Production of animal feed grade biuret
US4540820A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 3, 1983 |
| Grant date | Sep 10, 1985 |
| Priority date | — |
| Expiry date | Jan 3, 2003 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA23K50/15
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Preparation of a composition particularly suitable for use as feedstock in the production of animal feed grade biuret by solid state pyrolyzation thereof in a recirculating oven, which composition comprises from about 37% to about 25% urea, from about 45% to about 60% biuret, and from about 3% to about 20% cyanuric acid, by weight, such preparation involving sparging air or other non-reactive gas through a urea charge at a temperature of from about 145.degree. C. to about 165.degree. C. and at a rate of between about two to about ten cu. ft. of gas/hr/lb of urea for a period of at least four hours, then cooling and comminuting the product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.