METHOD FOR PRODUCING AN ANION-EXCHANGING MINERAL AND USE OF SAID MINERAL

摘要

Minerals which reversibly fix ions, in particular NO3<->, i.e. that can exchange them, can be used as fertilizers and soil conditioners, as well as for the purification and treatment of water, particularly for the elimination of nitrate. The minerals used are preferably natural or synthetic mixed value metal-metal-hydroxy salts, e.g. layered double hydroxides (LDHs) which contain exchangeably fixed anions in the intermediary layers. The invention relates to a method for synthesizing particularly suitable LDHs.