About Aluminates

Aluminate anion

Aluminates are compounds containing an anion of aluminum and oxygen. Minerals like chrysoberyl are sometimes called aluminates, although they are usually classified as mixed oxides. As minerals, aluminates are much less common than aluminosilicates.

Sodium aluminate has a number of applications including in water treatment and in the papermaking industry. However, the majority of sodium aluminate produced is used for the manufacture of sodium aluminosilicate or titanium dioxide for use in pigments and coatings, a process which improves the pigment's resistance to ultraviolet light. In water treatment it is used as an adjunct to water softening systems, as a coagulant aid to improve flocculation, and for removing dissolved silica and phosphates. In construction technology, sodium aluminate is employed to accelerate the solidification of concrete, mainly when working during frost. Sodium aluminate is used in the paper industry for fire brick production and alumina production.

Potassium aluminate can replace sodium aluminate for applications with Sodium sensitivity. Potassium aluminate is a basic coagulant as a result its use in acidic wastewaters lowers the cost of the treatment compared to the use of other coagulants. Potassium aluminate is also used as a dyeing and printing mordant and as an accelerant in the setting of concrete.

Calcium aluminates are used in the manufacture of refractories and cements. Due to its relatively high cost, calcium aluminate is used in cements only under specific circumstances: when rapid strength development is required at low temperatures, when high chemical resistance is necessary, when refractory concretes need to maintain strength at high temperatures, or when as a component in blended cement require ultra-rapid strength development and controlled expansion.

Recent Research & Development for Aluminates

Chloride Resistance of Portland Cement-Based Mortar Incorporating High Aluminate Cement and Calcium Carbonate., Lee, Yunsu, Lim Seungmin, and Lee Hanseung , Materials (Basel), 2020 Jan 12, Volume 13, Issue 2, (2020)

Rapid Synthesis and Characterization of Pure and Cobalt Doped Zinc Aluminate Nanoparticles via Microwave Assisted Combustion Method., Ramachandran, S, Dash Chandra Sekhar, Thamilselvan A, Kalpana S, and Sundararajan M , J Nanosci Nanotechnol, 2020 Apr 01, Volume 20, Issue 4, p.2382-2388, (2020)

Impact of calcium aluminate cement with additives on dental pulp-derived cells., Messias, Nadyne Saab, Grisote Gabriela, Martorano Antonio Secco, Fernandes Roger Rodrigo, de Oliveira Ivone Regina, Bombonato-Prado Karina Fittipaldi, de Oliveira Paulo Tambasco, and de Castro-Raucci Larissa Moreira Sp , J Appl Oral Sci, 2020, Volume 28, p.e20190105, (2020)

Mechanical and Fracture Properties of Fly Ash Geopolymer Concrete Addictive with Calcium Aluminate Cement., Wang, Yamin, Hu Shaowei, and He Zhen , Materials (Basel), 2019 Sep 15, Volume 12, Issue 18, (2019)

Towards Blue Long-Lasting Luminescence of Eu/Nd-Doped Calcium-Aluminate Nanostructured Platelets via the Molten Salt Route., Rojas-Hernandez, Rocío E., Rubio-Marcos Fernando, Serrano Aida, Salas Eduardo, Hussainova Irina, and Fernandez José Francisco , Nanomaterials (Basel), 2019 Oct 16, Volume 9, Issue 10, (2019)

Nanostructured Nickel Aluminate as a Key Intermediate for the Production of Highly Dispersed and Stable Nickel Nanoparticles Supported within Mesoporous Alumina for Dry Reforming of Methane., Karam, Leila, Reboul Julien, Hassan Nissrine El, Nelayah Jaysen, and Massiani Pascale , Molecules, 2019 Nov 14, Volume 24, Issue 22, (2019)

Calix[4]pyrrole Aluminate: A Planar Tetracoordinate Aluminum(III) Anion and Its Unusual Lewis Acidity., Ebner, Fabian, Wadepohl Hubert, and Greb Lutz , J Am Chem Soc, 2019 Nov 13, Volume 141, Issue 45, p.18009-18012, (2019)

Production of Glycerol Carbonate from Glycerol over Templated-Sodium-Aluminate Catalysts Prepared Using a Spray-Drying Method., Rittiron, Pacharaporn, Niamnuy Chalida, Donphai Waleeporn, Chareonpanich Metta, and Seubsai Anusorn , ACS Omega, 2019 May 31, Volume 4, Issue 5, p.9001-9009, (2019)

Porous spherical calcium aluminate-supported CaO-based pellets manufactured via biomass-templated extrusion-spheronization technique for cyclic CO capture., Li, Hailong, Hu Yingchao, Chen Hongqiang, and Qu Mingyu , Environ Sci Pollut Res Int, 2019 May 29, (2019)

Synergistic potential of 1α,25-dihydroxyvitamin D3 and calcium-aluminate-chitosan scaffolds with dental pulp cells., Bordini, Ester Alves Ferr, Cassiano Fernanda Balestrero, Silva Isabela Sanches Po, Usberti Felipe Rochelle, Anovazzi Giovana, Pacheco Leandro Edgar, Pansani Taísa Nogueira, Leite Maria Luísa, Hebling Josimeri, Costa Carlos Alberto de, et al. , Clin Oral Investig, 2019 May 22, (2019)

Potassium chlorido-tris-(hypersil-oxy)aluminate dimer., Purdy, Andrew P., and Butcher Raymond J. , Acta Crystallogr E Crystallogr Commun, 2019 Jun 01, Volume 75, Issue Pt 6, p.714-716, (2019)

Plutonium and Americium Aluminate Perovskites., Vigier, Jean-François, Popa Karin, Martel Laura, Manara Dario, Blanco Oliver Dieste, Freis Daniel, and Konings Rudy J. M. , Inorg Chem, 2019 Jul 15, Volume 58, Issue 14, p.9118-9126, (2019)

Exploiting in-situ solid-state NMR spectroscopy to probe the early stages of hydration of calcium aluminate cement., Hughes, Colan E., Walkley Brant, Gardner Laura J., Walling Samuel A., Bernal Susan A., Iuga Dinu, Provis John L., and Harris Kenneth D. M. , Solid State Nucl Magn Reson, 2019 Jul, Volume 99, p.1-6, (2019)

Influence of nano-silica additions on hydration characteristics and cytotoxicity of calcium aluminate as biomaterial., El-Hamid, H K. Abd, and Radwan M M. , Heliyon, 2019 Jul, Volume 5, Issue 7, p.e02135, (2019)

Effects of dodecacalcium hepta-aluminate content on the setting time, compressive strength, alkalinity, and cytocompatibility of tricalcium silicate cement., Choi, Yoorina, Bae Jong-Lye, Kim Hee-Jin, Yu Mi-Kyung, Lee Kwang-Won, and San Min Kyung- , J Appl Oral Sci, 2019 Jan 07, Volume 27, p.e20180247, (2019)