| 摘要 |
Disclosed is a process for preparing a dispersing agent composition in the form of a free flowing powder, said process comprising a step of co-drying a) at least one lignin sulfonate, and b) at least one naphthalene formaldehyde condensate sulfonate, said process comprising the sub-steps of blending an aqueous mixture of a) and an aqueous mixture of b), in order to obtain a blended aqueous mixture of components a) and b), followed by drying said blended aqueous mixture in order to obtain said improved dispersing agent composition in the form of a free-flowing powder and their use in agrochemical formulations.
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