Process for the preparation of lactosylurea, its purification and its conversion to the corresponding N-hydroxymethylated derivative
US4267314A · kind A · utility
0Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 12, 1979 |
| Grant date | May 12, 1981 |
| Priority date | — |
| Expiry date | Feb 12, 1999 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA23K50/15
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the preparation of lactosylurea and the N-methylol derivative thereof which are usable as feed supplements for ruminants. According to this process, lactose and urea are heated to 70.degree.-110.degree. C. with a minimum of water and, if possible, this water is eliminated during the reaction. The crude reaction product can be purified by grinding with ice-water or ethanol and subsequent draining so as to eliminate by dissolution in such solvants the unreacted urea. The corresponding N-methylol derivative is obtained by the reaction with formaldehyde.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.