Study of the thermal behaviour of hydroxide mixtures aimed at the preparation of Mg-Al spinels

G. Gusmano; P. Nunziante; E. Traversa; G. Chiozzini

doi:10.1007/BF01912199

Study of the thermal behaviour of hydroxide mixtures aimed at the preparation of Mg-Al spinels

G. Gusmano^*, P. Nunziante, E. Traversa, G. Chiozzini

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

The thermal behaviour of hydroxide mixtures aimed at Mg-Al spinel preparation is reported. The mixtures of hydroxides were prepared by precipitation reaction from Mg and Al nitrate solutions, stoichiometric to the spinel formation. Hydroxide mixtures with different phase distributions were investigated, prepared by varying the precipitation procedure. The results were related to the thermal behaviour of mechanical mixtures of separately precipitated hydroxides. The spinel formation was identified performing XRD analysis on powder samples heated at different temperatures. The coprecipitated mixtures are completely decomposed to spinel at 400‡C. The presence of the Mg-Al mixed hydroxide phase in the mixture is of primary concern to get spinel at low temperatures.

Original language	English (US)
Pages (from-to)	1697-1707
Number of pages	11
Journal	Journal of Thermal Analysis
Volume	37
Issue number	8
DOIs	https://doi.org/10.1007/BF01912199
State	Published - Aug 1991
Externally published	Yes

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
General Engineering

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10.1007/BF01912199

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title = "Study of the thermal behaviour of hydroxide mixtures aimed at the preparation of Mg-Al spinels",

abstract = "The thermal behaviour of hydroxide mixtures aimed at Mg-Al spinel preparation is reported. The mixtures of hydroxides were prepared by precipitation reaction from Mg and Al nitrate solutions, stoichiometric to the spinel formation. Hydroxide mixtures with different phase distributions were investigated, prepared by varying the precipitation procedure. The results were related to the thermal behaviour of mechanical mixtures of separately precipitated hydroxides. The spinel formation was identified performing XRD analysis on powder samples heated at different temperatures. The coprecipitated mixtures are completely decomposed to spinel at 400‡C. The presence of the Mg-Al mixed hydroxide phase in the mixture is of primary concern to get spinel at low temperatures.",

author = "G. Gusmano and P. Nunziante and E. Traversa and G. Chiozzini",

year = "1991",

month = aug,

doi = "10.1007/BF01912199",

language = "English (US)",

volume = "37",

pages = "1697--1707",

journal = "Journal of Thermal Analysis",

issn = "0368-4466",

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T1 - Study of the thermal behaviour of hydroxide mixtures aimed at the preparation of Mg-Al spinels

AU - Gusmano, G.

AU - Nunziante, P.

AU - Traversa, E.

AU - Chiozzini, G.

PY - 1991/8

Y1 - 1991/8

N2 - The thermal behaviour of hydroxide mixtures aimed at Mg-Al spinel preparation is reported. The mixtures of hydroxides were prepared by precipitation reaction from Mg and Al nitrate solutions, stoichiometric to the spinel formation. Hydroxide mixtures with different phase distributions were investigated, prepared by varying the precipitation procedure. The results were related to the thermal behaviour of mechanical mixtures of separately precipitated hydroxides. The spinel formation was identified performing XRD analysis on powder samples heated at different temperatures. The coprecipitated mixtures are completely decomposed to spinel at 400‡C. The presence of the Mg-Al mixed hydroxide phase in the mixture is of primary concern to get spinel at low temperatures.

AB - The thermal behaviour of hydroxide mixtures aimed at Mg-Al spinel preparation is reported. The mixtures of hydroxides were prepared by precipitation reaction from Mg and Al nitrate solutions, stoichiometric to the spinel formation. Hydroxide mixtures with different phase distributions were investigated, prepared by varying the precipitation procedure. The results were related to the thermal behaviour of mechanical mixtures of separately precipitated hydroxides. The spinel formation was identified performing XRD analysis on powder samples heated at different temperatures. The coprecipitated mixtures are completely decomposed to spinel at 400‡C. The presence of the Mg-Al mixed hydroxide phase in the mixture is of primary concern to get spinel at low temperatures.

UR - http://www.scopus.com/inward/record.url?scp=0026208420&partnerID=8YFLogxK

U2 - 10.1007/BF01912199

DO - 10.1007/BF01912199

M3 - Article

AN - SCOPUS:0026208420

SN - 0368-4466

VL - 37

SP - 1697

EP - 1707

JO - Journal of Thermal Analysis

JF - Journal of Thermal Analysis

IS - 8

ER -

Study of the thermal behaviour of hydroxide mixtures aimed at the preparation of Mg-Al spinels

Abstract

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