PAUL'S ELECTRIC DRY" AMALGAMATING PROCESS.

Nelson Examiner and New Zealand Chronicle, Volume XXX, Issue 6, 20 May 1871, Page 6

PAUL'S ELECTRIC DRY" AMALGAMATING PROCESS.

- .From a San Francisco paper. To Ar.ar.iMrN 1 E. Va.vl, San lYanei-co. Deah Slit — As per your request, I herewith forward a synopsis of my experiments on ores of this section with your Dry Amalgamating Process. As soon as practicable, after the receipt of your instructions, we hud made a small cylinder, smd put it in operation at (hia mill (Connor Mill, Drown Gulcll), with which we have made soino twenty-five or thirty tehts on different lots and samples of raw ore j , na well mon numerous lots of tailings that had been worked by the various mill processes. Many of these ores contained lead in all its various forms, as well as I copper, antimony, arsenic, iron, and sulphur, and in every instance, where directions were followed, wo obtained bullion over UOO fine. I will particularize some of the results. On ' Oro Cash' tailings, that had produced by mill working less than thirty dollars per ton, by your process we obtained thirty-nine dollars per ton more. From 'Brown Lode' tailings which had been worked by barrel amalgamation, yielding less than twenty dollars per ton ; by your process wo obtained 180 dollars per ton additional. From Pacific liuil road Lode, we obtained some eighty dollars per ton by your process from tailings that had been worked over three times by barrel amalgamation. From ' Steuben Lode ' we obtained at the rate of seventy dollars per ton, from tailings that had been worked by pan amalgamation, and yielded by pan process sixty dollars per ton with bullion only .061, while by your process the bullion was over .940 fine. After the experiments on a small scale, we arranged (though very imperfectly) for trying on a larger one, and worked several tons of 250 and 300 pounds at a charge, some of which was smelting ore, and in every instance had metal over .900 fine, and got double and quadruple tho amount of fine metal per ton by your process that wo have since obtained by amalgamating in Wheeler's pans. lam myself fully convinced, that your system for ores carrying base metal, and taking into consideration expense of working, is far superior to any known practical system of amalgamation. People are apt to forget, if aware of the fact, that but a small proportion of tho gold and silver bearing ores of this continent will yield more than twenty dollars per ton ; such being the case, cheap systems of manipulation must bo resorted to. So cheap and perfect is your system, that it must eventually become of general use. You have orders for one of your mills complete, to be forwarded early in the spring, others will soon follow, as parties aro beginning to realize the completeness of the process. — Yours truly, Frank Moegan.