AN INVESTIGATION OF BOROGYPSUM UTILIZATION FOR THE PRODUCTION OF TRIPLE SUPERPHOSPHATE CONTAINING BORON FERTILIZERS

摘要

Borogypsum, formed during the production of boric acid, is discharged improperly or dumped into privately constructed dams, which contributes to environmental pollution. On the other hand, production of fertilizers containing boric acid and boron is an expensive process. The utilization of the waste borogypsum in the production of boron-containing fertilizers was investigated in this study. Fertilizers obtained from wastes are highly beneficial for the environment, and additionally, they contain phosphorus, nitrogen, sulfur, calcium, and boron. Thus, industrial scale production of boron-containing fertilizers from borogypsum is an economically novel and environmentalfriendly approach. This study aims at investigating the possible utilization of borogypsum for triple superphosphate production at the laboratory scale. The results of the study illustrate that it is possible to use waste borogypsum for production of triple superphosphate in a continuous-flow process. Thus, utilization of borogypsum is not only an alternative process but also allows the protection of the environment from fluorine and borogypsum wastes.