Sodium Tripolyphosphate and Polyphosphate as Dispersing Agents for Alumina Suspensions: Rheological Characterization

Sodium Tripolyphosphate and Polyphosphate as Dispersing Agents for Alumina Suspensions: Rheological Characterization

In the present work, the influence of addition of some dispersing agents employed for maximizing the solid loading of alumina concentrated suspensions has been investigated. Two commercially available deflocculants were used: a sodium tripolyphosphate and a sodium polyphosphate. Rheological tests we...

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Main Authors: L. Piani, A. Papo
Format: Article
Language:English
Published: Hindawi Limited 2013-01-01
Series:Journal of Engineering
Online Access:http://dx.doi.org/10.1155/2013/930832
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spelling doaj-4ce731f5daba495a84d3121e5d5b300e2020-11-24T23:24:23ZengHindawi LimitedJournal of Engineering2314-49042314-49122013-01-01201310.1155/2013/930832930832Sodium Tripolyphosphate and Polyphosphate as Dispersing Agents for Alumina Suspensions: Rheological CharacterizationL. Piani0A. Papo1Dipartimento di Chimica, Fisica e Ambiente, Università degli Studi di Udine, Via del Cotonificio 108, 33100 Udine, ItalyDipartimento di Chimica, Fisica e Ambiente, Università degli Studi di Udine, Via del Cotonificio 108, 33100 Udine, ItalyIn the present work, the influence of addition of some dispersing agents employed for maximizing the solid loading of alumina concentrated suspensions has been investigated. Two commercially available deflocculants were used: a sodium tripolyphosphate and a sodium polyphosphate. Rheological tests were carried out at 25°C under continuous flow conditions by using the rate-controlled coaxial cylinder viscometer Rotovisko-Haake 20, system M5-osc., measuring device SV2P with serrated surfaces. The application of rheological techniques permitted the evaluation of the efficiency and the optimum dosage of the dispersing agents employed upon the alumina slips examined, that is, the critical concentration at which the maximum reduction in viscosity is detected.http://dx.doi.org/10.1155/2013/930832
collection DOAJ
language English
format Article
sources DOAJ
author L. Piani
A. Papo
spellingShingle L. Piani
A. Papo
Sodium Tripolyphosphate and Polyphosphate as Dispersing Agents for Alumina Suspensions: Rheological Characterization
Journal of Engineering
author_facet L. Piani
A. Papo
author_sort L. Piani
title Sodium Tripolyphosphate and Polyphosphate as Dispersing Agents for Alumina Suspensions: Rheological Characterization
title_short Sodium Tripolyphosphate and Polyphosphate as Dispersing Agents for Alumina Suspensions: Rheological Characterization
title_full Sodium Tripolyphosphate and Polyphosphate as Dispersing Agents for Alumina Suspensions: Rheological Characterization
title_fullStr Sodium Tripolyphosphate and Polyphosphate as Dispersing Agents for Alumina Suspensions: Rheological Characterization
title_full_unstemmed Sodium Tripolyphosphate and Polyphosphate as Dispersing Agents for Alumina Suspensions: Rheological Characterization
title_sort sodium tripolyphosphate and polyphosphate as dispersing agents for alumina suspensions: rheological characterization
publisher Hindawi Limited
series Journal of Engineering
issn 2314-4904
2314-4912
publishDate 2013-01-01
description In the present work, the influence of addition of some dispersing agents employed for maximizing the solid loading of alumina concentrated suspensions has been investigated. Two commercially available deflocculants were used: a sodium tripolyphosphate and a sodium polyphosphate. Rheological tests were carried out at 25°C under continuous flow conditions by using the rate-controlled coaxial cylinder viscometer Rotovisko-Haake 20, system M5-osc., measuring device SV2P with serrated surfaces. The application of rheological techniques permitted the evaluation of the efficiency and the optimum dosage of the dispersing agents employed upon the alumina slips examined, that is, the critical concentration at which the maximum reduction in viscosity is detected.
url http://dx.doi.org/10.1155/2013/930832
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AT apapo sodiumtripolyphosphateandpolyphosphateasdispersingagentsforaluminasuspensionsrheologicalcharacterization
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