Technical Report Archive & Image Library (TRAIL) - 424 Matching Results

Search Results

prev Results: 341 - 364 next
open access

Rapid Separation of Heavy Rare-Earth Elements

Description: The U.S. Bureau of Mines investigated the separation of heavy rare-earth elements (REE) in an ion-exchange process. An ion-exchange column consisting of two sections, a loading section and a separation section, provides high levels of REE loading and good REE separation with an expected processing cycle of less than a month, while current ion-exchange technology requires more than 5 months. A different resin is used in each section: sulfonic resin in the loading section and iminodiacetic resin … more
Date: 1995
Creator: Moore, B. W.; Froisland, L. J. & Petersen, A. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Reactivity in the South Spoils and Hillside Dump at the Midnite Mine

Description: The Midnite Mine is an inactive open-pit uranium mine located on the Spokane Indian Reservation in Washington State. Drill samples from two large waste rock dumps on the site, known as South Spoils and Hillside Dump, were collected with a Becker hammer drill and evaluated to determine potential of the rock to generate acid mine drainage (AMD). Waste rock at this mine contains both pyrite and uranium, and AMD effects are more complicated on this site than most in that uranium is soluble in both … more
Date: 1996
Creator: Moore, Bruce W.; Price, Jesse W. & Gardner, Ted
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Reactivity Studies During Drying and Relocation of Lead-Zinc-Gold Tailings: Phase 1 - Preliminary Evaluation and Laboratory Testing

Description: The U.S. Bureau of Reclamation requested U.S. Bureau of Mines (USBM) assistance in developing design data for moving lead-zinc-gold tailings from their current location without disrupting the existing chemically stable conditions. This report presents results of USBM work in determining (1) the minimum required time to air dry the tailings to approximately 20 pct moisture under various drying conditions both in the laboratory and in the field, (2) the degree of oxidation or reduction that occur… more
Date: 1995
Creator: Froisland, L. J. & Lym, P. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Real-Time Monitoring of Field Measurements for Mine Design: Greens Creek Mine, Admiralty Island, Alaska

Description: Abstract: Researchers at the U.S. Bureau of Mines conducted field investigations at the Greens Creek Mine in southeast Alaska for the purpose of validating computer design of mining methods and assessing real-time monitoring capabilities. The field study required the application of new technology because of the remoteness of the study site, the need for timely acquisition of data, and a limited budget for instruments and data acquisition. Various sensors were installed to monitor rock mass defo… more
Date: 1996
Creator: Orr, T. J. & Beus, Michael J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Recent Developments in Water Flooding in Nowata County, Oklahoma: Oil Fields, 1954-55

Description: Report issued by the Bureau of Mines over development of systematic flooding in oil field reservoirs. As stated in the introduction, "this report presents a discussion of four full-scale water-flooding projects in the Delaware-Childers field and 1 pilot project in the Curl Creek field" (p. 1). This report includes tables, graphs, maps, and illustrations.
Date: May 1955
Creator: Eakin, J. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Reconnaissance of the Beluga River Coalfield, Alaska

Description: Report issued by the Bureau of Mines over studies conducted on the Beluga River coalfield "to determine, if possible, which areas were most favorable for developing large reserves of coal suitable for open-pit mining" (p. 1). Description of the coal deposits, and results of the study are presented. This report includes tables, illustrations, and maps.
Date: 1958
Creator: Maloney, Raymond P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Reconnaissance of the Cartersville Manganese Deposits, Bartow County, Georgia

Description: Report issued by the Bureau of Mines over attempts to extract manganese ore from different sources in Bartow County, Georgia. Location, amount, and analysis of the manganese deposits are presented. This report includes tables, and maps.
Date: January 1954
Creator: O'Neill, J. F. & Wyndham, C. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Recovery of Gasoline From Uncondensed Still Vapors

Description: Report issued by the U.S. Bureau of Mines on the possibilities of increasing fuel production from crude oil. Methods of recovering oil that is lost by remaining uncondensed are presented. This report includes tables, graphs, and illustrations.
Date: April 1922
Creator: Dow, Donald B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Recovery of Oil in California By Secondary Methods: In Two Parts - Part 1. San Joaquin Valley Oil Fields

