Abstract
Eight American and five Japanese chromlte series refractories were tested. Data for chemical compositions, physical properties, mechanical strength, thermal changes, and bursting expansion are given. A procedure for the separation of chrome spinel grains from chromite series refractories by flux, KOH+NaOH+K2CO3+Na2CO3(6:4:5:5), is described and then chemical compositions, heating curves by means of thereto-balance, and solid-solution compositions of chrome spinel grains are written.
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