ATE7273T1 - METHOD AND DEVICE FOR CLEANING ALKALI METAL-WETTED WORKPIECES. - Google Patents

METHOD AND DEVICE FOR CLEANING ALKALI METAL-WETTED WORKPIECES.

Info

Publication number
ATE7273T1
ATE7273T1 AT81100125T AT81100125T ATE7273T1 AT E7273 T1 ATE7273 T1 AT E7273T1 AT 81100125 T AT81100125 T AT 81100125T AT 81100125 T AT81100125 T AT 81100125T AT E7273 T1 ATE7273 T1 AT E7273T1
Authority
AT
Austria
Prior art keywords
alcohol
workpieces
cleansing
alkali metal
rinsed
Prior art date
Application number
AT81100125T
Other languages
German (de)
Inventor
Helmut Dipl.-Ing. Vester
Rolf Dieter Schacht
Klaus Dr. Tillmetz
Original Assignee
Interatom Internationale Atomreaktorbau Gmbh
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
Application filed by Interatom Internationale Atomreaktorbau Gmbh filed Critical Interatom Internationale Atomreaktorbau Gmbh
Application granted granted Critical
Publication of ATE7273T1 publication Critical patent/ATE7273T1/en

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/28—Treating solids
    • G21F9/30—Processing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04—Cleaning involving contact with liquid
    • B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
    • C23G5/02—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Detergent Compositions (AREA)
  • Cleaning Or Drying Semiconductors (AREA)

Abstract

1. A process for cleansing workpieces, which are sprinkled with alkali metal, in dipping tanks in an installation which can be sealed and rendered inert, using alcohol, characterised in that a) a limited amount of alcohol, the concentration of which can be altered, is circulated from storage containers (9 and 10) to the dipping tank (2) and through filters (6, 7, or 8) ; b) the circulated alcohol is continuously separated from impurities, mechanically and/or chemically ; c) at the beginning of the cleansing process, the workpieces are rinsed with an alcohol which has a low water content and which has already been used for cleansing ; and d) at the end of the cleansing process, the workpieces are rinsed with a treated alcohol.
AT81100125T 1980-01-24 1981-01-09 METHOD AND DEVICE FOR CLEANING ALKALI METAL-WETTED WORKPIECES. ATE7273T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3002472A DE3002472C2 (en) 1980-01-24 1980-01-24 Method and device for cleaning workpieces wetted with alkali metal
EP81100125A EP0033073B1 (en) 1980-01-24 1981-01-09 Method and device for cleaning work pieces wetted with alkali-metal

Publications (1)

Publication Number Publication Date
ATE7273T1 true ATE7273T1 (en) 1984-05-15

Family

ID=6092839

Family Applications (1)

Application Number Title Priority Date Filing Date
AT81100125T ATE7273T1 (en) 1980-01-24 1981-01-09 METHOD AND DEVICE FOR CLEANING ALKALI METAL-WETTED WORKPIECES.

Country Status (4)

Country Link
EP (1) EP0033073B1 (en)
JP (1) JPS56110100A (en)
AT (1) ATE7273T1 (en)
DE (2) DE3002472C2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2200637C2 (en) * 2001-04-23 2003-03-20 Общество с ограниченной ответственностью "Чистые технологии" Method of cleaning surfaces from hydrocarbon contamination
JP4129484B2 (en) * 2002-10-07 2008-08-06 株式会社スター・クラスター Ultrasonic cleaning apparatus and ultrasonic cleaning method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2461244A1 (en) * 1974-12-23 1976-06-24 Kernforschung Gmbh Ges Fuer Cleaning tank for radioactively contaminated articles - extractor hood with internal channels mounted above tank cover
DE2545031C2 (en) * 1975-10-08 1984-10-11 Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe Process for cleaning system parts contaminated with sodium and system for carrying out the process
CH625744A5 (en) * 1978-04-04 1981-10-15 Fischer Georg Brugg Oehler Ag

Also Published As

Publication number Publication date
EP0033073B1 (en) 1984-05-02
DE3163327D1 (en) 1984-06-07
JPS56110100A (en) 1981-09-01
DE3002472A1 (en) 1981-08-13
DE3002472C2 (en) 1982-03-04
EP0033073A1 (en) 1981-08-05

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Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee