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Actinide recovery from combustible waste: the Ce(IV)-NHO/sub 3/ system. Final report
Actinides in ash can be leached effectively by refluxing with Ce(IV) in HNO/sub 3/; solubilization of actinide in ash was greater than or equal to 95% at ash concentrations to 30 g/l in stirred leachant. Plutonium and americium were the actinides present in the ash. Solubilized plutonium and americium were recovered from Ce(IV)-HNO/sub 3/ solution by solvent extraction. Extraction of plutonium into 30% tributyl phosphate in n-dodecane gave 99.99% recovery. The plutonium-depleted solution was then extracted with 30% dihexyl-N,N-diethylcarbamolylmethylenephosphonate (DHDECMP). Americium recovery was 99.64%. The Ce(IV)-HNO/sub 3/ system was compared with the HF-HNO/sub 3/ system now in common use. Advantages of the former included less equipment corrosion, no volatilization of silica, safe oxidation of carbon residues, minimal secondary waste (Ce is recycled), and better solubilization of actinide in the initial contact. However, additional contacts do not significantly improve solubilization, and a small fraction of actinide is not solubilized with Ce(IV)-HNO/sub 3/ that can be solubilized by HF-HNO/sub 3/. The effect of the fission product ruthenium on the dissolution of actinides in the Ce(IV)-HNO/sub 3/ system was investigated briefly, and a method for removing the ruthenium electrolytically was developed. Several process flowsheets were also considered. Actinide recovery requirements will suggest which …
Date:
September 14, 1979
Creator:
Thompson, G. H.; Childs, E. L.; Kochen, R. L.; Schmunk, R. H. & Smith, C. M.
Object Type:
Report
System:
The UNT Digital Library
Aerial Radiometric and Magnetic Survey: Dillon National Topographic Map, Idaho and Montana, Volume 1
This report is the first volume of a two-part set documenting the results of the analyses of the airborne gamma radiation and total magnetic field survey that was flown for the Dillon National Topographic Map NL12-7.
Date:
May 14, 1979
Creator:
Geodata International, Inc.
Object Type:
Report
System:
The UNT Digital Library
[Agenda of the LULAC National Executive Board Meeting, July 14, 1979]
Agenda for a League of United Latin American Citizens National Executive Board Meeting, printed on LULAC letterhead. The meeting was held at Ramada Inn in Albuquerque, New Mexico, on July 14, 1979.
Date:
July 14, 1979
Creator:
Bonilla, Rubén, 1946-
Object Type:
Text
System:
The Portal to Texas History
The Albany News (Albany, Tex.), Vol. 103, No. 51, Ed. 1 Thursday, June 14, 1979
Weekly newspaper from Albany, Texas that includes local, state and national news along with extensive advertising.
Date:
June 14, 1979
Creator:
Lucas, Donnie
Object Type:
Newspaper
System:
The Portal to Texas History
The Allen American (Allen, Tex.), Vol. 9, No. 82, Ed. 1 Monday, May 14, 1979
Semiweekly newspaper from Allen, Texas that includes local, state, and national news along with advertising.
Date:
May 14, 1979
Creator:
Camper, Buddy
Object Type:
Newspaper
System:
The Portal to Texas History
The Allen American (Allen, Tex.), Vol. 9, No. 91, Ed. 1 Thursday, June 14, 1979
Semiweekly newspaper from Allen, Texas that includes local, state, and national news along with advertising.
Date:
June 14, 1979
Creator:
Camper, Buddy
Object Type:
Newspaper
System:
The Portal to Texas History
Alternative oxidizers for strip coal mine blasting agents. [Including study of possible substitutes; 53 references]
Since ammonium nitrate manufacture is dependent on natural gas, a shortage in natural gas could lead to a critical shortage in coal by limiting the availability of ammonium nitrate for blasting. The purpose of this study was to assess the future availability of ammonium nitrate and to evaluate the potential of alternative oxidizers not dependent upon natural gas for use in blasting agents. Increased storage capacities and rapidly increasing levels of relativey cheap imported ammonia appear to ensure the availability of adequate levels of ammonium nitrate in the near future. In the longer time frame, rising energy costs have increased the potential for basing ammonia production on alternative sources of hydrogen as well as obtaining natural gas from relatively unlimited unconventional sources. While still somewhat uncertain, such unconventional sources appear to have sufficient potential to ensure the availability of ammonium nitrate even long term. However, there are several oxidizers that could be considered as possible replacements for ammonium nitrate if needed. After a critical evaluation two possible alternatives are recommended for further study: the use of sodium nitrate as a partial replacement and the development of a new type of blasting agent based upon water as the main oxidizer.
Date:
March 14, 1979
Creator:
Sudweeks, W. B. & Collins, T. K.
Object Type:
Report
System:
The UNT Digital Library
The Alto Herald (Alto, Tex.), Vol. 84, No. 5, Ed. 1 Thursday, June 14, 1979
Weekly newspaper from Alto, Texas that includes local, state, and national news along with extensive advertising.
