potash ores have been mined in the South Harz Potash District by conventional underground room and pillar mining. Two major economic potash-bearing rock types occur in the South Harz District188 with carnallitite being the most abundant in area.Sep 13 2019· The laboratory flotation tests were carried out in saturated sylvinite solutions at a temperature of 20 °C. Chemical composition of potash ore and saturated sylvinite solutions were shown in Table 1. Gemini surfactant N
