Process for the manufacture of fine-crystalline fluorescent brighteners of the bis-triazinylaminostilbene series in the beta -crystal form

Process for the manufacture of fine-crystalline fluorescent brighteners of the bis-triazinylaminostilbene series in the beta -crystal form

A process for the manufacture of fine-crystalline fluorescent brighteners of the bis-triazinylaminostilbene series in the beta -crystal form by mixing the water-containing fluorescent brightener filter cake with an aqueous dispersant solution at temperatures between 70 DEG and 85 DEG C. and grinding...

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Hauptverfasser: SCHENKENBERGER, ERNST, NEUMANN, KONRAD
Format: Patent
Sprache:eng
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Zusammenfassung:A process for the manufacture of fine-crystalline fluorescent brighteners of the bis-triazinylaminostilbene series in the beta -crystal form by mixing the water-containing fluorescent brightener filter cake with an aqueous dispersant solution at temperatures between 70 DEG and 85 DEG C. and grinding at this temperature, is provided.