popis:	The most common procedures for the determination of acids and bases in hydrometallurgical process liquors are reviewed and compared. Automated batch titrations, performed by stepwise addition of titrant and using Gran plots for evaluation are reliable but slow compared to flow techniques. Continuous flow titrations are grouped into three classes: Flow Injection Titration, Single Point Flow Injection Titration, and Triangle-programmed Flow Titrations. Furthermore, Sequential Injection Analysis is also considered for process applications. Each one of these methods has advantages and drawbacks. An overview of the most common application problems, and the way they are solved with each methodology, is given. The analytical characteristics of the described procedures are given as well as a guide for the choice of technique for a given application.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::151e1ed59bbff306846bca054be81dd7 https://doi.org/10.1163/156856699750249413 Zobrazit plný text záznamu Plný text ve formátu PDF