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

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)

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)

Lithium-Aluminate-Catalyzed Hydrophosphination Applications., Pollard, Victoria A., Young Allan, McLellan Ross, Kennedy Alan R., Tuttle Tell, and Mulvey Robert E. , Angew Chem Int Ed Engl, 2019 Aug 26, Volume 58, Issue 35, p.12291-12296, (2019)

Influence of nanostructured calcium aluminate and calcium silicate on the liver: histological and unbiased stereological analysis., Paraš, S, Janković O, Trišić D, Čolović B, Mitrović-Ajtić O, Dekić R, Soldatović I, M Sandić Živković, Živković S, and Jokanović V , Int Endod J, 2019 Aug, Volume 52, Issue 8, p.1162-1172, (2019)

Discovery of Cs(UO)AlO by Molten Flux Methods: A Uranium Aluminate Containing Solely Aluminate Tetrahedra as the Secondary Building Unit., Juillerat, Christian A., Kocevski Vancho, Besmann Theodore M., and Loye Hans-Conrad zur , Inorg Chem, 2019 Apr 01, Volume 58, Issue 7, p.4099-4102, (2019)

Effect of Colloidal Silica on the Hydration Behavior of Calcium Aluminate Cement., Wang, Feng, Chen Pingan, Li Xiangcheng, and Zhu Boquan , Materials (Basel), 2018 Sep 28, Volume 11, Issue 10, (2018)

Preparation and cytocompatibility of a novel bismuth aluminate/calcium phosphate cement with high radiopacity., Wu, Tingting, Yang Shue, Shi Haishan, and Ye Jiandong , J Mater Sci Mater Med, 2018 Sep 04, Volume 29, Issue 9, p.149, (2018)

Smart textile framework: Photochromic and fluorescent cellulosic fabric printed by strontium aluminate pigment., Khattab, Tawfik A., Rehan Mohamed, and Hamouda Tamer , Carbohydr Polym, 2018 Sep 01, Volume 195, p.143-152, (2018)

In Situ Al NMR Spectroscopy of Aluminate in Sodium Hydroxide Solutions above and below Saturation with Respect to Gibbsite., Graham, Trent R., Dembowski Mateusz, Martinez-Baez Ernesto, Zhang Xin, Jaegers Nicholas R., Hu Jianzhi, Gruszkiewicz Miroslaw S., Wang Hsiu-Wen, Stack Andrew G., Bowden Mark E., et al. , Inorg Chem, 2018 Oct 01, Volume 57, Issue 19, p.11864-11873, (2018)