Title: Manufacturing of Hydrochloric acid (HCL)
2) Synthesis process
The process generates hydrogen chloride by burning chlorine in a few per cent excess of hydrogen; chlorine
and hydrogen are obtained as by-products during the manufacture of caustic soda (electrolysis of NaCl)
Process Description
Dry hydrogen is made to burn in acid-resisting burner fitted in a combustion chamber lined with silica bricks
Dry chlorine is passed into the combustion chamber when hydrogen burns in an atmosphere ofchlorine to give to give HCI.
The gas is passed through a Cooler cooled by water spray and then through Absorber through which water
flows down in controlled quantities
The absorber is also cooled by a spray of cold water to remove the heat of absorption of HCI in water. The
solution of HCI flows into Storage Tonk below.
An exhaust fan on the extreme right pumps out the waste gases which escape in the atmosphere.
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