Ajka alumina plant accident | Queensland Alumina Limited | Alcoa World Alumina and Chemicals |
In September 2005, Alro bought from Balli Group 67% of Alum a Romanian company based in Tulcea that produced 540,000 tonnes of alumina in 2006 for around US$ 9 million.
Internet publication Crikey describe Alumina's board as "corporate Australia's cosiest and most expensive lunch club".
In 1930 it was referred to as α-alumina trihydrate to contrast it with bayerite which was called β-alumina trihydrate (the alpha and beta designations were used to differentiate the more- and less-common forms respectively).
In 1959, the Pikalevo refinery, an integrated production facility processing nepheline concentrates was commissioned; in 1964, the Pavlodar aluminium smelter in Kazakhstan was put into operation; in 1970, the first batch of products was released by the Achinsk alumina refinery.
For example, in 1886, Charles Martin Hall co-invented the Hall-Héroult process for extracting aluminium from its oxide whilst working in a woodshed behind his family home.
National Aluminium Company Limited is the largest integrated Bauxite-Alumina-Aluminium complex in Asia.
A few years earlier, Henri Étienne Sainte-Claire Deville in France developed a method for making alumina by heating bauxite in sodium carbonate, Na2CO3, at 1200°C, leaching the sodium aluminate formed with water, then precipitating aluminium hydroxide by carbon dioxide, CO2, which was then filtered and dried.
In January 1996, she was promoted to managing director of the Aughinish Alumina division, located on Aughinish Island, Askeaton, County Limerick, Ireland.
A few large-scale units of Vedanta Alumina Ltd and Utkal Alumina International Ltd will be setting up units in the area.
The company set up subsidiaries in Germany and Romania, and acquired majority holdings in the SILKEM, producing zeolites and ground alumina in Kidričevo, Slovenia, and Rudnici Boksita Jajce, which operates a high-grade bauxite mine near Jajce, central Bosnia.
Under these conditions, Valco found it far more economical to import semi-processed alumina from Jamaica and South Korea than to rely on local supplies, despite the discovery in the early 1970s of sizable new deposits at Kibi.
He helped develop building materials using abundant stocks of Kaolinite High Alumina Clay, waste sawdust and woodchips, and waste rice husks.
Spray nozzles are most commonly fabricated from metals, such as brass, Stainless steel, and nickel alloys, but plastics such as PTFE and PVC and ceramics (alumina and silicon carbide) are also used.