Processes
Technical Paper

Mining, ore preparation and ferroniobium production at CBMM

International Symposium Niobium'81

1981
Paraiso Filho, Octaviano de Souza
The paper presents a chronology of the history and development of the Araxa carbonatite complex with respect to the production of Niobium products. Mining and geology are described, including the background on methods used for defining reserves. patterns are described in detail, together with descriptions on impurity removal by calcination and leaching. The ore treatment technology and material flow ferroniobium is produced aluminothermically in simple, yet massive, reactors and details of the process are given. (AU)
Technical Paper (PDF 226.94 KB)
Processes
Related Content
Processes
Tech Talk
Direct observation of Niobium segregation to dislocations in steel
The Charles Hatchett Award is important to identify new applications and markets for Niobium. Introduced over 40 years ago, the Charles Hatchett Award is sponsored by CBMM Niobium and recognizes the best published research on the science and technology of Niobium. The annual award brings together technical experts from around the world and the winning paper is selected by a panel of international experts. The 2017 Charles Hatchett Award winners video presentation shows the acknowledgment of the various questions and uncertainties regarding the alloying elements during the direct observation of Niobium segregation to dislocations in steel. This paper aims to clarify these issues using atomic scale characterization and Niobium as the alloying element in steel for grain refinement through the retardation of recrystallization in the hot rolling process and the cold rolling annealing process of the steel materials.
More
Processes
Technical Briefing
Development of high chromium ferritic steels strengthened by intermetallic phases
More
Processes
Technical Briefing
How much Niobium can I use?
The amount of Niobium we can practically use during the hot rolling of steel products is mainly dependent on the carbon and nitrogen contents of the steel and the furnace reheating and drop-out temperature of the cast product prior to rolling.
More
Processes
Tech Talk
Precipitation of Nb in ferrite after austenite conditioning
The Charles Hatchett Award is important to identify new applications and markets for Niobium. Introduced over 40 years ago, The Charles Hatchett Award is a prestigious recognition that aims to identify new applications and markets for Niobium. The award is sponsored by CBMM | Niobium and recognizes the best published research on the science and technology of Niobium. The annual award brings together technical experts worldwide, and a panel of international experts selects the winning paper. This Charles Hatchett 2014 winners’ presentation unveils the ‘Precipitation of Niobium in Ferrite After Austenite Conditioning’.
More
Niobium transforms materials. Materials that can build greener structures, help make energy cleaner and mobility more sustainable. These are the solutions we need today and for our future.

CBMM is a global leader in the production and commercialization of Niobium products, serving more than 500 customers in 50 countries.

CBMM provides technology for industries such as infrastructure, mobility, aerospace, healthcare, and energy, driving the development and adoption of Niobium across various sectors. 

Legal

Home

Connect
Language
Copyright © 2024