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US 7,909,272 B2Granted
Milling process
AssigneeSolvay (Societe Anonyme)
InventorsMarc Thijssen, Maxime Franc
Life of this patent
Estimating the term…
Abstract
Process for milling a substance selected from sodium carbonate, sodium bicarbonate and sodium sesquicarbonate or trona, in which a cleaning agent is introduced into a mill for the purpose of obtaining a powder with a mean diameter of less than 100 μm and of inhibiting the formation of incrustations in the mill.
Claims19
A process for milling a substance selected from the group consisting of sodium carbonate, sodium bicarbonate, sodium sesquicarbonate, and trona, comprising:
- mixing a cleaning agent with the substance, and milling the mixture into a mill, for the purpose of obtaining a powder with a mean diameter of less than 100 μm and of inhibiting the formation of incrustations in the mill, wherein the cleaning agent comprises at least one composition selected from the group consisting of zeolites, dolomite, magnesium hydroxycarbonate, lime, sodium chloride, zinc chloride, sodium sulfate, calcium fluoride, hydrocarbons, talc, fly ash, fatty acids, and fatty acid salts.
Dependencies are inferred from the claim text.