Saint Joseph retort process

Saint Joseph retort process

[′sānt ′jō·səf ri′tȯrt ‚prä·səs]
(metallurgy)
An electrothermic retort process for processing zinc ore and zinc from secondary sources into zinc; heat of reaction between the sintered zinc concentrate and the coke mixture is supplied by passage of heavy electric current through the resistance of the charge.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.