METHOD OF BALL MILLING ALUMINUM METAPHOSPHATE

A method of preparing an aluminum metaphosphate (ALMP) particulate product includes charging a milling chamber of a ball mill with grinding media and loading an ALMP feedstock into the milling chamber. The ALMP feedstock is milled with the grinding media into ALMP particles at a particle reduction i...

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Bibliographic Details
Main Authors MURTAGH, Martin Joseph, HILL, Kimberly Errin
Format Patent
LanguageEnglish
French
German
Published 05.04.2017
Subjects
CHEMISTRY
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS
COMPOUNDS THEREOF
CRUSHING, PULVERISING, OR DISINTEGRATING
CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL
INORGANIC CHEMISTRY
METALLURGY
MILLING GRAIN
NON-METALLIC ELEMENTS
PERFORMING OPERATIONS
PREPARATORY TREATMENT OF GRAIN FOR MILLING
TRANSPORTING
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Summary:A method of preparing an aluminum metaphosphate (ALMP) particulate product includes charging a milling chamber of a ball mill with grinding media and loading an ALMP feedstock into the milling chamber. The ALMP feedstock is milled with the grinding media into ALMP particles at a particle reduction index in a range from 0.25 to 0.5. At a plurality of time steps during a period in which the milling is carried out, a fine fraction of the ALMP particles is removed from the milling chamber while a coarse fraction of the ALMP particles remains in the milling chamber for additional milling. An ALMP particulate product with a particle size distribution having a median particle size in a range from 100 μm to 700 μm is prepared from the ALMP particles removed from the milling chamber.
Bibliography:Application Number: EP20150728991