FIELD: radio-chemistry; production of Technetium - 99т for medicine.
SUBSTANCE: the invention is pertinent to the field of radio-chemistry, in particular, to devices used for production of Technetium - 99т for medicine. Extractor with a self-adjustable level of phases separation contains two columns of about the equal cross-sections, coaxially located one in another. The internal column is made with the narrowed middle part - a throat, at the upper level of which there is an intake pipe and in the lower part of the internal column has holes to communicate with the volume of the outside column. Both columns in their upper parts have branch-pipes for connection to the air - vacuum system. At that the ratio of the height of the throat to the height of the lower part of the internal column does not exceed 0.2, and the ratio of an area of the throat cross-section to the total area of the extractor - 0.3. The invention allows to increase efficiency of the extractor operation at the expense of an increase of a ratio of volumes of the extragent and an water phase up to Ve/Vb ≥ 1 without decrease of the level of losses of extragent.
EFFECT: increased efficiency of the extractor operation without decrease of the level of losses of extragent.
2 ex, dwg, 1 tbl
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Authors
Dates
2004-08-27—Published
2003-08-04—Filed