Title:
METHOD AND DEVICE FOR SEPARATING ARGON FROM A GASEOUS MIXTURE
Document Type and Number:
WIPO Patent Application WO/2011/045186
Kind Code:
A4
Abstract:
The present invention relates to a method for separating argon from a gaseous mixture, a device therefor, and the use thereof for recovering argon from a furnace for producing monocrystalline and/or polycrystalline silicon by way of fusing silicon granules. The method according to the invention for separating argon from a gaseous mixture contains the method steps of collecting the gaseous mixture, roughly removing oil from the gaseous mixture, compressing the gaseous mixture, cooling the gaseous mixture, finely removing oil from the gaseous mixture, separating the oxygen contained in the gaseous mixture, drying the gaseous mixture, and cryogenically purifying the remaining gaseous mixture for separating the argon in liquid form.
Inventors:
WANNER MICHAEL (DE)
NICKEL HERBERT (DE)
NICKEL HERBERT (DE)
Application Number:
PCT/EP2010/064540
Publication Date:
August 11, 2011
Filing Date:
September 30, 2010
Export Citation:
Assignee:
REICAT GMBH (DE)
WANNER MICHAEL (DE)
NICKEL HERBERT (DE)
WANNER MICHAEL (DE)
NICKEL HERBERT (DE)
International Classes:
C23C16/44; C01B23/00; C30B11/00; C30B13/00; C30B15/00; C30B35/00; F25J3/02; F25J3/08
Attorney, Agent or Firm:
MEYER-DULHEUER, Karl-Hermann (Frankfurt, DE)
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