| abstract |
A process for coating granular materials particularly applicable in coating granular materials each having a particle size within the range of 100 to 1,000 microns, wherein supply of a coating or binding liquid is effected in response to a specific measured electro-resistance of a fluidized means of the granular materials while supply of a coating powder is continuously effected in a predetermined variable rate. To this end, at least one electrode cooperates with a portion of the wall forming a coating apparatus to detect the specific electro-resistance which is in turn compared with a predetermined value in a comparison circuit. |