Patent ID: 9657258
Date: 2017-05-23
CPC Classifications: A01M,B08B,C11D

Claim:
1. A method of preparing an agricultural spray tank for use in connection with a second pesticide following use of the tank in connection with a first pesticide, the method comprising: introducing a cleaning mixture into the tank containing a residual amount of the first pesticide, wherein the cleaning mixture comprises allowing the cleaning mixture to remain in the tank for a time sufficient to degrade at least about 50% by weight of the residual amount of the first pesticide, thereby forming a waste mixture comprising degradation products of the first pesticide; and removing the waste mixture from the tank; wherein the first pesticide comprises a first herbicide, and the first herbicide comprises glyphosate, and wherein the transition metal ions are initially added to the tank in a molar ratio of at least about 3:1 with respect to the amount of glyphosate a.e. present in the pesticidal residue.