Description: Report issued by the U.S. Bureau of Mines on the study of secondary-recovery methods of oil production in California. The report discusses methods and properties of this type of oil production, focusing on air injection. This report is in two parts, and contains tables and maps.
Date: July 1952
Creator: Loomis, A. G.; Fried, A. N. & Crowell, D. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Recovery of Oil in California by Secondary Methods: In Two Parts - Part 2. Los Angeles Basin and Coastal Oil Fields

Description: Report issued by the U.S. Bureau of Mines on secondary methods of oil-recovery in California oil fields. The main recovery method studied are of the pressure-maintenance type, such as air-injection. The report is divided into two parts, and includes maps and tables.
Date: May 1952
Creator: Loomis, A. G.; Fried, A. N. & Crowell, D. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Reducing Respirable Dust Levels During Bag Conveying and Stacking Using Bag and Belt Cleaner Device

Description: Abstract: The U.S. Bureau of Mines has designed and tested a system called the Bag and Belt (leaner Device (B&BCD) to reduce dust levels in and around the bag conveying and stacking process. The device physically cleans either 22.7 kg (50 lb) or 45.4 kg (100 lb) paper bags by using a combination of brushes and air jets. It is completely self-contained and is kept under negative pressure by a baghouse to ensure that dust and product removed from the bags during cleaning does not flow into the wo… more
Date: 1995
Creator: Cecala, Andrew B.; Timko, Robert J. & Prokop, Alexander D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Reduction of Airborne Dust Generated by Roof Bolt Drill Bits Through the Use of Water

Description: Abstract: In the vast majority of American coal mines, roof bolt holes are drilled dry, mainly because of mine operator concern with the spent water creating adverse working conditions. Wet drilling, however, can increase drilling rates and the effective lifetime of the drill bits used. This study, carried out as part of an ongoing cooperative research program between the U.S. Bureau of Mines and the University of Missouri-Rolla, shows that the large volumes of water conventionally used in wet … more
Date: 1995
Creator: Sundae, Laxman S.; Summers, David A.; Wright, Douglas & Cantrell, Bruce K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Report of the Nonmetals Division: Fiscal Year 1942

Description: Report issued by the Bureau of Mines over the operations of the Nonmetals Division during 1942. The work done by the division is discussed. This report includes tables, illustrations, and photographs.
Date: November 1942
Creator: Ralston, Oliver C. & Stern, A. George
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Report on the Investigation of the Fire at the Liquefaction, Storage, and Regasification Plant of the East Ohio Gas Co., Cleveland Ohio, October 20, 1944

Description: Report issued by the Bureau of Mines over investigations conducted on the 1944 fire at the East Ohio Gas Company. Descriptions of the plant, and construction of the gas tanks are listed. A detailed description of the disaster, and its aftermath are also presented. This report includes tables, maps, illustrations, and photographs.
Date: February 1946
Creator: Elliott, M. A.; Seibel, C. W.; Brown, F. W.; Artz, R. T. & Berger, L. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Reservoir Characteristics of the Eunice Oil Field, Lea County, New Mexico

Description: Report issued by the U.S. Bureau of Mines on the oil and gas production of the Eunice oil field in southeastern New Mexico. Properties of the oil field, and analysis of the oil and gas produced are presented. This report includes tables, maps, illustrations, and photographs.
Date: July 1939
Creator: Anderson, C. C.; Hinson, H. H. & Schroeder, H. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Reservoir-Oil Characteristics, Aneth Field, San Juan County, Utah

Description: Report issued by the Bureau of Mines over studies conducted on the characteristics of reservoir-oil sampled from San Juan County, Utah. The properties of each sample collected are presented. This report includes tables, graphs, maps, and illustrations.
Date: 1959
Creator: Zaffarano, Richard F.; Cupps, Cecil Q. & Fry, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Results of Assays of the New Albany Oil-Shale

Description: Report issued by the U.S. Bureau of Mines on a survey of the New Albany oil-shale deposits in Indiana. The experimental procedures for surveying and sampling these shale deposits are presented in detail. This report includes tables, and graphs.
Date: June 1923
Creator: Reeves, John R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
Back to Top of Screen