Could someone please provide me with some information on sulfur-based compound fertilizers?

The present invention discloses a method for producing sulfur-based compound fertilizers. It belongs to the chemical industry. The known methods for producing sulfur-based compound fertilizers involve using materials such as potassium chloride, sulfuric acid, gaseous ammonia, urea, and monoammonium phosphate as raw materials. Its production cost is high, and the problem of \"scarring\" cannot be resolved during the granulation process. The objective of the present invention is to provide a production method for sulfur-based compound fertilizers, which are manufactured using raw materials such as potassium chloride, sulfuric acid, gaseous ammonia, and urea. Its characteristic is that, during the acid mixing process, superphosphate and phosphogypsum are used in place of monoammonium phosphate. This reduces production costs and solves the “scarring” problem.

http://www.brsbox.com/filebox/down/fc/99a8c1f982610f477d2dbba97db9cc8f This post was last edited by vivasun851228 on 2009-4-14 19:16 ]

Is what’s on the second floor potassium bisulfate and phosphate rock?