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Kazanjian, A.R.
Atomics International Div., Golden, Colo. (USA). Rocky Flats Plant1978
Atomics International Div., Golden, Colo. (USA). Rocky Flats Plant1978
AbstractAbstract
[en] An investigation was made of the effects of high-energy radiation and strong acids on the thermal stability of ion exchange resins. Dowex 1-X4 (anion exchange resin) and Dowex 50-X8 (cation exchange resin) were subjected to gamma and alpha radiation in addition to nitric and hydrochloric acids. The resins then were analyzed by differential thermal analysis and infrared analysis to examine the changes in thermal stability. Gamma irradiation (up to 1.6 x 109 rads) did not affect the thermal stability of Dowex 50-X8 in hydrochloric or nitric acid. Gamma irradiation (about 108 rads) of Dowex 1-X4 in nitric acid lowers the exotherm temperature approximately 50 degrees Celsius. The effect of alpha radiation on Dowex 1-X4 is about the same as that of gamma radiation, whereas alpha particles are more damaging than gamma rays to Dowex 50-X8. Contacting the unirradiated resins with hydrochloric or nitric acid did not cause degradation, but both resins reacted with nitric acid at elevated temperatures, which created a thermal instability
Original Title
Gamma and alpha radiation
Source
14 Apr 1978; 13 p; Available from NTIS., PC A02/MF A01
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Report
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Kazanjian, A.R.
Atomics International Div., Golden, Colo. (USA). Rocky Flats Plant1976
Atomics International Div., Golden, Colo. (USA). Rocky Flats Plant1976
AbstractAbstract
[en] An investigation was made on a hydrogen getter material (DPPE) to determine its radiation stability. Such material has potential for nuclear industry applications. The material is composed of 75 percent of an unsaturated organic compound (1,6-diphenoxy-2,4-hexadiyne) and 25 percent catalyst (5 percent palladium on calcium carbonate). The radiation stability of this material and of the hydrogenated product was determined by exposing them to gamma radiation in air and vacuum and analyzing for radiolysis products and hydrogen capacity. The major products formed were phenol and carbon dioxide. Numerous solid compounds were also formed in much smaller yields. Product yields were much larger in air than in vacuum. Hydrogen uptake curves showed that the hydrogen capacity decreased appreciably after an absorbed dose of about 108 rads, and that irradiation is more detrimental in air than in vacuum. [For SI (metric) use: rads have been replaced by grays (Gy) and 1 gray = 1 joule per kilogram, and 108 rads = 1 megajoule per kilogram.]
Original Title
Dimerized phenyl propargyl ether containing Pd on CaCO3 catalyst
Primary Subject
Secondary Subject
Source
18 Oct 1976; 8 p; Available from NTIS. $4.00.
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Report
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ALKALINE EARTH METAL COMPOUNDS, CALCIUM COMPOUNDS, CARBON COMPOUNDS, CARBONATES, CHEMICAL REACTIONS, DECOMPOSITION, ELECTROMAGNETIC RADIATION, ELEMENTS, IONIZING RADIATIONS, METALS, NONMETALS, ORGANIC COMPOUNDS, ORGANIC OXYGEN COMPOUNDS, OXYGEN COMPOUNDS, PLATINUM METALS, RADIATION EFFECTS, RADIATIONS, TRANSITION ELEMENTS
Reference NumberReference Number
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Kazanjian, A.R.; Horrell, D.R.
Dow Chemical Co., Denver, Colo. (USA). Rocky Flats Div1972
Dow Chemical Co., Denver, Colo. (USA). Rocky Flats Div1972
AbstractAbstract
No abstract available
Source
1 Sep 1972; 6 p
Record Type
Report
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Kazanjian, A.R.; Horrell, D.R.
Dow Chemical U.S.A., Golden, Colo. Rocky Flats Div1974
Dow Chemical U.S.A., Golden, Colo. Rocky Flats Div1974
AbstractAbstract
No abstract available
Source
10 May 1974; 8 p
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Report
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Kazanjian, A.R.
Atomics International Div., Golden, Colo. (USA)1976
Atomics International Div., Golden, Colo. (USA)1976
AbstractAbstract
[en] Many plutonium contaminated waste materials decompose into gaseous products because of exposure to alpha radiation. The gases generated (usually hydrogen) over long-storage periods may create hazardous conditions. To determine the extent of such hazards, knowing the gas generation yields is necessary. These yields were measured by contacting some common Rocky Flats Plant waste materials with plutonium and monitoring the enclosed atmospheres for extensive periods of time. The materials were Plexiglas, polyvinyl chloride, glove-box gloves, machining oil, carbon tetrachloride, chlorothene VG solvent, Kimwipes (dry and wet), polyethylene, Dowex-1 resin, and surgeon's gloves. Both 239Pu oxide and 238Pu oxide were used as radiation sources. The gas analyses were made by mass spectrometry and the results obtained were the total gas generation, the hydrogen generation, the oxygen consumption rate, and the gas composition over the entire storage period. Hydrogen was the major gas produced in most of the materials. The total gas yields varied from 0.71 to 16 cm3 (standard temperature pressure) per day per curie of plutonium. The oxygen consumption rates varied from 0.0088 to 0.070 millimoles per day per gram of plutonium oxide-239 and from 0.0014 to 0.0051 millimoles per day per milligram 238Pu
