23 Matching Results

Search Results

Advanced search parameters have been applied.
in subjects: "Silicon Oxides"  
Results: 1 - 23
open access

The use of aluminum sulfate for 100 Areas' process water coagulation

Description: Increases in power levels of the Hanford Piles have resulted in increased demands for process cooling water to the extent that the present filter plants are now operating at or above their design capacity. Further power level increases requiring even more cooling water may demand the operation of the filters considerably above design capacity. It has been proposed that by the use of aluminum sulfate, or filter alum, as a process water coagulant and activated silica as a coagulation aid, the pre… more
Date: January 4, 1952
Creator: Woods, W.C.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Technical activities report on Hanford water studies

Description: This report is a comprehensive study of the cooling water systems for Hanford production reactors. It includes: film formation study, water plant flow improvement study, water quality tests, sodium dichromate elimination tests, corrosion in aluminium coagulated water study, and water composition, film formation, and effluent activity relationships. A section on special water studies is also included. 22 figs., 25 tabs.
Date: April 1, 1952
Creator: Fryar, R.M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Water treatment modifications to present areas

Description: It is the purpose of this document to review and up-date the previously presented scope basis for the activated silica installations in light of the existence of the Phase I portion and the present expected water flow requirements of Project CG-558. It is the further purpose to outline the recommended scope bases for the sulfuric acid addition system for pH correction at all areas.
Date: January 26, 1955
Creator: Pearl, W. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Report for General Research for December 11, 1950 to April 2, 1951. (Radium Volume)

Description: The work presented in this volume concludes the research on methods for the recovery of purified radium from K-65 residues. The completion of a final report and an engineering study of the proposed process are underway. The preliminary treatment of the K-65 residues with 15% sodium hydroxide was checked and found to give 84% removal of lead and 40% removal of silica. The combined sodium hydroxide, sodium carbonate treatment for removing additional amounts of lead and achieving a preliminary con… more
Date: May 1, 1951
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

FLUIDIZATION CHARACTERISTICS OF PARTICULATE FILTER MEDIA

Description: Predictions of water velocities at which fluidization and massive entrainment of filter media (sea sand, Ottawa sand, silica, and alumina) will occur in special filter beds are presented. Pressure gradients in the various fluidized beds and the maximum bed expansions expected are tabulated. (auth)
Date: June 12, 1958
Creator: Lee, W.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Proposed Helium Purification System for the Experimental Gas-Cooled Reactor (EGCR)

Description: Liquid and dry processes suituble for the purification of gases by the removal of CO/sub 2/, H/sub 2/O, CO, H/sub 2/, and hydrocarbons are discussed. Recommendations are given for specific processes io be included in a "dry" (no liquid absorbents or chemicals used) purification system for the hellum coolant of the EGCR The recommended processes include (1) a catalytic converter for the oxidation of CO, H/sub 2/, and hydrocarbons to CO/sub 2/ and H/sub 2/O, (2) cooler-condensors for the removal … more
Date: October 16, 1959
Creator: Anderson, F.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Removal of Silica From Solutions of Nuclear Fuels

Description: By the addition of gelatin, small amounts of silica present in nitric acid solutions of metals can be flocculated for ready removal by filtration or centrifugation. In the processing of nuclear reactor fuels by solvent extraction, the prior removal of silica by gelatin reduces emulsification and solids accumulation without complicating product recovery, fission product removal, or waste disposal. (auth)
Date: June 1958
Creator: Groh, Harold J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Characterization of Surfactants in Aluminum-Uranium Fuel Reprocessing Solutions

Description: Surface active materials in aluminum nitrate-nitric acid fuel reprocessing solutions were characterized. Polymerized silica, zirconium- modified silica and soluble dibutyl phosphate species were found to contribute to stable emulsion formation. These surfactants were reduced in effectiveness by added acid. (auth)
Date: October 20, 1959
Creator: Cannon, R. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Corrosion Resistance and Mechanical Properties of Aluminum Powder Products

