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SANTOSH CHEMICALS

AN ISO 9001 : 2000 COMPANY

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Steel:
Dolomite and high calcium quicklime are used in steel converters and electric arc furnaces as a basic flux in slag formation to remove impurities such as silica, phosphorus and sulfur. On a world-wide basis, steel remains the number one volume market for lime products.

Constructions:
Infrastructure is essential for growth with the timely, dependable movement of goods and services. Lime is a vital chemical used in building this infrastructure. From the addition of lime to control expansive clays in highway and airport construction to special hydrated dolomitic limes for increased masonry bond strength in buildings, lime has met this challenge and will continue to do so.

Environmental:
Environmental uses of lime are many and ever increasing. For example, Flue Gas Desulfurization (FGD) at coal-based power plants are one of several other industries that use lime for removing sulfur dioxide from their stack emissions. In industrial wastewater treatment, lime is used to neutralize a wide variety of industrial waste streams and as a reagent for environmental remediation projects. In biosolids treatment, lime-treated wastewater residuals produce disposable material that can be used for land applications.

Metal /  Mining:
Iron, aluminum, copper, gold, silver, uranium, zinc, etc. are just a few of today's metals that are quite visible and some not so visible in our everyday lives. Less well known is the fact that lime is used in the mining of many raw metal ores and in the beneficiation steps for producing these important metals. In today's efficient gold extraction processes, micron-sized gold grains can be extracted from the crushed ore with the use of hazardous chemicals that are kept safe and manageable with the addition of lime. This gold can be found on many of the electrical contacts in our PC's.

Copper:
In copper industry lime is used for pH regulation in heap leaching and the flotation process.

 

 

Aluminium:
In aluminium production, lime is used in the Bayer bauxite process to recover the caustic leaching solution and to enhance the removal of impurities; for example, silica compounds. Additionally, lime can be used in gas scrubbing processes for increased environmental pollution abatement.

 

Chemicals:
Lime has numerous applications in the chemical industry thanks to its natural properties and competitive price.

It's used in the production of chemicals that can use the calcium and/or hydroxide molecule. In addition to being incorporated into other chemicals, lime's pH control abilities are readily utilized. Typically, process waters in the chemical industry require treatment with lime to correct its pH and adjust mineral content. Quite often, acidic waste waters are treated with lime before recycling or release into the sewage system.

Municipal:
In meeting the growing water requirements of our population and industries, we must use more plentiful raw water sources such as rivers, lakes, high-volume wells, etc. Generally, these sources must be treated to meet our end use needs, including municipal drinking water quality standards. Not only does lime play an important role in these purification processes, it is also used in pumping the water safely to the customers.

Part of the water that we "borrow" every day becomes contaminated and needs to be re-processed for discharge into the environment or reused. Again, lime is there to assist in the retreatment processes plus one other important feature, disinfection of the removed contaminants before disposal. This can be achieved via pH control or taking advantage of quicklime's exothermic heat release property when mixed properly with water.

Paper / Pulp:
Written communication is a vital part of our daily life and the use of paper greatly enhances this communication method. The primary starting material for paper is a tree. The beginning of paper is the extraction of "paper" cellulose from trees - the pulping process, and ends with the alignment, linking, and filling of this fibrous matte on the "wires" of a modern, high-speed paper machine. From beginning to end, lime is involved in the pulp and papermaking processes.

Pulp:
In the pulping process, lime is used to recover valuable caustic soda in the pulp-making process. Additionally, lime can also be used in applicable water softening processes for the pulp and/or paper mill.
 
Paper:
As the paper industry has moved to the alkaline paper making process, this has opened the door to the use of different filler and coating minerals/chemicals - one of which is Precipitated Calcium Carbonate (PCC). When used as a filler, it enhances major paper properties such as whiteness (brightness), opacity, and texture. In new coatings arena, PCC or blends of other coating materials allow for better finishes and the use of modern high speed printing techniques.

 

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