a. Physical and chemical concentration of raw ore into a product from
which a metal can be recovered at a profit. ASM, 1
b. Treatment of natural ores or partly processed products derived from
such ores in order to segregate or upgrade some or all of their valuable
constituents, and/or remove those not desired by an industrial user.
Mineral dressing processes are applied to industrial wastes to retrieve
useful byproducts. See also: mineral processing;
Dictionary of Mining, Mineral, and Related Terms