選鉱と製錬の協力

抄録

lt is well known that mineral beneficiation is ordinarlly performed by moans of minerd drssing followed by metallurgy. in this paper, however, the author classifies some actual interesting examples of special cases other than the above mentioned combination, into the following groups and explains in outline each of them.
(1) The advantage in direct application of metallurgical processes to some kinds of ores or mill products, instead of the usual combination process, on account of difficulty in physically separating their constituent minerals.
(2) The application of any preliminary metallurgical treatment generally termed as “Metallugisches Aufbereitungsverfahren” to some kinds of ores prior to mineral dressing in order to facilitate the separation of -ore minerals by dressing.
(3) The application of any dressing process to half-finished products of metallurgy or during the course of metallurgical treatment.