BAKU, Azerbaijan, February 11
By Amina Nazarli - Trend:
Technological Design and Implementation in Production Department of the Institute of Chemistry under the Turkmenistan’s Academy of Sciences developed the method for obtaining calcium nitrate tetrahydrate from local raw materials, Trend reports citing Turkmenistan's Golden Age newspaper.
Turkmen chemists created this substance by neutralizing nitric
acid at low temperatures with natural limestone, which is mostly
calcium carbonate.
They used non-concentrated inorganic acid produced by Maryazot
industrial enterprise, marble processing waste, chemically
precipitated chalk, and calcite - calcareous spar as reagents.
Scientists from the Chemistry Institute, Maryazot and the Asia Onumi enterprise collaborated to produce over 3 tons of a pilot reagent, which was then tested in the water cooling system of the Kiyanlin Polymer Plant.
The experiment results revealed that the product made from local raw materials increases the hardness of water and provides acid-base buffering, which protects pipes from corrosion.
Calcium nitrate tetrahydrate is commonly used in industrial production to protect cooling systems from corrosion. Calcium nitrate is also used as a nitrogen fertilizer in the agro-industrial sector.
Kiyanlin Polymer Plant annually purchases 100 tons of calcium nitrate from foreign companies, for this purpose.
A patent application for the authorship of this method for obtaining calcium nitrate tetrahydrate from local raw materials has already been submitted to Turkmenistan's Finance and Economy Ministry's State Intellectual Property Service.