Calcium Carbonate Crusher Plant Nigeria
Malaysia-based crushed calcium carbonate producer, SBM has secured a contract from Lhoist SPN Sdn Bhd (“Lhoist”), the Malaysian subsidiary of Lhoist Group, for the supply of crushed calcium carbonate over a period of 13 months commencing July 2015. The Lhoist Group is a Belgium-headquartered global producer of lime, dolime and minerals, with operations in 25 countries in Asia, including Malaysia, North and South Americas and Europe. Lhoist develops mineral and lime-based products for environmental applications and use in the steel, chemical, paper and other industries. The contract with SBM will see the latter supplying to Lhoist a total of 60,000 metric tons of precipitated calcium carbonate grade (PCC-grade) calcium carbonate that are finely crushed to between 30 and 50 millimetres in size over the contract period.
Mr Alex Loo, Chairman and CEO of SBM said, “This partnership with Lhoist Group, one of the world’s leading lime producers, bears testimony to the quality of our calcium carbonate reserves.” In addition to the Lhoist contract, SBM has also marked its first cooperation with a foreign customer as it entered into an agreement to supply an Indonesian pulp and paper company with an initial 5,000 metric tons of crushed calcium carbonate. More orders are expected to follow, subject to confirmation that the quality of the product supplied matches the requirements of the customer.
SBM’s plant at its Gridland Quarry is currently able to crush about 40,000 tons of PCCgrade crushed calcium carbonate per month, or about 400 tons per hour. The Group is also in the midst of constructing a crushing plant and a powder production plant at its Hyper Act Quarry for the production of high-grade ground calcium carbonate. Piling work at the two 7 July 2015 – SBM Resources To Supply Calcium Carbonate To Lhoist Group Page 2 of 2 plants has been completed, while construction and assembly work for the crushing plant has commenced. Based on the progress, the crushing plant and the powder production plant are expected to be commissioned on schedule by the fourth quarter of 2015 and the first quarter of 2016 respectively.
The primary use of ag lime is to raise the pH of acid soils and reduce the concentration of aluminum (Al) in soil solution. Poor crop growth in acid soils is largely due to soluble Al, which is toxic to the root system of many plants. Lime will reduce soluble Al by two reactions: 1) CaCO3 + H2O I Ca2+ + 2OH- + CO2 2) Al3+ [soluble] + 3OH- I Al(OH)3 [insoluble] Additions of ag lime also supply valuable Ca (and possibly Mg) for plant nutrition. Some secondary benefits of neutralizing soil acidity with ag lime include:
• Increased phosphorus (P) availability
• Improved nitrogen (N) fixation by legumes
• Enhanced N mineralization and nitrification
• Better water use, nutrient recovery, and plant performance with a healthier root system
The quantity of ag lime needed to bring a soil to a desirable pH range can be easily determined in the laboratory. Ag lime is most commonly spread uniformly on the soil and then mixed through the root zone. Neutralizing soil acidity is not a one-time process, but must be repeated periodically depending on the soil and environmental conditions. Typical application rates are measured in tons per acre.
Non Agricultural Uses
Limestone is one of the most widely utilized of all earth materials. In addition to its use in building and construction, limestone is used in diverse applications such as air pollution control, treatment systems for drinking water and waste water, soil stabilization, medicines, antacids, and cosmetics.
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