125kw Inductotherm VIP-I Precious Metals Melting System: The furnace was only used for proof of concept in a platinum recovery project and has extremely low hours.
The determination of specific gravity dates from such antiquity, and the various published methods of determining it are so numerous, that one may well be
The Relation Between the “ Effective Hardness ” of Corundum and its Content of Water: A specimen of corundum from Acworth, Ga., which was reputed to be of markedly inferior
The apparatus which I shall describe in this paper has been in use for some time at the Silver Bullion Assay laboratory of the Pennsylvania
Every millman engaged in the operations incident to the handling of crushing-rolls knows that in ordinary practice, when fine product is desired, the ore-materials delivered
Table of ContentsBars from the Liquation FurnaceBars from the Lead-KettlesGouge & Chip SamplingDistribution of Silver in the BarLoss of Lead by VolatilizationSummary Several interesting experiments were made in
Table of ContentsRecipientRefrigeratorThe RetortFlux and ChargeOperationAccuracyFailuresImportant Mercury Assay Procedure Details The dry methods of assaying mercury-ores and other combinations of mercury all rest upon the volatility of
Table of ContentsExperiment No. 1Experiment No. 2Experiment No. 3Experiment No. 4Experiment No. 5 It is a tradition in the brass industry that bismuth is an
Table of ContentsWater-FilmsPreliminary ClassificationQuartz and Galena-CurvesSlope Angles & Water Quantities of Best TreatmentPresent and Proposed Practice ComparedShaker Table Speed The adaptation of European methods of concentrating
The object of the present paper is to call attention briefly to a novel method of analyzing the action of the ordinary gravity stamp, which
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