» Refined Iodine is melted and sprayed at a cold tower to be solidified

Nitrates are obtained by solar evaporation of the brine after extracting iodine. Iodine is obtained by redox reactions, blow out concentration and further refining with hydrogen peroxide, to skip the use of solvents and sulfuric acid which may contaminate the final product. Refined Iodine is melted and solid prilled or flaked to commercial grade.