Primary Subject
Secondary Subject
Source
29 Oct 1976; 26 p; Available from NTIS. $4.00.
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Report
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ACTINIDE COMPOUNDS, ACTINIDE NUCLEI, ALPHA DECAY RADIOISOTOPES, AUTOLYSIS, CHALCOGENIDES, CHEMICAL RADIATION EFFECTS, CHEMICAL REACTIONS, CLOTHING, DECOMPOSITION, ELEMENTS, ESTERS, EVEN-EVEN NUCLEI, EVEN-ODD NUCLEI, HEAVY NUCLEI, HYDROCARBONS, ION EXCHANGE MATERIALS, ION SOURCES, ISOTOPES, NONAQUEOUS SOLVENTS, NONMETALS, NUCLEI, ORGANIC CHLORINE COMPOUNDS, ORGANIC COMPOUNDS, ORGANIC HALOGEN COMPOUNDS, ORGANIC POLYMERS, OTHER ORGANIC COMPOUNDS, OXIDES, OXYGEN COMPOUNDS, PARTICLE SOURCES, PLUTONIUM COMPOUNDS, PLUTONIUM ISOTOPES, POLYACRYLATES, POLYMERS, POLYOLEFINS, POLYVINYLS, PROTECTIVE CLOTHING, RADIATION EFFECTS, RADIATION SOURCES, RADIOACTIVE MATERIALS, RADIOISOTOPES, SOLVENTS, SPECTROSCOPY, TRANSURANIUM COMPOUNDS, WASTES, YEARS LIVING RADIOISOTOPES
Reference NumberReference Number
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Kazanjian, A.R.; Stevens, J.R.
Rockwell International Corp., Golden, CO (USA). Rocky Flats Plant1984
Rockwell International Corp., Golden, CO (USA). Rocky Flats Plant1984
AbstractAbstract
[en] The dissolution of plutonium dioxide in nitirc acid (HNO3) at high hydrofluoric acid (HF) concentrations has been investigated. Dissolution rate curves were obtained using 12M HNO3 and HF at concentrations varying from 0.05 to 1.0 molar. The dissolution rate increased with HF concentration up to 0.2M and then decreased at higher concentrations. There was very little plutonium dissolved at 0.7 and 1.0M HF because of the formation of insoluble PuF4. Various oxidizing agents were added to 12M HNO3-1M HF dissolvent to oxidize Pu(IV) to Pu(VI) and prevent the formation of PuF4. Ceric [Ce(IV)] and silver [Ag(II)] ions were the most effective in dissolving PuO2. Although these two oxidants greatly increased the dissolution rate, the rates were not as rapid as those obtained with 12M HNO3-0.2M HF
Primary Subject
Source
15 Jun 1984; 10 p; Available from NTIS, PC A02/MF A01; 1 as DE84015142
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Report
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Kazanjian, A.R.; Killion, M.E.
Rockwell International Corp., Golden, CO (USA). Rocky Flats Plant1982
Rockwell International Corp., Golden, CO (USA). Rocky Flats Plant1982
AbstractAbstract
[en] The radiation stability of Amberlite IRA-938, an anion exchange resin, and Bio-Rad AG MP-50, a cation exchange resin, was investigated. The resins were gamma irradiated and analyzed for exchange capacity, gas generation, thermal stability, and plutonium capacity. The radiation stabilities were comparable to those of Dowex 11 and Dowex 50W-X8, the resins presently used in Rocky Flats recovery operations
Original Title
Gamma radiation
Secondary Subject
Source
15 Jan 1982; 16 p; Available from NTIS., PC A02/MF A01 as DE82007677
Record Type
Report
Literature Type
Numerical Data
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Kazanjian, A.R.; Horrell, D.R.
Dow Chemical Co., Golden, Colo. (USA). Rocky Flats Div1972
Dow Chemical Co., Golden, Colo. (USA). Rocky Flats Div1972
AbstractAbstract
No abstract available
Primary Subject
Source
25 Aug 1972; 9 p
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Report
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Kazanjian, A.R.; Horrell, D.R.
Dow Chemical U.S.A., Golden, Colo. Rocky Flats Div1975
Dow Chemical U.S.A., Golden, Colo. Rocky Flats Div1975
AbstractAbstract
[en] The effects were determined of gamma radiation on the anion exchange resin, Dowex 1. Part I on Dowex 50W was reported May 10, 1974. The exchange capacity (both strong and weak base), moisture content, radiolysis products, and physical deterioration of the resin were analyzed after irradiation with doses up to 6.9 x 108 rads. The resin capacity decreased approximately 50 percent after a radiation dose of 4 x 108 rads. Resin irradiated, when air dried in the nitrate form, showed more stability than resin irradiated in 7N nitric acid (HNO3), which in turn showed more stability than resin irradiated when air dried in the chloride form. Radiation decreased the strong base capacity to a greater extent than the total capacity. The result indicates that some of the quarternary ammonium groups were transformed to secondary and tertiary amine groups that have weak base ion-exchange capability. (U.S.)
Source
27 Feb 1975; 12 p
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Report
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Kazanjian, A.R.; Stevens, J.R.
Rockwell International Corp., Golden, CO (USA). Rocky Flats Plant1983
Rockwell International Corp., Golden, CO (USA). Rocky Flats Plant1983
AbstractAbstract
[en] The radiation effects on three new cation exchange resins were investigated. The resins were Dowex MSC-1, Amberlite 252, and Duolite C-264. The properties examined were ion exchange capacity, moisture content, plutonium loading and elution characteristics, thermal stability, and gas generation. There were some differences in the radiation effects on these properties but the overall radiation stability was considered to be about the same. The resins were relatively radiation stable, indicative of cation resins of this type
Original Title
Gamma rays
Primary Subject
Secondary Subject
Source
12 Sep 1983; 11 p; Available from NTIS, PC A02/MF A01 as DE84000847
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