Description: Experimental extrusions were prepared from mixtures of atomized aluminum alloy and several powdered additives, including SiO/sub 2/, AlPO/sub 4/, and Al/ sub 2/O/sub 3/. Some of the extrusions failed during corrosion testing in water at 290 and 350 C. Others corroded in approximately the same fashion as wrought X8001 alloy. The ultimate tensile strengths of these extrusions at 316 C were approximately two and one-half times greater than that of wrought X8001 alloy. (auth)
Date: March 1, 1959
Creator: Draley, J. E. & Ruther, W. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development of Organic Collectors for the Flotation of Uranium Minerals

Description: A series of organic reagents for the collection and flotation of several secondary uranium minerals has been developed, this being the mono-alkyl nitrogen substitutions of the dithiocarbamate grouping with a chain length of at least eight carbon atoms. In flotation tests, using the potassium salt of n-decyl dithiocarbamate as collector, high recoveries of autunite have been obtained from mixtures of finely-ground synthetic autunite and silica sand. Certain base-metal salts added as conditioning… more
Date: December 10, 1954
Creator: Morris, R. J.; Ehrlinger, H. P., III & Butler, J. N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Evaluation of the hauling of activated silica

Description: A project proposal is now under preparation for converting all areas to the alum and activated silica coagulation process, and modifying the present test installations to permanent facilities. The conversions will be designed to service increased water flows resulting from the reactor plant expansion program now under way. As an alternate to the installation of permanent facilities at the various areas, the possibility of hauling already prepared activated silica from those areas having excess … more
Date: October 5, 1953
Creator: Pearl, W. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

ANALYTICAL PROCEDURE MANUAL FOR A RADIUM RECOVERY PROCESS

Description: A compilation is given of analytical procedures used in the laboratory- scale separation of radium from sulfateinsoluble residues from African pitchblende processing. Included in five alternate procedures are quantitative analyses for silica, lead, copper, molybdenum, barium, nickel, calcium, magnesium, radium, moisture, water-solubles, nitrate, silver, manganese, zinc, carbon dioxide, sulfate, and chromium. (auth)
Date: September 1, 1952
Creator: Moshier, R. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

ELECTRODEPOSITION OF NICKEL ON URANIUM

Description: Electrodeposited nickel coatings on uranium for protection from destructive corrosion in boiling water wns investigated. Correlation between the pretreatment of the uranium and subsequent protection by thin nickel coatings was established. Thin electrodeposited nickel coatings provide better protection when applied to a matte surface produced by blasting with an aqueous suspension of silica (100 mesh) followed by a cathodic treatment in 35 wt% sulfuric acid than when applied to the rough surfac… more
Date: August 31, 1954
Creator: Beard, A. P. & Crooks, D. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Chemical Technology Division, Chemical Development, Section C, Monthly Progress Report, August 1959

Description: The solvent extraction of U from carbonate solutions was studied. The prevention of silica staabilized emulsions in the Amex and Dapex processes by solventcontinuous mixing is reported. The recovery of U and Pu from H/sub 2/SO/ sub 4/ decladding solutions by continuous countercurrent extraction with primary amines, HNO/sub 3/ stripping from primary amine, U/sup 6+/ extraction by primary amine, and U extraction by dialkylphosphoric acid is being studied. Plutonium was effectively freed from Am c… more
Date: September 1, 1959
Creator: Brown, K. B.; Allen, K. A.; Coleman, C. F.; Crouse, D. J. & Ryon, A. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A Gelatin-Filtration Headend for Fuel Reprocessing Solutions From Silicon- Containing Aluminum Alloys

Description: A laboratory study of a gelatin headend process for feed from silicon- containing aluminum fuels and plant salvage solutions is described. The optimum conditions for the gelatin treatment of fuel solutions were to boil a 0.1 to 0.5N nitric acid solution with 100 milligrams of gelatin per liter for 30 minutes. This treatment improved filtration rates and decreased the surface activity of the filtrate for TBP extraction. A number of possible flowsheets for fuel solutions are presented using gelat… more
Date: February 1, 1959
Creator: Newby, Bill J. & Paige, Bernice E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
Back to Top of Screen