- Method for producing a solid herbicide formulation
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The invention relates to a method for producing a solid herbicide formulation containing a) a herbicide from the group of sulfonylurea, or the salts thereof which are useful in the agricultural domain, b) optionally at least one other herbicide, c) optionally a safener, and d) at least one formulation adjuvant. A suspension is formed in water, consisting of the sulfonylurea a), optionally at least one other herbicide b), optionally a safener c) and at least one formulation adjuvant d). The suspension is adjusted to a pH value between 6.5 and 8 by adding an acid or a base, and is then dried to obtain the solid formulation.
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- Agrochemical formulations for water surface application
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New agrochemical formulations for application to the water of paddy fields, which formulations comprise A) at least one solid core material having an apparent specific density of less than 1 and a particle diameter within the range from about 300 μm to about 1,400 μm, and B) a coating layer comprising at least one biologically active compound, at least one substance having the ability to reduce the interfacial tension between water and air, at least one oily substance and, if appropriate, one or more additives, and the use of such agrochemical formulations for applying biologically active compounds to the water of paddy fields.
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- Process of producing sulfonylurea derivatives
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This invention relates to a process for producing a compound of the formula (I) as shown below. STR1 wherein Q is a condensed heterocyclic group having a nitrogen atom in the bridgehead position which may optionally be substituted, R1 and R2 each are an alkyl group, an alkoxy group or halogen and Z is CH or N, or a salt thereof. The compound (I) or a salt thereof is novel and of value as agricultural chemicals. According to the process of this invention the compound (I) or a salt thereof can be produced in good yield and high purity.
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