China remains the largest producer of refractories, and is expected to account for more than two thirds of a global output of 37,3 Mt in 2019.
At present, the raw materials market for the refractories sector is very dynamic. We approached Almatis, who is a well known global player in the alumina business. Emre Timurkan (ET), CEO Almatis, was prepared to share with our readers his views. Emre Timurkan has over 20 years experience in the financial markets, having worked in commercial and investment banks globally.
In this work, four alumina-magnesia, cement-bonded castables were tested at high temperature. Strength was determined by bending test at temperature ranging from room temperature to 1550 °C. As a reference, a high alumina castable was also investigated.
Phosphate-bonded refractories may be applied as repairing materials due to their fast setting time and good thermomechanical properties in the 30–1000 °C temperature range. Phosphoric acid and Monoaluminium Phosphate (MAP) solutions are commonly used as main binder additives in chemically bonded compositions, but powdered phosphate compounds can also be applied for this purpose.
A suitable alternative to reducing the starting sintering temperature of ceramic compositions is based on using small contents of mineralizing compounds that may speed up the reaction rate and/or induce the generation of a transient liquid phase in the resulting microstructure.
Orbite Aluminae Inc. provided a general update on its activities and announced that it had finalized negotiations with Outotec and executed the calcination system supply contract.
Almatis/DE announced the completion of the purchase of the alumina refinery at Burnside, Louisiana/US from the Ormet Corporation.