1 results about "Magnesium potassium sulfate" patented technology

The invention discloses a method for preparing magnesium potassium sulfate by utilizing seawater salt-making bittern, belonging to the technical field of sea salt bittern production. The method for preparing the magnesium potassium sulfate by using the seawater salt-making bittern comprises the following steps: mixing the seawater salt-making bittern and old bittern under stirring, carrying out evaporating and cooling, and separating solids separated out by crystallization so as to obtain a mother liquor; and adding an extracting agent into the mother liquor, carrying out separating so as to obtain an intermediate solid, and carrying out conversion refining and drying so as to obtain a magnesium potassium sulfate finished product. According to the method for preparing the magnesium potassium sulfate by utilizing the seawater salt-making bittern, sodium chloride in the seawater salt-making bittern is removed firstly, so the content of the sodium chloride in the sodium chloride removed bittern is low; the extracting agent is then added into the sodium chloride removed bittern to prepare magnesium potassium sulfate crystals at a low temperature; the magnesium potassium sulfate crystals are subjected to conversion refining and drying to obtain the high-quality magnesium potassium sulfate finished product; and thus, the method provided by the invention has good economic prospects and social benefits.