NEW BETA HEAT-TREATING SALT BATHS FOR REDUCING HYDROGEN PICKUP BY URANIUM RODS

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BS> Hydrogen pickup by U was studied in different salt mixtures at 1350 deg F under dry and wet atmospheres. Of the salts investigdted, 50 wt.% KCl-50 wt.% NaCl and 50 wt.% KCl-50 wt.% Na/sub 2/CO/sub 3/ gave the best results for low H pickup, corrosion of U, and salt stability at 1350 deg F. These salt mixtures resulted in H pickup of less than 3 ppm under dry atmospheres and less than 5 ppm under wet atmospheres. By comparison, the two salt mixtures, 44 wt.% Li/sub 2/CO/sub 3/-56 wt.% K/sub 2/CO/sub 3/ and 25 wt.% Li/sub 2/CO/sub 3/--75 wt.% ... continued below

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Pages: 28

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Lortscher, L.L.; Sense, K.A. & Filbert, R.B. Jr. June 18, 1957.

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BS> Hydrogen pickup by U was studied in different salt mixtures at 1350 deg F under dry and wet atmospheres. Of the salts investigdted, 50 wt.% KCl-50 wt.% NaCl and 50 wt.% KCl-50 wt.% Na/sub 2/CO/sub 3/ gave the best results for low H pickup, corrosion of U, and salt stability at 1350 deg F. These salt mixtures resulted in H pickup of less than 3 ppm under dry atmospheres and less than 5 ppm under wet atmospheres. By comparison, the two salt mixtures, 44 wt.% Li/sub 2/CO/sub 3/-56 wt.% K/sub 2/CO/sub 3/ and 25 wt.% Li/sub 2/CO/sub 3/--75 wt.% K/sub 2/CO/sub 3/, resulted in H pickup greater than 5 ppm under dry atmospheres and as high as 13 ppm under wet atmospheres. Pilot-plantscale studies showed that the average final H content of the U specimens treated in the 50 wt.% KCl-50 wt.% NaCl baths was 0.47 ppm. The corresponding average for the 50 wt.% KCl-50 wt.% Na/sub 2/CO/sub 3/ baths was 0.77 ppm. Preliminary studies of corrosion of materials of construction in the pilot-plant-scale baths indicated that Type 330 stainless steel was more resistant to attack than mild steel and Types 304, 416, and 446 stainless steels. (auth)

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Pages: 28

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  • Other Information: Decl. Feb. 4, 1960. Orig. Receipt Date: 31-DEC-60

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  • Report No.: BMI-1195
  • Grant Number: W-7405-ENG-92
  • DOI: 10.2172/4152188 | External Link
  • Office of Scientific & Technical Information Report Number: 4152188
  • Archival Resource Key: ark:/67531/metadc870910

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  • June 18, 1957

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  • Sept. 16, 2016, 12:32 a.m.

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  • Dec. 6, 2016, 2:02 p.m.

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Lortscher, L.L.; Sense, K.A. & Filbert, R.B. Jr. NEW BETA HEAT-TREATING SALT BATHS FOR REDUCING HYDROGEN PICKUP BY URANIUM RODS, report, June 18, 1957; Columbus, Ohio. (digital.library.unt.edu/ark:/67531/metadc870910/: accessed November 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.