The latest revised edition of Mr. C. A. Stetefeldt’s book on the Lixiviation of Silver-Ores, which appeared very recently, contains no mention of the volatilization of silver in chloritization-roasting—an omission which is the more remarkable in view of the fact that in former editions of the work this important subject was noticed. Moreover, Mr. Stetefeldt has discussed it to some extent in his paper on “ The Stetefeldt Furnace,” in which he criticised certain statements made by me before the Colorado Scientific Society, in a paper entitled “ A Review of the Russell Process; ” and Mr. Morse, in his paper on “ The Lixiviation of Silver-Ores by the Russell Process at Aspen, Colorado,” has given statistics showing the loss of silver by volatilization (including the dust loss, which Mr. Morse estimates at not more than 1 per cent.) on more than 30,000 tons of ore roasted, to have been 9.16 per cent. The matter must certainly be deemed important enough to warrant me in returning to it, and offering, with the aid of the figures made public since my first paper, a reply to the criticisms of Mr. Stetefeldt.
The passages of my paper which he deemed to be “ ….Read more