HERBICIDE COMPOUND PREPARATION MODE

FIELD: agriculture. ^ SUBSTANCE: proposed is improved method of preparing a herbicide compound which active component is diethylethanolamine salt of N-1,3,5-triazinylaminocarbonylarylsulphonamide with general formula of: , where R1=Cl or COOCH3; R2=H or CH3; R3=OCH3 or N(CH3)2; R4=CH3, ONC(CH3)2 or ONC(CH3)C2H5; this type compounds are used in the sphere of agriculture as herbicides and phytohormones. The method envisages condensation of arylsulphonylizocyanate with replaced 1,3,5-aminotriazine in an organic solvent medium, treatment of the N-1,3,5-triazinylaminocarbonylarylsulphonamide being generated with diethylethanolamine, water extraction of the salt having generated and separation of the water stratum with the water eventually delivered for admixture of additive components. N-1,3,5-triazinylaminocarbonylarylsulphonamide treatment includes two phases: first diethylethanolamine becomes batched to the N-1,3,5-triazinylaminocarbonylarylsulphonamide in an organic solvent medium until the medium pH value in the water stratum is equal to 8.29.4 with the free diethylethanolamine concentration amounting to 0.31.0%; after that after the water stratum separation diethylethanolamine is added to the water until the medium pH value is equal to 9.39.7 with the free diethylethanolamine concentration amounting to 1.22.0%, the water is delivered for admixture of additive components and the organic stratum to have undergone regeneration is returned to the arylsulphonylizocyanate retrieval phase. ^ EFFECT: increased target product output. ^ 21 ex