ISSN: 1546-962X
CODEN: JAIOAD
Published Online: 30 July 2010
Page Count: 5

Granular Formulations and Active Ingredient Distribution from a Rotary Spreader

Goss, G. Robert
Oil-Dri Corporation of America, Chicago, IL

Bernal, Y.
Oil-Dri Corporation of America, Chicago, IL

Johnsonbaugh, A.
Oil-Dri Corporation of America, Chicago, IL

Henderson, R.
Oil-Dri Corporation of America, Chicago, IL

(Received 24 November 2009; accepted 21 June 2010)

Abstract

When using a spinner spreader, particle size distribution may affect a gravimetric distribution pattern, larger particles being thrown farther than smaller particles. If active ingredient (AI) concentrations were uneven with respect to particle size, it is possible that a gravimetric distribution analysis (i.e., a spreader calibration) would not accurately reflect AI distribution. This paper discusses granule uniformity and its effect on granular formulation gravimetric distribution and AI distribution. A more uniform particle size provides a more even AI distribution.

Keywords:
particle size distribution, gravimetric distribution, uniformity, rotary spreader, granule

Paper ID: JAI102892
DOI: 10.1520/JAI102892
ASTM International is a member of CrossRef.