| abstract |
The present invention relates to a process for the preparation of potassium carbonate (K 2 CO 3 ) by washing carbon dioxide-containing exhaust gases, wherein potassium chloride or potassium hydroxide-containing wastewater generated during potash mining is used as a washing solution. On the one hand, the disposal logistics of waste dumping wastewater produced by potash mining are favored by the inventive method, and on the other hand, the CO 2 load in the exhaust gas of industrial plants is reduced. |