Published July 12, 1979 | Version v1
Patent Open

Process for the removal of iodine and iodine compounds from gases and vapours and sorption agents impregrated with silver nitrate to carry out the process

Creators

Description

The gases and vapours containing the radioactive fission product iodine - in elementary form or as an organic compound, e.g. CH3I, are led through a loosely packed bed of granulated metal. The granulated metal may be molded into porous plates or cylinders. The granulates consist mainly of amorphous silica gel impregnated with silver nitrate, with a volume porosity of 50 to 70% and a specific surface of 70 to 250 m2/g according to BET. The silica gel may contain fractions of Al2O3 and/or oxides of alkaline earth metals. (DG) 891 HP/DG 892 MBE

Availability note (English)

MF available from INIS under the Report Number.

Abstract (German)

Die das radioaktive Spaltprodukt-Jod elementar oder als organische Verbindung, z.B. CH3J, enthaltenden Gase und Daempfe werden durch eine lose Schuettung von Granalien hindurchgeleitet. Die Granalien koennen zu poroesen Platten oder Zylindern geformt sein. Das Granulat besteht im wesentlichen aus silbernitratimpraegnierter amorpher Kieselsaeure mit einer Volumen-Porositaet von 50 bis 70% und einer spezifischen Oberflaeche von 70 bis 250 m2/g nach BET. Als Restanteile kann die Kieselsaeure Al2O3 und/oder Erdalkalimetalloxide enthalten. (DG)

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Additional details

Additional titles

Original title (German)
Verfahren zur Entfernung von Jod und Jodverbindungen aus Gasen und Daempfen und silbernitratimpraegnierte Sorptionsmittel zur Durchfuehrung des Verfahrens

Publishing Information

Imprint Pagination
6 p.
IPC:
Int. Cl. B01D 53/14; B01D 53/16.
IPC
Int. Cl. B01D 53/14; B01D 53/16.
Patent number
DE patent document 2109146/B/

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
11531808
Subject category
S42: ENGINEERING;
Descriptors DEI
ADSORPTION; IMPREGNATION; IODINE COMPOUNDS; IODINE 129; IODINE 131; NUCLEAR FACILITIES; OFF-GAS SYSTEMS; ORGANIC IODINE COMPOUNDS; SILICIC ACID; SILVER NITRATES
Descriptors DEC
BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; DAYS LIVING RADIOISOTOPES; HALOGEN COMPOUNDS; HYDROGEN COMPOUNDS; INORGANIC ACIDS; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTO; IODINE ISOTOPES; ISOTOPES; NITRATES; NITROGEN COMPOUNDS; NUCLEI; ODD-EVEN NUCLEI; ORGANIC COMPOUNDS; ORGANIC HALOGEN COMPOUNDS; OXYGEN COMPOUNDS; RADIOISOTOPES; SILICON COMPOUNDS; SILVER COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; YEARS LIVING RADIOISOTOPES