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Chemical Processing Technology Quarterly Progress Report
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Book Synopsis CHEMICAL PROCESSING TECHNOLOGY. Quarterly Progress Report, April-June 1964 by :
Download or read book CHEMICAL PROCESSING TECHNOLOGY. Quarterly Progress Report, April-June 1964 written by and published by . This book was released on 1965 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Chemical Processing Technology Quarterly Progress Report by : U.S. Atomic Energy Commission. Idaho Operations Office
Download or read book Chemical Processing Technology Quarterly Progress Report written by U.S. Atomic Energy Commission. Idaho Operations Office and published by . This book was released on 1963 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis CHEMICAL PROCESSING TECHNOLOGY QUARTERLY PROGRESS REPORT, JANUARY-MARCH 1964 by :
Download or read book CHEMICAL PROCESSING TECHNOLOGY QUARTERLY PROGRESS REPORT, JANUARY-MARCH 1964 written by and published by . This book was released on 1964 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Chemical Processing Technology Quarterly Progress Report by :
Download or read book Chemical Processing Technology Quarterly Progress Report written by and published by . This book was released on 1963 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Chemical Processing Technology Quarterly Progress Report by : J. R. Huffman
Download or read book Chemical Processing Technology Quarterly Progress Report written by J. R. Huffman and published by . This book was released on 1960 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Chemical Processing Technology Quarterly Progress Report by : U.S. Atomic Energy Commission. Idaho Operations Office
Download or read book Chemical Processing Technology Quarterly Progress Report written by U.S. Atomic Energy Commission. Idaho Operations Office and published by . This book was released on 1961 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Chemical Processing Technology Quarterly Progress Report by : U.S. Atomic Energy Commission. Idaho Operations Office
Download or read book Chemical Processing Technology Quarterly Progress Report written by U.S. Atomic Energy Commission. Idaho Operations Office and published by . This book was released on 1961 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Chemical Processing Technology Quarterly Progress Report by : J. R. Bower
Download or read book Chemical Processing Technology Quarterly Progress Report written by J. R. Bower and published by . This book was released on 1962 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Chemical Processing Technology Quarterly Progress Report by :
Download or read book Chemical Processing Technology Quarterly Progress Report written by and published by . This book was released on 1963-04 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis CHEMICAL PROCESSING TECHNOLOGY QUARTERLY PROGRESS REPORT, JANUARY-MARCH 1963 by :
Download or read book CHEMICAL PROCESSING TECHNOLOGY QUARTERLY PROGRESS REPORT, JANUARY-MARCH 1963 written by and published by . This book was released on 1963 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Chemical Processing Technology Quarterly Progress Report, January-March 1962 by :
Download or read book Chemical Processing Technology Quarterly Progress Report, January-March 1962 written by and published by . This book was released on 1962 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The processing of Al fuel, principally of the MTR-ETR type, is reported. Processing rate averaged 90% of flow sheet values for the entire operating period, and a U recovery of 99.85% was achieved. Aqueous Zr fuel processing studles continued with the objective of adapting the HF process to continuous dissolution-complexing in order to increase the capacity of the ICPP process while using as much existing equipment as possible to minimize costs. Good results were indicated in a 190-hr run dissolving 2% U-Zr fuel in a Monel dissolver using 4.8M HF-0.03M HNO/sub 3/ dissolvent at 200 deg F; insoluble material did not accumulate in the dissolver, although a U-containing film was formed, apparently in small, equilibrium quantity. Shorter term continuous laboratory dissolutions indicated that 4.8M acid was preferable to 10M acid for the acid feed rate/fuel surface ratios proposed, resulting in dissolver products of greater stability and higher uranium content. Additional laboratory data are presented on UF/sub 4/ hydrate form and solubility, together with maximum dissolvable U compositions with Zircaloy under various flowsheet condltions. Processing of Al alloys containing high Si was found to present no unusual problems in laboratory studies. Siliceous residues resulting from dissolution of Al-U alloys containing 2% Si in HNO/sub 3/ contained no insoluble U, and the occluded U was readily removed by solvent extraction with TBP-Amsco, the normal process extractant. Studies of the electrolytic dissolution process were directed at corrosion measurement and prevention, development of analytical systems for process control, and testing of structural insulating materials for use in the process environment. A measurement of corrosion potential is shown to indicate the instantaneous corrosion rate of stainless steel process equipment containing electrolytic dissolver solutions; this measurement could determine the amount of cathodic protection that might be used to protect certain corrosion sensitive areas. An in-line process solution analyzer was developed and a prototype constructed and placed in use; by simultaneous measurement of electric conductance of two flowing stream samples (one, the original concentration, and the other, a fixed dilution), the concentrations of both dissolver acid and dissolved stainless steel components are determined. The Demonstrational Waste Calcination Facility was operated continuously for 250 hr, showing good mechanical operability of process equipment and close control of process conditions. Escape of solids past the calciner cyclone into the liquid scrubbing system continued to be the principal area of concern. Pilot plant calciner studies indicated the rate of solids carry-over from the cyclone was nearly constant, whether the bed was predominantly alpha or amorphous alumina, however, solids elutriation rate from the bed varied with alumina crystal form. In laboratory studies directed toward calcination of wastes from stainless steel processing, the nitrates of Fe, Ni, and Cr were found to decompose thermally at temperatures approximately the same as those used for aluminum nitrate calcination. Miscellaneous basic process studies reported include experimental verification of analog results on air pulsed extraction column operating characteristics, indication of a method of sampling individual aqueous or organic phases in an operating column, and further evidence of the effectiveness of the cascade control system on the thermosiphon product evaporator. Progress is reported on design of neutron poison plate structures for protection of vessels of unsafe geometrical configuration from criticality incidents in the presence of high concentrations of enriched U. (auth).
