silica can only be dissolve by using hydrofluoric acid
The mineral component of cement are,Calcium oxide - CaOSilicondioxide - SiO2Aluminiumtrioxide - Al2O3Magnesiumoxide - MgOFerrousoxide - Fe2O3AlkaliesSulphur trioxide - SO3
calcium ore
India is producing 79 different minerals (excluding fuel and atomic resources). Main of them are iron ore, manganese, mica, bauxite, chromite, limestone, asbestos, fluorite, gypsum, ochre, phosphorite and silica sand.
ORE
The main impurities in iron ore are silica, alumina, phosphorus, and sulfur. These impurities can affect the quality of the iron produced during the smelting process and need to be minimized through beneficiation processes.
ore
Well, darling, calcium is extracted from its ore through a process called electrolysis. First, the ore is heated to form calcium oxide, then it's mixed with aluminum and subjected to electrolysis to produce calcium and aluminum oxide. It's like a science experiment, but with more sparks and less explosions.
Silicate, fluorite, hematite, beryl, and galena are all types of minerals, each with distinct compositions and properties. Silicates are a broad group of minerals containing silicon and oxygen, while fluorite is a halide mineral composed of calcium and fluorine. Hematite is an iron oxide mineral, often associated with iron ore, whereas beryl is a beryllium aluminum silicate, known for its gem varieties like emerald and aquamarine. Galena is a lead sulfide mineral and is the primary ore of lead.
Limestone is primarily composed of the mineral calcite (calcium carbonate), which is its main ore mineral. In some cases, limestone can also contain other minerals such as dolomite (calcium magnesium carbonate) and aragonite. While limestone itself is not typically mined for metals, it is a valuable source of calcium for various industrial applications and can serve as a raw material in cement production. Additionally, impurities in limestone can include clay, silica, and iron oxides, which can influence its uses and properties.
Colbat, iron ore, petroleum, salt, timber, silica, and nickel
matials
Impurities commonly found in bauxite ore include iron oxide (rust), silica (sand and quartz), and various other minerals. These impurities must be removed during the refining process to produce high-purity alumina for aluminum production.