GB445472A - Process and apparatus for obtaining krypton and xenon - Google Patents

Process and apparatus for obtaining krypton and xenon

Info

Publication number
GB445472A
GB445472A GB2888034A GB2888034A GB445472A GB 445472 A GB445472 A GB 445472A GB 2888034 A GB2888034 A GB 2888034A GB 2888034 A GB2888034 A GB 2888034A GB 445472 A GB445472 A GB 445472A
Authority
GB
United Kingdom
Prior art keywords
column
liquid
coil
cock
xenon
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2888034A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to FR779143D priority Critical patent/FR779143A/en
Priority to CH180778D priority patent/CH180778A/en
Application filed by IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to GB2888034A priority patent/GB445472A/en
Publication of GB445472A publication Critical patent/GB445472A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04642—Recovering noble gases from air
    • F25J3/04745—Krypton and/or Xenon

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Separation By Low-Temperature Treatments (AREA)

Abstract

445,472. Obtaining krypton and xenon. GROVES, W. W., 30, Southampton Buildings, Chancery Lane, London.-(I. G. Farbenindustrie Akt.-Ges.; Frankfort-on-Main, Germany) Oct. 9, 1934, No. 28880. [Class 8 (ii)] To obtain krypton and xenon, liquid oxygen from atmospheric air is subjected to several successive rectifications in columns arranged one above another, or side by side. The Figure shows apparatus in which air is rectified in the upper column 1 and oxygen passes down to the column 3 through a cock 2 while oxygen vapour passes back to the upper column through a cock 4. The liquid passes down through cock 5 to column 6, gas rising through the same cock. The liquid finally flows into the interior of a double coil 7 and is withdrawn through a cock 9 ; it consists of a mixture of krypton and xenon contaminated by oxygen and may be treated to obtain pure krypton and xenon. Compressed air passes through the outer coil 10 and through the evaporating coils of the columns 1, 3 in succession, the liquefied air being delivered into the column 1. In a modification, liquid oxygen is delivered into a column in which the evaporating coil is traversed by compressed nitrogen afterwards expanded and delivered to cool the condenser at the top of the column ; the liquid from this column flows to a second column provided in duplicate with jacketed evaporating coils, the liquid passing out through the inner coils and compressed air for evaporation through the outer coils. When one of the inner coils becomes coated with liquid, this coil and its outer coil may be shut off and hot air passed through the outer coil, the inner coil being finally scavenged by opening auxiliary cocks.
GB2888034A 1934-10-09 1934-10-09 Process and apparatus for obtaining krypton and xenon Expired GB445472A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR779143D FR779143A (en) 1934-10-09 1934-10-01 Process for preparing crypton and xenon and specific equipment for carrying out this process
CH180778D CH180778A (en) 1934-10-09 1934-10-08 Method and device for the extraction of krypton and xenon from the air.
GB2888034A GB445472A (en) 1934-10-09 1934-10-09 Process and apparatus for obtaining krypton and xenon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2888034A GB445472A (en) 1934-10-09 1934-10-09 Process and apparatus for obtaining krypton and xenon

Publications (1)

Publication Number Publication Date
GB445472A true GB445472A (en) 1936-04-09

Family

ID=10282653

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2888034A Expired GB445472A (en) 1934-10-09 1934-10-09 Process and apparatus for obtaining krypton and xenon

Country Status (3)

Country Link
CH (1) CH180778A (en)
FR (1) FR779143A (en)
GB (1) GB445472A (en)

Also Published As

Publication number Publication date
CH180778A (en) 1935-11-15
FR779143A (en) 1935-03-29

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