| 摘要 |
TRIAZONE FERTILIZER AND METHOD OF MAKING Inventor: Edwin F. Hawkins A high-yield method producing novel water-soluble triazone compositions has a typical analysis having a yield of soluble triazone at about 48 percent, based on total weight of the reaction product, produced by a novel method in which ammonia/formaldehyde mole ratio is about 0.3, and in which the percentage of ammonia added and reacted during the initial reaction is about 4.5% by weight of total reactants, initial cooking being for about 45 minutes, followed by final cooking for about 10 minutes, both initial and final cooking being at about 90 degrees Centigrade, at a nitrogen content of about 28%, at an initial cooking-pH maintained immediately after ammonia addition, at about pH 9, and at a lower pH during the final cooking resulting from termination of adding further potassium hydroxide, the optimum mole ratio during the process, of reactants urea, formaldehyde and ammonia, for example, being about 0.9:1:00.30; otherwise, the method is a two stage-cooking procedure in which urea and/or particular substituted urea is reacted with particular aldehyde(s) and ammonia and/or particular primary amine(s). A number of novel soluble triazones have been produced at high yields, and found to be effective as fertilizers. |
