· The amount and composition of refinery residue depend on the purity of the bauxite ore and extraction conditions, and differs between refineries. The refinery residue is usually stored in engineered disposal areas that eventually have to be revegetated. This is challenging because of the alkaline and sodic nature of the residue. At Alcan Gove's bauxite refinery in Gove, Northern Territory, Australia, research into revegetation of bauxite residue …Cited by: 74
Bauxite residue is a by-product of the Bayer Process. It is primarily composed of the insoluble fraction of the bauxite ore that remains after extraction of the aluminium-containing components. Iron oxides (10 – 30%), titanium dioxide (2 – 15%), silicon oxide (5 – 20%) and undissolved alumina (0 – 20%) make up the residue, together with a wide range of other oxides which will vary according to the initial bauxite source.
Mining and Refining – Process. The Bayer Process was invented and patented in 1887 by Austrian scientist Karl Josef Bayer. Two to three tonnes of bauxite are required to produce one tonne of alumina. 90% of the global alumina supply of around 90 million tonnes is used in aluminium production. Alumina refineries tend to be lo ed close to bauxite mines and/or ports for efficient transport of raw …
Bauxite refineries produce alumina (aluminum oxide), which is used to create aluminum metal. Bauxite is also used to manufacture other industrial products, such as abrasives, cement and chemicals. There are two operating bauxite refineries in the United States, both of which are lo ed in Louisiana. The most frequently-occurring radionuclides and their decay products decay products The atoms formed …预计阅读时间：3 分钟
: refinery process byproducts, such as bauxite residue and sand, remaining after extraction of alumina from bauxite in refineries. we have dry residue filtered cake, thickened 'solar' (natural evaporation storage and wet storage areas. Construction and Design . Typically, both mine tailings and alumina refinery residue storage facilities are constructed of earthen文件大小: 879KB
Alkalinity conversion of bauxite refinery residues by neutralization. Download. Related Papers. Comparison of several different neutralisations to a bauxite refinery residue: Potential effectiveness environmental ameliorants. By Malcolm Clark. Geochemistry of Bauxite Refinery Residues Neutralise by Different Methods.
Mar 11, 2019 · The largest waste by-product generated in the Bayer bauxite refining process is bauxite residue, commonly called red mud. An enormous quantity of caustic red mud is generated worldwide every year, posing a very serious and alarming environmental and safety problem.预计阅读时间：10 分钟
OverviewProductionCompositionResidue storage areasUseSee alsoAdditional referencesExternal links and further readingRed mud, formally termed bauxite residue, is an industrial waste generated during the processing of bauxite into alumina using the Bayer process. It is composed of various oxidecompounds, including the iron oxides which give its red colour. Over 95% of the alumina produced globally is through the Bayer process; for every tonne of alumina produced, approximately 1 to 1.5 tonnes of red mud are also produced. Annual production of alumina in 2020 was over 133 million tonnes resulting in the generatio…Wikipedia · CC-BY-SA 许可下的文字
· Feb 05, 2021 · The major elemental composition of bauxite residue is generally similar throughout the world, but their percentage distribution varies from refinery to refinery depending on the raw bauxite and extracting process (Xue et al., 2016b; Rai et al., 2017).The variation in constituents is presented in Table 1 (Khairul et al., 2019; Evans and History, 2016).Cited by: 4