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US 2003/0114717 A1Published application
Process for the preparation of ss-mannitol for direct compression
AssigneeMerck Patent GmbH
InventorsMartin Erdmann, Walter Hamm
Life of this patent
Estimating the term…
Abstract
The present invention relates to a process for the preparation of mannitol for direct compression having a content of the β-modification of greater than 90%.
Claims22
Process for the preparation of mannitol for direct compression having a content of the β-modification of greater than 90%, characterised in that
- a) in a first step, an aqueous D-mannitol solution as starting material, spray gas, pulverulent β-mannitol and hot gas are combined,
- b) the resultant pulverulent product is precipitated into a fluidised bed, taken up, fluidised and transported further.
Process according to claim(s) 9 and/or 10, characterised in that the recycled pulverulent material is comminuted, before the recycling, by grinding in the fan (E), which simultaneously serves as conveying element for the powder recycling.
Dependencies are inferred from the claim text.