The patents used in our production processes are No. in Chile for iodine, production of spherical granules for sublimating products; No. 43.644 portable plant for concentrating iodine solutions, No. 50.325 procedure for nitrate, iodine and other product recovery; No. 44.400 particles covered with granules that contain urea and metal nitrate; No. 45.109 method for leaching minerals in situ; and No. 45.603 process for obtaining monohydrate lithium sulfate from natural brines.