In early "straight-by way of" urea plants, reactant recovery (step one in "recycling") was accomplished by permitting down the process stress to atmospheric to let the carbamate decompose back again to ammonia and carbon dioxide. Initially, mainly because it wasn't economic to recompress the ammonia and carbon dioxide for recycle, https://coatedureafertilizersuppl01346.madmouseblog.com/18621857/facts-about-dap-fertilizer-price-per-ton-revealed