Date:
June 14, 1979
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Altus Times-Democrat (Altus, Okla.), Vol. 53, No. 11, Ed. 1 Sunday, January 14, 1979
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 14, 1979
Creator:
Gilmore, Robert K. & Hart, Sandra
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Altus Times-Democrat (Altus, Okla.), Vol. 53, No. 36, Ed. 1 Wednesday, February 14, 1979
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 14, 1979
Creator:
Gilmore, Robert K. & Hart, Sandra
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Altus Times-Democrat (Altus, Okla.), Vol. 53, No. 57, Ed. 1 Wednesday, March 14, 1979
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
March 14, 1979
Creator:
Gilmore, Robert K. & Hart, Sandra
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Altus Times-Democrat (Altus, Okla.), Vol. 55, No. 109, Ed. 1 Monday, May 14, 1979
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
May 14, 1979
Creator:
Gilmore, Robert K. & Hart, Sandra
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Altus Times-Democrat (Altus, Okla.), Vol. 55, No. 136, Ed. 1 Thursday, June 14, 1979
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
June 14, 1979
Creator:
Gilmore, Robert K. & Hart, Sandra
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Altus Times-Democrat (Altus, Okla.), Vol. 55, No. 188, Ed. 1 Tuesday, August 14, 1979
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
August 14, 1979
Creator:
Gilmore, Robert K. & Hart, Sandra
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Altus Times-Democrat (Altus, Okla.), Vol. 55, No. 215, Ed. 1 Friday, September 14, 1979
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 14, 1979
Creator:
Gilmore, Robert K. & Hart, Sandra
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Altus Times-Democrat (Altus, Okla.), Vol. 55, No. 240, Ed. 1 Sunday, October 14, 1979
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
October 14, 1979
Creator:
Gilmore, Robert K. & Hart, Sandra
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Altus Times-Democrat (Altus, Okla.), Vol. 55, No. 267, Ed. 1 Wednesday, November 14, 1979
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
November 14, 1979
Creator:
Gilmore, Robert K.; Hale, Dave & Hart, Sandra
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Altus Times-Democrat (Altus, Okla.), Vol. 55, No. 293, Ed. 1 Friday, December 14, 1979
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 14, 1979
Creator:
Gilmore, Robert K.; Hale, Dave & Hart, Sandra
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Alvin Sun (Alvin, Tex.), Vol. 89, No. 177, Ed. 1 Thursday, June 14, 1979
Daily newspaper from Alvin, Texas that includes local, state, and national news along with advertising.
Date:
June 14, 1979
Creator:
Looney, Richard
Object Type:
Newspaper
System:
The Portal to Texas History
The Alvin Sun (Alvin, Tex.), Vol. 89, No. 220, Ed. 1 Tuesday, August 14, 1979
Daily newspaper from Alvin, Texas that includes local, state, and national news along with advertising.
Date:
August 14, 1979
Creator:
Looney, Richard
Object Type:
Newspaper
System:
The Portal to Texas History
Amorphous silicon thin films heterojunction solar cells. Second quarterly progress report, January 31-March 31, 1979
A full description is given of a glow discharge deposition system, as well as a schematic. A growth rate of 2 to 3 A/sec is reported across a total substrate diameter of 76 mm, and films of a-Si:H free of oxygen and carbon contaminants have been obtained. Other films deposited include: doped and undoped a-Si:H and a-Si/sub x/C/sub 1-x/:H, n-i-p, a-Si:H plus n-i-p, a-Si:H plus a-Si/xub x/C/sub 1-x/. Optical transmission measurements from .35 to 50 microns wavelength were made on these films. A significant difference found in the vibrational spectra is the shift of the major stretching mode from 2000 cm/sup -1/ for a-Si:H to 2100 cm/sup -1/ for the a-SiC:H. A strong broad band centered at 1000 cm/sup -1/ appears when carbon is present. (LEW)
Date:
May 14, 1979
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
The Archer County News (Archer City, Tex.), Vol. 62nd YEAR, No. 23, Ed. 1 Thursday, June 14, 1979
Weekly newspaper from Archer City, Texas that includes local, state and national news along with advertising.
Date:
June 14, 1979
Creator:
Lobpries, F. Mike
Object Type:
Newspaper
System:
The Portal to Texas History
The Bandera Bulletin (Bandera, Tex.), Vol. 34, No. 49, Ed. 1 Thursday, June 14, 1979
Weekly newspaper from Bandera, Texas that includes local, state, and national news along with advertising.
Date:
June 14, 1979
Creator:
Saul, Myra
Object Type:
Newspaper
System:
The Portal to Texas History
[Bass Drum Player at Gay Rights March]
A photograph of a bass drum player wearing a black cowboy hat standing with several other people at the March on Washington D.C. for Lesbian and Gay Rights.
Date:
October 14, 1979
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library