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

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)

Influence of early mineral deposits of silicate- and aluminate-based cements on push-out bond strength to root dentine., Carmo, S S. do, Néspoli F F. P., Bachmann L, Miranda C E. S., Castro-Raucci L M. S., Oliveira I R., and Raucci-Neto W , Int Endod J, 2018 Jan, Volume 51, Issue 1, p.92-101, (2018)

Enhanced Catalytic Activity, Facile Synthesis and Characterization Studies of Spinel Mn-Co Aluminate Nano-Catalysts., Bhavani, P, Manikandan A, Jaganathan Saravana Kumar, Shankar S, and S Antony Arul , J Nanosci Nanotechnol, 2018 Feb 01, Volume 18, Issue 2, p.1388-1395, (2018)

Effect of Gypsum on the Early Hydration of Cubic and Na-Doped Orthorhombic Tricalcium Aluminate., Kirchheim, Ana Paula, Rodríguez Erich D., Myers Rupert J., Gobbo Luciano A., Monteiro Paulo J. M., Dal Molin Denise C. C., de Souza Rui B., and Cincotto Maria Alba , Materials (Basel), 2018 Apr 07, Volume 11, Issue 4, (2018)

Dissolution Kinetics of Cubic Tricalcium Aluminate Measured by Digital Holographic Microscopy., Brand, Alexander S., and Bullard Jeffrey W. , Langmuir, 2017 Sep 26, Volume 33, Issue 38, p.9645-9656, (2017)

Chlordetect: Commercial Calcium Aluminate Based Conductimetric Sensor for Chloride Presence Detection., Torres-Luque, Magda, Osma Johann F., Sánchez-Silva Mauricio, Bastidas-Arteaga Emilio, and Schoefs Franck , Sensors (Basel), 2017 Sep 13, Volume 17, Issue 9, (2017)

Lactulose production from efficient isomerization of lactose catalyzed by recyclable sodium aluminate., Wang, Mingming, Gasmalla Mohammed A. A., Tessema Habtamu Admassu, Hua Xiao, and Yang Ruijin , Food Chem, 2017 Oct 15, Volume 233, p.151-158, (2017)

Synthesized mesoporous silica and calcium aluminate cement fillers increased the fluoride recharge and lactic acid neutralizing ability of a resin-based pit and fissure sealant., Surintanasarn, Atikom, Siralertmukul Krisana, and Thamrongananskul Niyom , Dent Mater J, 2017 Nov 29, Volume 36, Issue 6, p.706-713, (2017)

Impacts of residual aluminum from aluminate flocculant on the morphological and physiological characteristics of Vallisneria natans and Hydrilla verticillata., Lin, Qing-Wei, He Feng, Ma Jian-Min, Zhang Yi, Liu Bi-Yun, Min Fen-Li, Dai Zhi-Gang, Zhou Qiao-Hong, and Bin Wu Zhen- , Ecotoxicol Environ Saf, 2017 Nov, Volume 145, p.266-273, (2017)

Understanding surface structure and chemistry of single crystal lanthanum aluminate., Pramana, Stevin S., Cavallaro Andrea, Qi Jiahui, Nicklin Chris L., Ryan Mary P., and Skinner Stephen J. , Sci Rep, 2017 Mar 02, Volume 7, p.43721, (2017)

Aluminate Red Phosphor in Light-Emitting Diodes: Theoretical Calculations, Charge Varieties, and High-Pressure Luminescence Analysis., Zhang, Niumiao, Tsai Yi-Ting, Fang Mu-Huai, Ma Chong-Geng, Lazarowska Agata, Mahlik Sebastian, Grinberg Marek, Chiang Chang-Yang, Zhou Wuzong, Lin Jauyn Grace, et al. , ACS Appl Mater Interfaces, 2017 Jul 03, (2017)

Cytotoxicity of New Calcium Aluminate Cement (EndoBinder) Containing Different Radiopacifiers., Huck, Claudia, Barud Hernane da Silva, Basso Fernanda Gonçalves, Costa Carlos Alberto de, Hebling Josimeri, and Garcia Lucas da Fonseca , Braz Dent J, 2017 Jan-Feb, Volume 28, Issue 1, p.57-64, (2017)

Poly(carboxylate ether)-based superplasticizer achieves workability retention in calcium aluminate cement., Akhlaghi, Omid, Menceloglu Yusuf Ziya, and Akbulut Ozge , Sci Rep, 2017 Jan 30, Volume 7, p.41743, (2017)

A non-chiral lithium aluminate reagent for the determination of enantiomeric excess of chiral alcohols., García-Rodríguez, Raúl, Hanf Schirin, Bond Andrew D., and Wright Dominic S. , Chem Commun (Camb), 2017 Jan 19, Volume 53, Issue 7, p.1225-1228, (2017)