Download or read book TID. written by and published by . This book was released on 19?? with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Chemical Processing Technology Quarterly Progress Report, January-March 1961 by :
Download or read book Chemical Processing Technology Quarterly Progress Report, January-March 1961 written by and published by . This book was released on 1962 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Studies are reported on aqueous zirconium processing, dissolution of BeO- UO/sub 2/ ceramic fuel, the aqueous stainless steel process, the behavior of dibutyl phosphates, use of boron (boric acid) solution to assure critical safety, fluidized bed calcination, conversion of amorphous alumina to alpha alumina, the Demonstrational Waste Calcining Facility, removal of long-lived radioisotopes from waste solutions, separation of iron, nickel, and chromiun from stainless steel waste solutions, electrolytic dissolution, effects of stray currents, electrolytic disintegration of Zircaloy-2, corrosion evaluation of materials of construction, the ARCO process, a direct air pulsed extraction column, and large vessel criticality control. (M.C.G.).
Book Synopsis Zirconium Processing Capability of the Idaho Chemical Processing Plant by : J. R. Bower
Download or read book Zirconium Processing Capability of the Idaho Chemical Processing Plant written by J. R. Bower and published by . This book was released on 1964 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Chemical Processing Technology Quarterly Progress Report, July-September 1961 by :
Download or read book Chemical Processing Technology Quarterly Progress Report, July-September 1961 written by and published by . This book was released on 1961 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Idaho Chemical Processing Plant did not operate on fuel recovery during the period since numerous repairs and modifications were being made to the extraction and U concentration equipment, Ba/sup 140/ production continued on schedule; substantial decontamination of the RaLa facility was achieved and desirable replacement or repair of in-cell equipment was accomplished in the interval between two successive runs. Aqueous Zr fuel processing studies continued with the obje tive of adapting the HF process to continuous dissolution a complexing in order to increase the capacity of the ICPP process while using as much existing equipment as possible to minimize costs. Dissolution rates for Zircaloy-2 in 10M(bar) fluoride dissolver solution proved to be adequate for continuous dissolution (as high as 79 mg cm/sup -2/ min/sup -1/) in an acid range which resulted in both controlled gas evolution and stable dissolver solutions. Preliminary results indicate the possibility of blending Zr raffinates from this process with larger volumes of Al raffinates to achieve stable waste solutions and avoid the necessity of constructing additional special alloy tanks for Zr waste. Supplemental studies on the sodium formate process for head end precipitation of Zr snd fluoride are reported, as well as results of corrosion tests on materials of construction considered for use in various zirconium processing applications. Other aqueous processing studies included the determination that 2.2M aluminum nitrate solutions, acid deficient to 1.0N/sup b/, could be used to scrub highly acid U extraction solutions without incurring the hazard of ammonium diuranate precipitation. Preliminary to processing organic moderated reactor fuel elements, it was discovered that carbonaceous films present on some elements were resistant to removal by Turco 4502 solution, and responded only to oxidation at 500 deg C; the possibility of processing without film removal was explored with satisfactory results insofar as dissolution of the fuel is concerned. Electrolytic dissolution of nichrome-containing fuels in HNO/sub 3/ appears promising and conditions predicted from earlier studies on stainless-steel dissolution were confirmed. Stability, density, and viscosity data are presented for representative product solutions from electrolytic dissolution of stainless-steel fuel of the APPR type. Results of additional chemical and radiation exposure tests on possible plastic insulator materials are presented. Factors affecting the formation of alpha alumina from amorphous alumina received additional study in the laboratory because of the severe attrition problem and related operational difficulties associated with the alpha form in the fluidized-bed calcination process. It was demonstrated that very little alpha alumina was formed by heating amorphous pilot plant product in air, moderate amounts were formed by heating in an airwater vapor atmosphere, and larger amounts were formed when the atmosphere also contained HNO/sub 3/ vapors. Temperature and method of alumina formation (i.e., conditions of pilot plant calciner operation) also affected the conversion but appeared to be interrelated so that no clear cut conclusion on individual effects could be drawn. Investigations of intermediates in the reaction, and structure and distribution of crystalline material in individual particles of calcine, are discussed. Pilot plant calcination studies showed a direct effect between feed Na content and alpha alumina formation rate. Hg was found to have no detectable effect on the process or product. Stripping of TBP from aqueous U streams was investigated because of difficulty associated with decomposition products of TBP, which form gummy deposits and interfere with the operation of product evaporators and pumps. Using tracer P, the TBP distribution coefficient between Amsco and water containing flowsheet quantities of HNO/sub 3/ and U was found to be sufficiently high (290 plus or minus ...
Book Synopsis ICPP Waste Calcining Facility by : L. T. Lakey
Download or read book ICPP Waste Calcining Facility written by L. T. Lakey and published by . This book was released on 1963 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Radioactive Waste Processing and Disposal by : Theodore F. Davis
Download or read book Radioactive Waste Processing and Disposal written by Theodore F. Davis and published by . This book was released on 1962 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: