Stability of aluminium orthophosphate in the system NH3AIPO4-P2O5-H2O

1987 ◽  
Vol 6 (2) ◽  
pp. 178-180 ◽  
Author(s):  
Akira Ono ◽  
Michiko Kobayashi
Keyword(s):  
Aluminium Orthophosphate

Microemulsion-based solvothermal synthesis of aluminium orthophosphate nanocrystals

2005 ◽  
Vol 16 (10) ◽  
pp. 2129-2133 ◽  
Author(s):  
Minhua Cao ◽  
Xiaoyan He ◽  
Xinglong Wu ◽  
Changwen Hu
Keyword(s):  
Solvothermal Synthesis ◽  
Aluminium Orthophosphate

Alkylation of phenol with alcohols on an aluminium orthophosphate-alumina system as catalyst

1984 ◽  
Vol 24 (3-4) ◽  
pp. 247-251 ◽  
Author(s):  
S. Esteban Santos ◽  
J. M. Marinas Rubio ◽  
M. P. Martinez Alcazar
Keyword(s):  
Aluminium Orthophosphate

Infrared spectra of aluminium orthophosphate crystals

1986 ◽  
Vol 5 (2) ◽  
pp. 203-205 ◽  
Author(s):  
K. Byrappa ◽  
S. Srikantaswamy ◽  
G. S. Gopalakrishna ◽  
V. Venkatachalapathy
Keyword(s):  
Infrared Spectra ◽  
Aluminium Orthophosphate

ChemInform Abstract: Isomerization of o-Alkylphenols on an Aluminium Orthophosphate-Alumina.

1985 ◽  
Vol 16 (50) ◽  
Author(s):  
S. E. SANTOS ◽  
J. M. M. RUBIO ◽  
M. P. MARTINEZ-ALCAZAR
Keyword(s):  
Aluminium Orthophosphate

New polymorphic modification of aluminium orthophosphate

1986 ◽  
Vol 5 (7) ◽  
pp. 690-692 ◽  
Author(s):  
K. Byrappa ◽  
S. Srikantaswamy ◽  
J. Shashidhara Prasad
Keyword(s):  
Polymorphic Modification ◽  
Aluminium Orthophosphate

scholarly journals Influence of Aluminium and Boron Orthophosphate on the Setting and the Resulting Structure of Alkali Silicate Binders for Refractory Application

Ceramics ◽  
2020 ◽  
Vol 3 (1) ◽  
pp. 1-11 ◽  
Author(s):  
Vanessa Hopp ◽  
Ali Masoudi Alavi ◽  
Almuth Sax ◽  
Peter Quirmbach
Keyword(s):  
Network Formation ◽  
Structural Information ◽  
Mechanical Analysis ◽  
Time Dependent ◽  
Setting Process ◽  
Wide Range ◽  
Different Types ◽  
Aluminium Orthophosphate ◽  
Hardening Mechanisms ◽  
Alkali Silicates

Liquid alkali silicates (waterglasses) are used as chemical binders for a wide range of refractory applications, the setting of which can be initiated by the addition of phosphate hardeners. The duration of the setting process is of special interest for an economic lining with short aggregate downtimes. Therefore, in the present work, the influences of two different types of phosphate (aluminium orthophosphate and boron orthophosphate) on the hardening mechanisms of waterglasses are investigated. Time-dependent measurements by dynamic mechanical analysis (DMA) are carried out to observe the setting process. Structural information of the hardened amorphous samples is obtained by means of nuclear magnetic resonance (NMR) spectroscopy. It is shown that the use of different phosphates leads to differences in the setting rate, caused by different modes of network formation. The resultant silicate networks incorporate the aluminium or boron species but differ in the connectivity of those units. In addition, the distribution following the well-known Qn notation of the silicate units is directly influenced by the phosphate type.

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