PROCESS FOR THE PREPARATION OF ISOBUTYLIDENE DIUREA
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Jan 15, 2016
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Jul 23, 2012
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Abstract
Disclosed herein is mixed fertilizer according to the process comprising: reacting isobutyraldehyde with an aqueous solution of urea in the presence of a phase transfer catalyst to form isobutylidene diurea, wherein the phase transfer catalyst is a quaternary ammonium salt; and mixing the isobutylidene diurea with at least one of another fertilizer, a secondary nutrient, a trace element, a plant protection agent, a filler, and other fertilizer ingredients, to form the mixed fertilizer. Also disclosed is isobutylidene diurea produced by the process comprising: reacting isobutyraldehyde with an aqueous solution of urea in the presence of a phase transfer catalyst to form isobutylidene diurea; wherein the phase transfer catalyst is a quaternary ammonium salt.
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