Patent ID: 8492309

Claim:
A process for preparing a tank-mix herbicidal composition, the process comprising admixing in a suitable vessel with agitation (i) water in an amount suitable for application to a plant and/or soil surface by spraying; (ii) a herbicidally effective amount of an aqueous concentrate glyphosate salt composition; and (iii) an aqueous solution of one to a plurality of salts of a phenoxy-type herbicide, selected from the group consisting of phenoxyacetic acids, phenoxypropanoic acids, phenoxybutanoic acids, benzoic acids, picolinic acids, pyridinyloxyacetic acids, and enantiomers and racemates thereof, in an amount providing a glyphosate to phenoxy-type herbicide a.e. ratio of about 1:5 to about 20:1; wherein the aqueous concentrate glyphosate salt composition comprises glyphosate, at a total a.e. concentration not less than about 360 g/l, in anionic form accompanied by low molecular weight non-amphiphilic cations in a total molar amount greater than 110% to a maximum of about 120% of the molar amount of said glyphosate, said cations comprising potassium cations and less than 50% of low molecular weight organic ammonium cations by molar amount of all low molecular weight non-amphiphilic cations present.