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4. Analytical results
Table 1 presents all the extraction methods described in this article, summarizing their main characteristics, i.e. extraction temperatures and their precisions, extraction time and yield, qualitative and quantitative aspects of residual noble gas outgassing (analytical blank), etc., to guide the engineer in his analytical choice. Degassing values, expressed in moles, represent an average obtained from the analytical results of 12 internationally renowned laboratories [Doc. J 6 632]. Sometimes, two distinct values (low limit, high limit) are indicated when the analytical blanks announced in the literature were too disparate from one another. Values for furnaces (HT, BT, lamp and induction) are given for the maximum extraction...
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Unit operations. Chemical reaction engineering
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Analytical results
Conclusion
Bibliography
Events
Development In Noble Gas Understanding and Expertise (DINGUE). Workshop organized each year in conjunction with the GOLDSCHIMDT conference.
Standards and norms
- CF flange connection elements: the elements are made of 316 L stainless steel [DIN 17 440 – WN 14 404) Z2CND17-12] and DIN 28 403 - « Pneurop » 6601 - 1981
- Cuivre OFHC (Oxygen Free High Conductivity ): Cuivre élaboré suivant une méthode américaine. Son équivalent français est le cuivre Cu-c1 ou 2 - ISO431 -
Patents
ZIMMERMANN (L.), PIK (R.). – High-temperature furnace under ultra-high vacuum. [patent FR 2973105(A1)] (2011).
ZIMMERMANN (L.). – Furnace and process for extraction by diffusion of helium present in minerals. [patent no. 1 000185860] (2013).
Directory
Manufacturers – Producers – Suppliers (non-exhaustive list)
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Ultra-high vacuum equipment (CF flange, translation and electrical bushing, copper gasket, etc.)
Adixen Vacuum Products SAS (Pfeiffer) http://www.pfeiffer-vacuum.com
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