METHODS OF PREPARING DRY FRIABLE POWDER OF AGROTECHNICALLY ACCEPTABLE ACIFLUORPHENE SALT AND COMPOSITION PREPARED BY THESE METHODS Russian patent published in 2002 - IPC

FIELD: agriculture. SUBSTANCE: invention describes methods of preparing dry friable powder of agrotechnically acceptable acifluorphene salts comprising from about 0.1% to about 80% of active component and citric acid sodium salt as a chelating agent using spraying drier and double drum drier being ratio of citric acid sodium salt to acifluorphene salts = from 0.1 : 100 to 35 : 1. Invention describes also a composition obtained by these methods. Methods provide preparing dry, easily friable, noncaking, solid form of acifluorphene useful for package. EFFECT: improved method of preparing, improved properties of composition. 9 cl, 3 dwg