Llewellyn, T. O. Recovery of silicon carbide from granite sludge Llewellyn, T. O.; Martin, E.; Sullivan, G. V. - Washington Bureau of mines 1975 - 8 p. - RI 8074 . Subjects--Topical Terms: MINERIAMINING Subjects--Index Terms: CARBURO DE SILICIO SILICON CARBIDE Universal Decimal Class. No.: 622