Table of ContentsExhaust System Design CharacteristicsExhaust System InstallationsSecondary Crushing PlantHousekeeping In 1947 an Industrial Hygiene Department was organized to represent and assist the four western
Table of ContentsScreening MachineryGravity-bar ScreenRevolving ScreensShaker ScreensVibrating ScreensAnthracite Screening PracticeAbrasion and CorrosionMethods of Estimating Size of ScreensBituminous Screening PracticeSizing EquipmentEfficienciesRelation of Size Consist of Feed
Table of ContentsBeryllium MineralsLithium MineralsTantalum-Columbium MineralsSheet MuscovitePegmatite DepositsDevelopment of Reserves Granitic pegmatite deposits are the chief source of commercial feldspar, sheet mica, beryllium, tantalum-columbium,
In general, the beneficiation of sand and gravel consists of the removal of certain low specific gravity deleterious particles from the sand and gravel. These
Table of ContentsStructural Uses of Lightweight AggregatesTypes of AggregatesNaturally Occurring Aggregates Lightweight aggregates have been in use for many years in the United States but
Table of ContentsDrilling and BlastingHaulageVentilationPotash Co. of America Commercial beds of sylvite ore were discovered by the Snowden & McSweeney Co. while drilling a wildcat
Table of ContentsAsh HandlingLift Speeds Timber HandlingHardening for Increased Bit LifeCrushing Plant Dust Control at The Ray Mines Division, Kennecott Copper Corp.Transfer StationHousekeeping How much
Table of ContentsThe Filter MechanismThe Filter in ActionCapacity of the MachineDewatering Effect One of the chief difficulties with which the operator of a coal washing
Table of ContentsSand-preparation PracticePresent InvestigationThe Mineral Dressing ProblemChemical TreatmentsAttrition Scrubbing and Grinding The problem of producing a uniform, medium-fine sand for glass-furnace feed has been
Manganese Products, Inc. has developed a sulphurous-sulphuric acid leaching process for the recovery of manganese from low-grade, intermediate manganese ores. By the term “intermediate manganese
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