Beneficiation of olivine foundry sand by differential attrition

Details Beneficiation of olivine foundry sand by differential attrition Beneficiation of olivine foundry sand by differential attrition

1976-12-10

1977-08-02

Custer, Jr., Granville Y.

Chemistry of inorganic compounds

Silicon or compound thereof

Oxygen containing

241 14, 241 21, 241 24, C01B 3322

Patent

active

040396258

ABSTRACT:
A high quality olivine foundry sand is produced from olivine-containing rock by wet differential attrition grinding followed by a size separation to remove finely-divided gangue materials. The olivine sand product displays rounded grains, has a low impurity content and produces castings having superior surface quality.

REFERENCES:
patent: 1898371 (1933-02-01), Hutchins
patent: 2232696 (1941-02-01), Earle
patent: 3075710 (1963-01-01), Feld et al.

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