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

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)

Transparent Polycrystalline Magnesium Aluminate Spinel Fabricated by Spark Plasma Sintering., Sokol, Maxim, Ratzker Barak, Kalabukhov Sergey, Dariel Moshe Peter, Galun Ehud, and Frage Nachum , Adv Mater, 2018 Oct, Volume 30, Issue 41, p.e1706283, (2018)

Al Pulsed Field Gradient, Diffusion-NMR Spectroscopy of Solvation Dynamics and Ion Pairing in Alkaline Aluminate Solutions., Graham, Trent R., Han Kee Sung, Dembowski Mateusz, Krzysko Anthony J., Zhang Xin, Hu Jianzhi, Clark Sue B., Clark Aurora E., Schenter Gregory K., Pearce Carolyn I., et al. , J Phys Chem B, 2018 Nov 27, (2018)

Coupled Multimodal Dynamics of Hydrogen-Containing Ion Networks in Water-Deficient, Sodium-Hydroxide-Aluminate Solutions., Graham, Trent R., Semrouni David, Mamontov Eugene, Ramirez-Cuesta Anibal J., Page Katharine, Clark Aurora Evelyn, Schenter Gregory K., Pearce Carolyn I., Stack Andrew G., and Wang Hsiu-Wen , J Phys Chem B, 2018 Nov 08, (2018)

Optimization of strontium aluminate-based mechanoluminescence materials for occlusal examination of artificial tooth., Jiang, Yanjiao, Wang Fu, Zhou Hui, Fan Zengjie, Wu Chen, Zhang Jie, Liu Bin, and Wang Zhaofeng , Mater Sci Eng C Mater Biol Appl, 2018 Nov 01, Volume 92, p.374-380, (2018)

Thermodynamic and crystallographic model for anion uptake by hydrated calcium aluminate (AFm): an example of molybdenum., Marty, Nicolas C. M., Grangeon Sylvain, Elkaïm Erik, Tournassat Christophe, Fauchet Clémence, and Claret Francis , Sci Rep, 2018 May 21, Volume 8, Issue 1, p.7943, (2018)

Anticorrelated Contributions to Pre-edge Features of Aluminate Near-Edge X-ray Absorption Spectroscopy in Concentrated Electrolytes., Wildman, Andrew, Martinez-Baez Ernesto, Fulton John, Schenter Gregory, Pearce Carolyn, Clark Aurora E., and Li Xiaosong , J Phys Chem Lett, 2018 May 17, Volume 9, Issue 10, p.2444-2449, (2018)

Schiff-base -ate derivatives with main group metals: generation of a tripodal aluminate metalloligand., García-Valle, Francisco M., Tabernero Vanessa, Cuenca Tomás, Cano Jesús, and Mosquera Marta E. G. , Dalton Trans, 2018 May 08, Volume 47, Issue 18, p.6499-6506, (2018)

Removal of sulfate from wet FGD wastewater by co-precipitation with calcium hydroxide and sodium aluminate., Yu, Jicheng, Lu Jia, and Kang Yong , Water Sci Technol, 2018 Mar, Volume 77, Issue 5, p.1336-1345, (2018)

Enhanced upconversion emission of Er/Yb and Er/Yb/Zn doped calcium aluminate for use in optical thermometry and laser induced optical heating., Choudhary, A K., Singh S K., Dwivedi A, Bahadur A, and Rai S B. , Methods Appl Fluoresc, 2018 Jun 21, Volume 6, Issue 3, p.035014, (2018)

Calcium chloride-enriched calcium aluminate cement promotes in vitro osteogenesis., Castro-Raucci, L M. S., Teixeira L N., Barbosa A F. S., Fernandes R R., Raucci-Neto W, Jacobovitz M, Oliveira I R., and de Oliveira P T. , Int Endod J, 2018 Jun, Volume 51, Issue 6, p.674-683, (2018)