Patent ID: 11905223
Assignee: nan
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  Y | IPC C

Claim 0:
1. A method of forming a fertilizer composition having slow-release nitrogen compounds, the method comprising:
forming a molten mixture of urea, formaldehyde, resin modifier, and one or more of a weak acid catalyst and an emulsifier; and
adjusting, as needed, the temperature of the molten mixture to initiate a reaction of the urea and the formaldehyde to form a fertilizer composition;
wherein the reaction of the urea and the formaldehyde occurs at an initial temperature of about 110° C. to about 125° C. and at a second temperature of about 125° C. to about 135° C.; and
wherein the initial temperature is held for about 10 minutes to about 40 minutes and wherein the second temperature is held for about 10 minutes to about 20 minutes.