Leaching and mining underground carnallite is a new mining technique which is based on the mining area ecological environment without destroying and have low investment and cost. For the temperature which is the key factor to affect leaching and mining carnallite, we found that rising rate of ion concentration of magnesium in leaching and mining liquid is quicker with the increase of temperature by researching model of leaching and mining underground carnallite, stumm equation of carnallite dissolving was established with ion concentration of magnesium in leaching and mining process, and relation of t-T-C_(Mg)~(2+) was established simultaneously, the ion concentration of magnesium in leaching and mining liquid was predicted at a certain time and temperature in leaching and mining process, it made a theoretical guidance for leaching and mining underground carnallite technology.
展开▼
