Industrial crystallization of ammonium sulphate from solution after ammonia water FGD process

摘要

The paper describes an industrial application of spent liquid utilization from ammonia water after flue gas desulphurization (FGD) by crystallization from solution [1]. The developed method of crystalline ammonium sulphate production is complementary to ammonia desulphurization process. Basing on the technology described in this paper the ammonium sulphate fertilizer of the average size below 1 mm can be manufactured in an economical way. Product quality meets requirements of the European Union Directive No. 1107/2008, dated 07.11.2008.