Effect of the mixing procedure on aluminium (oxide)-hydroxide obtained by precipitation of aluminium nitrate with soda

J. F. Hochepied; O. Ilioukhina; M. H. Berger

doi:10.1016/S0167-577X(02)01381-2

Effect of the mixing procedure on aluminium (oxide)-hydroxide obtained by precipitation of aluminium nitrate with soda

J. F. Hochepied, O. Ilioukhina, M. H. Berger

Mines ParisTech

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

Abstract

Three different mixing procedures of aluminium nitrate with soda were compared keeping identical aging conditions (T=60 °C, pH=9, 120-min aging): injection of nitrate aluminium solution into soda, injection of soda into nitrate aluminium solution and double jet. Each procedure led to a specific compound: microporous boehmite, bayerite and fibrillar boehmite, respectively. For single jet procedures, reactions were therefore driven locally in the mixing zone where the most influent parameter was the nature of injected solution. This allows obtainment of bayerite or boehmite at unexpected pH.

Original language	English
Pages (from-to)	2817-2822
Number of pages	6
Journal	Materials Letters
Volume	57
Issue number	19
DOIs	https://doi.org/10.1016/S0167-577X(02)01381-2
Publication status	Published - 1 Jun 2003
Externally published	Yes

Keywords

Bayerite
Boehmite
Ceramics
Mixing
Porosity
Precipitation

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10.1016/S0167-577X(02)01381-2

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title = "Effect of the mixing procedure on aluminium (oxide)-hydroxide obtained by precipitation of aluminium nitrate with soda",

abstract = "Three different mixing procedures of aluminium nitrate with soda were compared keeping identical aging conditions (T=60 °C, pH=9, 120-min aging): injection of nitrate aluminium solution into soda, injection of soda into nitrate aluminium solution and double jet. Each procedure led to a specific compound: microporous boehmite, bayerite and fibrillar boehmite, respectively. For single jet procedures, reactions were therefore driven locally in the mixing zone where the most influent parameter was the nature of injected solution. This allows obtainment of bayerite or boehmite at unexpected pH.",

keywords = "Bayerite, Boehmite, Ceramics, Mixing, Porosity, Precipitation",

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AU - Hochepied, J. F.

AU - Ilioukhina, O.

AU - Berger, M. H.

PY - 2003/6/1

Y1 - 2003/6/1

N2 - Three different mixing procedures of aluminium nitrate with soda were compared keeping identical aging conditions (T=60 °C, pH=9, 120-min aging): injection of nitrate aluminium solution into soda, injection of soda into nitrate aluminium solution and double jet. Each procedure led to a specific compound: microporous boehmite, bayerite and fibrillar boehmite, respectively. For single jet procedures, reactions were therefore driven locally in the mixing zone where the most influent parameter was the nature of injected solution. This allows obtainment of bayerite or boehmite at unexpected pH.

AB - Three different mixing procedures of aluminium nitrate with soda were compared keeping identical aging conditions (T=60 °C, pH=9, 120-min aging): injection of nitrate aluminium solution into soda, injection of soda into nitrate aluminium solution and double jet. Each procedure led to a specific compound: microporous boehmite, bayerite and fibrillar boehmite, respectively. For single jet procedures, reactions were therefore driven locally in the mixing zone where the most influent parameter was the nature of injected solution. This allows obtainment of bayerite or boehmite at unexpected pH.

KW - Bayerite

KW - Boehmite

KW - Ceramics

KW - Mixing

KW - Porosity

KW - Precipitation

U2 - 10.1016/S0167-577X(02)01381-2

DO - 10.1016/S0167-577X(02)01381-2

M3 - Article

AN - SCOPUS:0037562964

SN - 0167-577X

VL - 57

SP - 2817

EP - 2822

JO - Materials Letters

JF - Materials Letters

IS - 19

ER -

Effect of the mixing procedure on aluminium (oxide)-hydroxide obtained by precipitation of aluminium nitrate with soda

Abstract

Keywords

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