| 摘要 |
The present invention relates to a process for producing a fertilizer comprising potassium sulfate, K2SO4, from precipitator ash from a pulp mill, wherein precipitator ash from a pulp mill is provided; water is provided; potassium chloride is provided; and a reaction mixture is provided comprising said water, potassium chloride and precipitator ash, and is allowed to react, wherein potassium sulfate is obtained. |
