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Root cause analysis and control of acid mist formation in the sulphur-burning sulphuric acid production

HE Runlin;ZHANG Weihong;Guizhou Kailin Group Co.,Ltd.;Guiyang Kailin Chemical Co.,Ltd.;  
Many factors can cause the formation of acid mist.One factor is the water,the water in the air and the water formed during the combustion of organic materials from the liquid sulphur in the sulphuric acid production are introduced into the operating system.Other factors include the unit operation of acid temperature control,acid concentration control,and equipment malfunction. Process improvement and preventive measures have been proposed safter the integrated study of the acid mist formation mechanism,cause analysis,and hazard assessment to reduce the formation of condensed acid and to ensure the safe and stable operation of the sulphuric acid production in a long term.
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