Weekly progress report -- Technical Section for period ending June 12, 1943 Page: 10 of 17
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a
-9-
L. Squires (Cont'd.)
neutralizers) with a somewhat reduced allowance for spare equipment.
Details are covered in a memorandum to file:
Preliminary experiments were made on the solution rate of the
Al-Si brazing alloy currently being used as a hot-dipped coating
on the metal slugs. It was found that this composition dis-
solved very slowly and incompletely in both dilute and concentrated
HNOs and concentrated caustic solution. This behavior will
seriously interfere with the metal dissolving step of the extraction
process as now operated if hot-dipped coatings are used. Further
work is under way.
Work in progress at the present time includes the following:
1. A process description and equipment requirements for the
phosphate process are being prepared in report form.
These will summarize the process chemistry, operating
variables, equipment performance, as well as pertinent
physical and corrosion data.
2. The corrosion data for critical points in the phosphate
process are being checked under conditions specified in:
the recent flowsheet. The evaluation of the effect of
various annealing conditions on the corrosion resistance
of 25-12 welds is also under way.
3. Preparation of a waste disposal flowsheet based on the
current experimental program.
4. The current experimental program at Chicago will be
followed. In particular, a practical bulk reduction step
to follow the decontamination step must be worked out
promptly, so that the design of the so-called recovery
building can proceed.
M. F. Acken
The first part of the week was spent at Chicago where conditions
governing the operation of the bismuth phosphate process were
reviewed at a conference attended by members of Sutton's, Smith's,
and Seaborg's groups. Assistance was given in the preparation
and checking of process flowsheets.
J. A. Collins
DISCLAIMER
Vacation period.
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and opinions of authors expressed herein do not necessarily state or reflect those of the
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Weekly progress report -- Technical Section for period ending June 12, 1943, report, June 15, 1943; United States. (https://digital.library.unt.edu/ark:/67531/metadc1354792/m1/10/?rotate=270: accessed July 16, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.