| 摘要 |
Additivated sodic bentonite for use in composition of green sand for mold ing of cast parts relates to a composition of additivated sodic bentonite th rough the addition of dextrin and sugar or starch and sugar in specific quan tities during the process of calcic bentonite activation by means of incorpo ration of sodium carbonate into the "in nature" ore, belonging to the field of chemical industry for use in the composition of green sand for cast moldi ng, offering a wide range of advantages in comparison with the existing form ulas.
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