Electroslag & Electric Arc Furnace Processes
Demand for pressure vessel steels for use in power generation and energy transport applications is increasing in the United States. Coupled with the increased demand is the requirement for higher quality steels that are better able to withstand temperature extremes and mechanical stresses, and that possess greater tensile ductility, impact strengths, and isotropy. One important […]
Electrorefining Copper
This report discusses Electrorefining Copper research conducted to increase the rate, deposit purity, and overall efficiency in industrial processes used to electrodeposit and purify metals by increasing substantially the operating current density range and optimizing the deposition process. Traditionally, copper refineries operate electrolytic cells at a current density of 20 amp/ft². At this current density, the […]
COAL FLOTATION
The flowsheet in this study illustrates the general practice in the United Kingdom. A large number of coal preparation plants have been established by the National Coal Board during the past 10 years. The primary consideration is to achieve a maximum recovery of low ash coal. The secondary consideration is to reclaim the plant water […]
Laboratory Air Classifier
LABORATORY AIR CLASSIFIER OFFERS DRY SEPARATION DATA ON SMALL-SCALE One of the problems confronting many laboratories handling dry grinding and separation problems is the proper method of sizing the products. To meet this need, our Equipment Company has developed the Laboratory Air Classifier for dry materials. The unit is available in two sizes. The Model […]
Laboratory Solvent Extraction and Stripping Units
Laboratory Solvent Extraction and Stripping Units Evaluate Process Prior to Commercial Size Installation The Laboratory Solvent Extraction and Stripping Units provide a completely visual control of the solvent extraction process. There is great flexibility in regulating speed of agitators, recirculation of the organic phase or aqueous phase. The system provides counter-current flow. No pumps are […]
Uranium Solvent Extraction Process
Uranium Geology The ore occurs as uraninite adhering to the outside of sand grains in the Wind River formation which rest unconformably upon Cretaceous shales. The ores are relatively low in clay content and generally regarded as exceptionally clean ores from the standpoint of objectionable impurities. The arkosic sands in which the ore occurs are […]
Recover Concentrate from Thickener Overflow
SRL Pump More Than Pays For Itself in Recovery Of Flotation Concentrate From Thickener Overflow Problem: Froth building up on surface of concentrate thickener tends to carry mineral values to waste. Solution: A small combination sump and overflow box was installed at the base of the thickener tank and a 2″ x 2″ SRL Pump […]
Free Gold in Arsenopyrite, Pyrrhotite, Pyrite
This study deals with an ore containing coarse and fine free gold associated with arsenopyrite, pyrrhotite, pyrite and graphite in a quartz and slate gangue. The sulphides and graphite constitute 10 to 12% of the ore. Treatment required utmost economy. The flowsheet was developed from batch and pilot tests with the required flexibility to permit […]
Quenching Unit
Susquehanna-Western, Inc. Uses Spiral Classifier For Quenching Unit A 36″ x 19′-10″ Spiral Classifier is used for quenching an 800°F calcine at the Karnes County, Texas, uranium mill of Susquehanna-Western, Inc. The coarse —1½” x 0″ hot calcine is fed directly to the Spiral Classifier at the rate of 12.5 tons per hour. The classifier […]
Ceramic Shaft Sleeve For SRL Pump
Ceramic Shaft Sleeve For SRL Pump Increases Part Life By Several Times That of Steel Sleeves One of the problems of concern to operators of centrifugal slurry pumps is the wear of shaft sleeves and the deterioration of packing material in the gland. This matter has also been under study by the Engineering Research and […]