1
Glenn M Blouin: Method for applying coatings to solid particles. Tennessee Valley Authority, Robert A Petrusek, November 9, 1976: US03991225 (66 worldwide citation)

The apparatus provides a homogeneous (with respect to particle size), dense, mass of sized particles in random motion so that highly uniform coatings of the same or of different solids can be applied to each particle by conventional spray-coating with the liquified coating material(s). The apparatus ...


2
Glenn M Blouin: Production of high-strength, storage-stable particulate urea. Tennessee Valley Authority, Robert A Petrusek, May 6, 1986: US04587358 (21 worldwide citation)

One approach to improving storage stability, particularly that attribute characterized by reduction in the tendency for caking during storage of freshly prepared urea particles such as granules, is to treat the surface areas of the freshly prepared particles/granules with appropriate amounts and kin ...