Animal foodstuff compsns. - coated with molten urea phosphate and urea mixt.

摘要

Prepn. of animal foodstuff compsn. involves melting a mixt. of 35-48 pts. wt of urea and 65-52 pts. wt of urea phosphate at 72-90 degrees C by dispersing the molten mixt. on the surface of an animal foodstuff, then cooling the mixt. A base e.g. soda, chalk, magnesia or potash may be added to the animal foodstuff before impregnation with the urea mixt. and vitamins A, D or E or molasses may be added to the cooled, impregnated foodstuff. The molten urea and urea phosphate mixt. is substantially a eutectic mixt which avoids difficulty in the mixing of the crystals. In a typical mixtures dried beet pulp (500 kg) was mixed with powdered chalk (30 kg) and coated with a molten mixture of urea phosphate/urea (60:40) at 60 degrees C and cooled to give a content of total P 1.47%, Ca 2.39% and total N 5.85%.