| 摘要 |
<p>The present invention concerns a method in which a single process is used in order to produce at least one out of high-purity potassium sulphate (K2SO4), a high-purity manganese compound (manganese sulphate monohydrate (MnSO4·H2O), trimanganese tetraoxide (Mn3O4) or EMM (Electronic Manganese Metal)) and a manganese- and potassium-containing fertiliser from a low-purity manganese- and potassium-containing substance. To elaborate, the present invention concerns a method for respectively producing high-purity potassium sulphate, a high-purity manganese compound and a manure from a low-purity manganese- and potassium-containing substance. Also, the invention concerns a method in which a single process is used in order to simultaneously produce high-purity potassium sulphate and a high-purity manganese compound from a low-purity manganese- and potassium-containing substance. Also, the invention concerns a method in which a single process is used in order to simultaneously produce high-purity potassium sulphate and fertilizer from a low-purity manganese- and potassium-containing substance.</p> |
