Obtaining process of additivated sodic bentonite for use in composition of green sand for molding of cast parts and resulting product
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United States of America Patent
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Dec 27, 2011
Grant Date -
Nov 25, 2010
app pub date -
Oct 19, 2007
filing date -
Oct 20, 2006
priority date (Note) -
Expired
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Abstract
Composition and process of a composition of additivated sodic bentonite through the addition of dextrin and sugar (saccharose), preferably refined sugar, or starch and sugar (saccharose), preferably refined sugar, in specific quantities during the process of calcic bentonite activation by means of incorporation of sodium carbonate into the in natura ore, belonging to the field of chemical industry for use in the composition of green sand for cast molding, offering a wide range of advantages in comparison with the existing formulas.
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