Patent ID: 8088258
Filing Date: 2012-01-03
Classification: C01B,F25J,Y10S

Abstract:
1. A method for purifying and separation a krypton-xenon mixture, comprising the steps of: a) providing a preliminary rectification column for preliminary separation of the mixture into krypton and xenon fractions, a column of production krypton, and a column of production xenon, each said column including an evaporator-condenser and a still, each said still including an additional evaporator; b) clearing the mixture from radionuclides in an additional apparatus for clearing the mixture from radionuclides; c) supplying the mixture into the preliminary rectification column; d) purifying said krypton and xenon fractions by rectification to remove volatile and high-boiling components with the formation of a phlegm in said evaporators-condensers of the column of production krypton and the column of production xenon respectively, due to the boiling of liquid coolant coming from a storage and from a cooling cycle; e) clearing the flows of said krypton and xenon fractions from radionuclides correspondingly at an additional apparatus for clearing the krypton fraction from radionuclides and at an additional apparatus for clearing the xenon fraction from radionuclides with the control over content and/or activity of radionuclides therein; f) removing the xenon fraction from the still of said preliminary separation column; g) clearing the flows of production krypton and xenon from radionuclides correspondingly in an additional apparatus for finish clearing of the production krypton and in an additional apparatus for finish clearing of the production xenon; h) passing the production flows of krypton and xenon onto filling ramps; i) pumping the production flows of krypton and xenon into balloons; j) additionally testing the flows on the radionuclides content and/or activity; k) retrieving compressed coolant from the cooling cycle; l) cooling off the compressed coolant in the additional evaporators of said stills of said preliminary rectification column, said column of production krypton, and said column of production xenon; and m) returning the coolant into the cooling cycle.