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Coarse aluminas
Calcined aluminas are widely used in refractories and in the ceramic industry. Specific properties include extreme hardness, refractoriness, high mechanical strength and resistance to wear abrasion, chemical attack and corrosion. These are used as feed material for fused alumina, refractory aggregates, etc.
Coarse alumina grades are white crystalline powders which are predominantly alpha alumina of high chemical purity and consistent physical properties. These products have excellent grindability properties.
| |  |  | | Medium and low soda aluminas
Low and medium soda course alpha aluminas consist of friable aggregates of crystallites having easy grindability and are used in the manufacture of wear-resistant ceramic liners in addition to industrial ceramics and electrical insulators.
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 | | | | Medium and low soda fine aluminas
Medium and low soda fine aluminas have predominantly alpha phase, with controlled particle size distribution. They are widely used in special refractory bricks and shapes, refractory gunning mixes, wear-resistant ceramic parts, ceramic liners, grinding media, HVDC/HVAC insulators, etc when used for high temperature applications. These low soda grades provide excellent hot strength to the refractory body. | | | | | Fine aluminas
These are predominantly fine, alpha aluminas of about 5µ sizes with controlled particle size distribution. They are widely used in high alumina refractories, concast shapes, grinding media, high tension insulators, ceramic liners, etc.
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| | | | | Reactive aluminas | | :: | Reactive fine aluminas
These grades are predominantly alpha alumina having wider particle size distribution. They yield a low-water demand with very good flow properties when used in low cement castables, ULCC and self-flow refractory mixes. They are also recommended for usage in grinding media, wear resistant ceramic components and liners owing to their superior packing characteristics. | | | :: | Reactive aluminas — ultrafine
These reactive alumina grades are white crystalline alpha alumina powders developed for specialised ceramic and refractory applications. These aluminas are characterised by high reactivity, low water absorption and controlled particle size distribution. Typical applications include low cement and ultra low cement castables, slide gates and refractory bricks, resistor cores, new generation ceramics and wear resistant ceramic parts.
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| | | | Polishing aluminas
These grades are developed through controlled calcination and processing in order to obtain consistent particle hardness, shape and size distribution. They provide a choice of oil absorption values within the product range. These are recommended for use in solid bars, emulsions and pastes for metal and stone polishing applications. | | | | | | Hydrates | | :: | Coarse alumina hydrates
Alumina hydrate, which is also termed as aluminium hydroxide and alumina trihydrate, is a crystalline white powder and its chemical formula is Al2O3.3H2O or Al(OH)3. These hydrates are available both in moist and dry forms. Coarse alumina hydrates are recommended in the manufacture of aluminium sulphate (alum), PAC (Poly Aluminium Chloride), zeolite, aluminium fluoride, glass, etc. | | :: | Fine alumina hydrates
These are fine white powders with average particle size ranging from 5 to 15 microns. They are used as fillers in paper, SMC/DMCs and also function as flame retardants in latex, rubbers, plastics, etc.
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| | Coarse Aluminas, corrosion, fused alumina, refractory aggregates, Medium & Low Soda Aluminas, Medium & Low Soda Fine Aluminas, HVDC/HVAC insulators, refractory gunning mixes, wear resistant ceramic parts, ceramic liners, grinding media, Fine Aluminas high tension insulators, Hydrates, Coarse Alumina Hydrates, Aluminium Hydroxide, Alumina Trihydrate, Fine Alumina Hydrates, latex , rubbers, plastics, flame retardants, Brazil, Croatia, Czech Republic, France, Germany, Israel, Mexico, Slovakia, South Africa, USA | |
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