Method for the production of a particle-containing preparation of tetrahydro-3,5-dimethyl-1,3,5-thiadiazin-2-thione

   
   

Described is a process for the preparation of a particulate tetrahydro-3,5-dimethyl-1,3,5-thiadiazine-2-thione product by combining a first aqueous solution comprising methylammonium N-methyldithiocarbamate with a second aqueous solution comprising formaldehyde, followed by separation and drying of the resulting solid, which comprises combining the first and the second aqueous solutions in such a way that the ratio between the concentrations of dithiocarbamate functions and of formaldehyde is essentially constant in the reaction mixture over time during the duration of the reaction.

É descrito um processo para a preparação de um produto particulate de tetrahydro-3,5-dimethyl-1,3,5-thiadiazine-2-thione combinando uma primeira solução aqueous que compreende o methylammonium N-methyldithiocarbamate com uma segunda solução aqueous que compreende o formaldehyde, seguida pela separação e pela secagem do sólido resultante, que compreende combinar as primeiras e segundas soluções aqueous de tal maneira que a relação entre as concentrações de funções do dithiocarbamate e do formaldehyde é essencialmente constante no tempo excedente da mistura de reação durante a duração da reação.

 
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