IDAHO CHEMICAL PROCESSING PLANT TECHNICAL PROGRESS REPORT FOR OCTOBER THROUGH DECEMBER 1958

Technical Report · Tue May 19 04:00:00 EDT 1959

OSTI ID:4232732

Stevenson, C E

In studies of process criticality problems, it was estimated that reactivity might be added at a rate of perhaps one percent DELTA K-second by jetting a uranium235 solution into a large vessel. Aging a rutheniumbearing feed improved its decontaminability by Hexone. Studies of dibutyl phosphate compounds indicated that uranium and aluminum compounds were similar in solubility relationships, and differed in that respect from a zirconium compound. Small concentrations of DBP markedly increased the extraction of zirconium, particularly under acid-deficient conditions. Lead appears to be a potentially useful construction material for dissolving zirconium in nitric-hydrofluoric acid mixtures, provided sulfate is also present. Stainless steels, Hastelloy Fs and Incoloy 804 are corroded seriously by nitric-hydrofluoric mixtures. A ceramic alumina may be useful. The effect of acid on zirconium fluoride precipitation ts similar in nitrate and chloride systems. TBP in dodecane extracts hydrogen fluoride moderately well from aqueous solutions, Trioctyl phosphine oxide extracted over 90 percent of the zirconium from a nitrate solutton at a fluoride ratio of 2: 1 in multiple treatments. Successful tests were made of carned rotor pumps with oversize and with flameplated alumina bearings. Exploratory testing of a bubble flowmeter was made. A special silica gel tested for adsorbing ruthenium from nitrate decomposition gases shows little or no decrepitation. Operation of the NaK heating system for the pilot plant calciner is summarized, and a solids sampling system has been developed for this equipment. A gravity system to recirculate venturi scrub solution was tested. Formaldehyde has been used to remove nitric acid from chrome-nickel-iron solutions and to convert aluminum nitrate solution to a strongly basic form. An analytical technique was developed to determine very small amounts of phosphate in kerosene. (For preceding period see IDO-14457.) (auth)

• Research Organization: Phillips Petroleum Co. Atomic Energy Div., Idaho Falls, Idaho
• DOE Contract Number: AT(10-1)-205
• NSA Number: NSA-13-017953
• OSTI ID: 4232732
• Report Number(s): IDO-14467
• Country of Publication: United States
• Language: English

Related Subjects

ACIDS
ALDEHYDES
ALKANES
ALUMINUM COMPOUNDS
ALUMINUM NITRATES
ALUMINUM OXIDES
BUBBLES
BUTYL PHOSPHATES
CERAMICS
CHEMICAL REACTIONS
CHEMISTRY
CHLORIDES
CHROMIUM
CORROSION
CRITICALITY
DECOMPOSITION
DECONTAMINATION
DODECANE
FORMALDEHYDE
FORMIC ACID
HEATING
HEXANE
HYDROCARBONS
HYDROFLUORIC ACID
IRON
KETONES
MACHINE PARTS
NICKEL
NITRATES
NITRIC ACID
PHOSPHINES
POTASSIUM COMPOUNDS
PRECIPITATION
PUMPS
QUANTITY RATIO
REACTION KINETICS
REACTIVITY
REPORT
RUTHENIUM
SAMPLING
SEPARATION PROCESSES
SODIUM COMPOUNDS
SOLIDS
SOLUBILITY
SOLUTIONS
SOLVENT EXTRACTION
STAINLESS STEELS
SULFATES
TESTING
TRIOCTYLPHOSPHINE OXIDE
U