Basic magnesium sulfate granule having high crush strength and process for production thereof
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United States of America Patent
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Mar 5, 2013
Grant Date -
Jan 20, 2011
app pub date -
Mar 30, 2009
filing date -
Mar 31, 2008
priority date (Note) -
Expired
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Abstract
A method for producing basic magnesium sulfate granules, by heating a water-containing granular composition to a temperature of 50-250° C. to dryness. The granular composition has a water content of 10-60 wt. % and comprises fibrous basic magnesium sulfate particles, magnesium hydroxide in an amount of 5-300 weight parts per 100 weight parts of the fibrous basic magnesium sulfate particles, magnesium sulfate in an amount of 0.1-200 weight parts per 100 weight parts of a total amount of the fibrous basic magnesium sulfate particles and magnesium hydroxide. This method can give basic magnesium sulfate granules having a low bulk density and a high crushing strength.
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