Author: L. L. BurgerPublisher:
ISBN:
Category : Chemistry
Languages : en
Pages : 154
Book Description
The Chemistry of Tributyl Phosphate
Author: L. L. BurgerPublisher:
ISBN:
Category : Chemistry
Languages : en
Pages : 154
Book Description
The Chemistry of Tributyl Phosphate at Elevated Temperatures in the Plutonium Finishing Plant Process Vessels
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 60
Book Description
Potentially violent chemical reactions of the tributyl phosphate solvent used by the Plutonium Finishing Plant at the Hanford Site were investigated. There is a small probability that a significant quantity of this solvent could be accidental transferred to heated process vessels and react there with nitric acid or plutonium nitrate also present in the solvent extraction process. The results of laboratory studies of the reactions show that exothermic oxidation of tributyl phosphate by either nitric acid or actinide nitrates is slow at temperatures expected in the heated vessels. Less than four percent of the tributyl phosphate will be oxidized in these vented vessels at temperatures between 125°C and 250°C because the oxidant will be lost from the vessels by vaporization or decomposition before the tributyl phosphate can be extensively oxidized. The net amounts of heat generated by oxidation with concentrated nitric acid and with thorium nitrate (a stand-in for plutonium nitrate) were determined to be about -150 and -220 joules per gram of tributyl phosphate initially present, respectively. This is not enough heat to cause violent reactions in the vessels. Pyrolysis of the tributyl phosphate occurred in these mixtures at temperatures of 110°C to 270°C and produced mainly 1-butene gas, water, and pyrophosphoric acid. Butene gas generation is slow at expected process vessel temperatures, but the rate is faster at higher temperatures. At 252°C the rate of butene gas generated was 0.33 g butene/min/g of tributyl phosphate present. The measured heat absorbed by the pyrolysis reaction was 228 J/g of tributyl phosphate initially present (or 14.5 kcal/mole of tributyl phosphate). Release of flammable butene gas into process areas where it could ignite appears to be the most serious safety consideration for the Plutonium Finishing Plant.
Some Factors Influencing the Use of Tributyl Phosphate for the Extraction of Uranium in Analysis
Author: T. W. BartlettPublisher:
ISBN:
Category : Chemistry
Languages : en
Pages : 28
Book Description
SCIENCE AND TECH TRIBUTYL PHOSP PART A
Author: Leland L. BurgerPublisher: Springer
ISBN:
Category : Science
Languages : en
Pages : 152
Book Description
Sci & Tech Tributyl Phosphate Extraction Water Acids
Author: A. Steven KertesPublisher: CRC-Press
ISBN: 9780849363931
Category : Science
Languages : en
Pages : 381
Book Description
The Esters of the Acids of Phosphorus as Solvents
Author: L. L. BurgerPublisher:
ISBN:
Category : Chemistry
Languages : en
Pages : 54
Book Description
Science and Technology of Tributyl Phosphate: Selected technical and industrial uses
Author: Publisher:
ISBN: 9780849363993
Category : Tributyl phosphate
Languages : en
Pages : 146
Book Description
Solvent Extraction Equilibria for Rare Earth Nitrate-tributyl Phosphate Systems
Author: Lester L. KnappPublisher:
ISBN:
Category : Extraction (Chemistry)
Languages : en
Pages : 46
Book Description
Literature Search
Author: Robert H. EllerhorstPublisher:
ISBN:
Category : Kerosene
Languages : en
Pages : 32
Book Description
Author: