BGC Cement can provide various types of lime to suit the demands of a wide variety of industries. We supply lime which is high in purity and low on impurities with a high degree of reactivity making it suitable for use in chemical processing.
By providing high purity lime, BGC Cement assists customers to:
Minimise volume of lime requiredMaximise silo spaceMinimise deliveriesMinimise maintenance (wear & tear) due to low silica and magnesium content
What Limes do BGC Cement supply?
- Quicklime – Delivered in bulk tankers
- Hydrated Lime – For general use, delivered in bulk tankers or bulker bags
- Air En-Trained Hydrated Lime – 20kg sacks, for construction purposes
What is Lime?
- Lime is actually derived from the calcining (burning) of limestone.
- Limestone itself is a general term embracing carbonate rocks or fossils; composed primarily of CaCO3 or combinations of calcium and magnesium carbonate.
- Limestone can be obtained from a quarry, from dredging seas and oceans, or from skeletal fragments of marine organisms.
- Quicklime is obtained by calcining limestone to expel the CO2 from the stone.
- Hydrated Lime is obtained by adding water to quicklime.
Advantages of Lime?
- Lime provides the most economical source of alkali which, aside from its chemical properties, is its primarily use.
- Lime is delivered to the customer dry with no water, eliminating the need and expense of having water delivered to their plant.
- Lime has the highest neutralising capacity per kilogram of dry solids compared to any other alkaline reagent.
- When neutralising sulphuric acids, lime produces fewer total dissolved solids than reagents such as sodium or magnesium, which create soluble reaction byproducts.
- Lime is able to raise pH adequately since it is able to reach pH 12.45.
- Lime reacts quickly with water, enabling the user to ensure pH is correct without fear of overdosing and wasting the reagent.
Uses for BGC Quicklime and Hydrated Lime
- Basic oxygen furnaces
- Electric arc furnaces
- Nonferrous metals
- Aluminium and bauxite
- Heavy mineral sands
- Rare earth elements
Chemical and Industrial
- Pulp and paper
- Precipitated calcium carbonate
- Sugar refining
- Other chemical and industrial
- Asphalt paving
- Soil stabilisation
- Flue gas desulfurisation (FGD)
- Industrial wastewater treatment
- Sewage treatment
- Water purification