Urea condensation compositions and methods of making the same
Urea-aldehyde condensation compositions, processes for preparing the same, and the use of said compositions are disclosed. The compositions can have a nitrogen content that is 100% water soluble and can be used as a fertilizer.
1. A urea condensation composition comprising:
isobutylidenediurea;
mono (ureidomethylene) isobutylenediurea;
bis(ureidomethylene) isobutylenediurea;
at least two, three, or all four methylene urea oligomers selected from the group consisting of methylene diurea, dimethylene triurea, trimethylene tetraurea, and tetramethylene pentaurea; and
less than 15 wt. % urea,
wherein the urea condensation composition has a nitrogen content comprising 100% water soluble nitrogen content.
2. The urea condensation composition of claim 1 , wherein the water soluble nitrogen content comprises 75% or more of cold water soluble nitrogen content.
3. The urea condensation composition of claim 1 , comprising a nitrogen content that is at least 32% by weight of the urea condensation composition.
4. The urea condensation composition of claim 1 , comprising a water soluble nitrogen content comprising 60% or more of cold water soluble nitrogen content.
5. The urea condensation composition of claim 1 , comprising a nitrogen content that is 32% to 42% by weight of the urea condensation composition.
6. The urea condensation composition of claim 1 , comprising a nitrogen content that is 35 to 38% by weight of the urea condensation composition.
7. The urea condensation composition of claim 1 , comprising a water soluble nitrogen content comprising 80% or more of cold water soluble nitrogen content.
8. The urea condensation composition of claim 1 , comprising a water soluble nitrogen content comprising 82% or more of cold water soluble nitrogen content.
9. A method for producing the urea condensation composition of claim 1 , the method comprising:
(a) reacting a solution comprising urea, formaldehyde, and at least one C2-C4 aldehyde under basic conditions to form a first composition; and
(b) acidifying the first composition to form the urea condensation composition.
10. A method for producing the urea condensation composition of claim 1 , the method comprising:
(a) reacting a solution comprising urea and at least one first C1-C4 aldehyde or a derivative thereof under basic conditions to form a first composition; and
(b) reacting the first composition and at least one second C1-C4 aldehyde or a derivative thereof under acidic conditions to form the urea condensation composition,
wherein the at least one first C1-C4 aldehyde is different from the least one second C1-C4 aldehyde.