compound for trapping metals in the form of fluorides and/or oxyfluorides in a gaseous or a liquid phase
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United States of America Patent
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Oct 14, 2014
Issued Date -
N/A
app pub date -
Jun 8, 2012
filing date -
Jun 9, 2011
priority date (Note) -
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Abstract
The invention relates to the use of a compound of the formula KmgF3 to trap metals in the form of fluorides and/or of oxyfluorides in a gaseous or liquid phase. It also relates to a compound of the formula KMgF3 which has a surface area at least equal to 30 m2/g and at most equal to 150 m2/g and also to its methods of preparation. The invention notably finds application in the nuclear industry, in which it can advantageously be used to purify uranium hexafluoride (UF6) present in a gaseous or liquid stream, with regard to metal impurities which are also present in this stream.
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International Classification(s)
- C22B:PRODUCTION OR REFINING OF METALS
- C01B:NON-METALLIC ELEMENTS; COMPOUNDS THEREOF
- B01J:CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, CO....
- C01G:COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLAS....
- C01F:COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUM....
- C02F:TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE....
- B01D:SEPARATION
- C01D:COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, ....
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