GB400997A - Improvements in or relating to degreasing - Google Patents

Improvements in or relating to degreasing

Info

Publication number
GB400997A
GB400997A GB13157/32A GB1315732A GB400997A GB 400997 A GB400997 A GB 400997A GB 13157/32 A GB13157/32 A GB 13157/32A GB 1315732 A GB1315732 A GB 1315732A GB 400997 A GB400997 A GB 400997A
Authority
GB
United Kingdom
Prior art keywords
solvent
water
coil
chamber
pipe
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
GB13157/32A
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB13157/32A priority Critical patent/GB400997A/en
Priority to US669610A priority patent/US2020335A/en
Publication of GB400997A publication Critical patent/GB400997A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C23G5/04—Apparatus

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Abstract

<PICT:0400997/III/1> In a process for degreasing with volatile solvents in which solvent vapours are condensed by water-cooled surfaces, the cooling water is warmed to a temperature above the dew point of the atmosphere, whereby the condensed solvent is free from water. A tank 1 is divided by a heat-insulated wall 4 into chambers 2, 3 each provided with thermostatically controlled heaters 5, 6, and perforated work supports 13. Chamber 2 is filled with a solvent such as trichlorethylene which flows through an opening 18 into the lower part of chamber 3. A cooling coil 19 is mounted in the upper vapour space and is connected through pipes 25, 26 to a water main 21 and to a coil 14. Water flows from the main 21 provided with a valve 23 through the coil 14 where it is heated by the solvent, and the outflowing warmed water passes to the upper coil 19 through a pipe 25. The desired temperature, indicated by a thermometer 27, may be obtained by admitting cold water to the pipe 25 through a valve 24. Greasy metal articles are first immersed in liquid solvent in chamber 2 and are then transferred to chamber 3 containing solvent vapour. The condensed vapours formed by the coil 19 are collected in a gutter 29 and pass through pipe 32 to a clean solvent tank or are returned through pipe 31 to chamber 2. If desired solvent vapours are first brought into contact with coil 19 and then with a second cooler surface, the resulting condensate of solvent and water being collected separately. Specification 389,837 is referred to.
GB13157/32A 1932-05-06 1932-05-06 Improvements in or relating to degreasing Expired GB400997A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB13157/32A GB400997A (en) 1932-05-06 1932-05-06 Improvements in or relating to degreasing
US669610A US2020335A (en) 1932-05-06 1933-05-05 Degreasing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB13157/32A GB400997A (en) 1932-05-06 1932-05-06 Improvements in or relating to degreasing

Publications (1)

Publication Number Publication Date
GB400997A true GB400997A (en) 1933-11-06

Family

ID=10017905

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13157/32A Expired GB400997A (en) 1932-05-06 1932-05-06 Improvements in or relating to degreasing

Country Status (2)

Country Link
US (1) US2020335A (en)
GB (1) GB400997A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE965008C (en) * 1952-04-20 1957-05-29 Hans Joachim Hoehn Degreaser for metals
DE1107480B (en) * 1955-09-08 1961-05-25 Josef Albert Dreyer Cleaning and degreasing apparatus
DE1208150B (en) * 1959-06-01 1965-12-30 Du Pont Process for the continuous degreasing, phosphating, rinsing and drying of metal bodies
DE3334067A1 (en) * 1983-09-21 1985-03-28 LPW-Reinigungstechnik GmbH, 7024 Filderstadt Chamber installation for the surface treatment of metals or other materials

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2469040A (en) * 1946-08-21 1949-05-03 Optimus Equipment Company Degreasing device
US2823174A (en) * 1953-09-09 1958-02-11 Blakeslee & Co G S Degreasing machine with cooling jacket
US2816065A (en) * 1955-04-18 1957-12-10 Raymond W Legler Vapor degreaser
US3479252A (en) * 1966-11-14 1969-11-18 Uddeholms Ab Apparatus for the degreasing of articles by means of a solvent
US3375177A (en) * 1967-05-05 1968-03-26 Autosonics Inc Vapor degreasing with solvent distillation and condensation recovery
US5048548A (en) * 1990-02-15 1991-09-17 E. I. Du Pont De Nemours And Company Vapor control system for vapor degreasing/defluxing equipment
US5142873A (en) * 1990-02-15 1992-09-01 E. I. Du Pont De Nemours And Company Vapor control system for vapor degreasing/defluxing equipment

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE965008C (en) * 1952-04-20 1957-05-29 Hans Joachim Hoehn Degreaser for metals
DE1107480B (en) * 1955-09-08 1961-05-25 Josef Albert Dreyer Cleaning and degreasing apparatus
DE1208150B (en) * 1959-06-01 1965-12-30 Du Pont Process for the continuous degreasing, phosphating, rinsing and drying of metal bodies
DE3334067A1 (en) * 1983-09-21 1985-03-28 LPW-Reinigungstechnik GmbH, 7024 Filderstadt Chamber installation for the surface treatment of metals or other materials

Also Published As

Publication number Publication date
US2020335A (en) 1935-11-12

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