Additive for green molding sand

Details Additive for green molding sand Additive for green molding sand

1986-03-11

1987-01-13

Hayes, Lorenzo B.

Compositions: coating or plastic

Coating or plastic compositions

Molds and mold coating compositions

106 3835, 106 389, B28B 734

Patent

active

046362622

ABSTRACT:
A foundry green molding sand composition comprising molding sand, clay and water uniformly admixed with a composition of an alkali metal salt of carboxyhexose or carboxyheptose and an alkanoate salt of magnesium and/or lithium in amounts and proportions sufficient to impart improved green sand properties to said compositions. In the preferred embodiment, the composition is added in the form of about a 50% aqueous solution of sodium glucoheptonate and magnesium acetate which are present in the solution in a weight ratio of about 2:1.

REFERENCES:
patent: 3816145 (1974-06-01), Melcher
patent: 4131476 (1978-12-01), Melcher et al.

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