GB1317960A - Vapour degreasing process and apparatus - Google Patents

Vapour degreasing process and apparatus

Info

Publication number
GB1317960A
GB1317960A GB1317960DA GB1317960A GB 1317960 A GB1317960 A GB 1317960A GB 1317960D A GB1317960D A GB 1317960DA GB 1317960 A GB1317960 A GB 1317960A
Authority
GB
United Kingdom
Prior art keywords
vapour
solvent
degreasing
zone
articles
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
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.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
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 Dow Chemical Co filed Critical Dow Chemical Co
Publication of GB1317960A publication Critical patent/GB1317960A/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 By Liquid Or Steam (AREA)

Abstract

1317960 Vapour degreasing apparatus DOW CHEMICAL CO 22 July 1970 35573/70 Heading C7E Vapour degreasing apparatus comprises a vapour zone housed in a main chamber 1 with means for confining a volatile liquid solvent below the vapour zone, and a heat-exchanger in open communication with the vapour zone; the heat exchanger comprises a surface 14 inclined and adapted to accommodate a falling liquid film comprising contaminated condensate, heating means to re-evaporate volatile solvent from said falling film, and trap means 17 at the lower end of said surface for collecting and removing high-boiling liquid contaminants. In use, degreasing solvent such as trichloroethylene is pumped by pump 18 via 19 to flow down surface 14 which is heated by steam, hot gas or electricity, giving rise to vapour which is confined below level 20 by watercooled tubes 2 and cold wall 4, condensed solvent passing via trough 3 and pipe 5 to separator 6, whence, after removal of water through 7, solvent passes back into vessel 1 through 8. The dirty articles may be dipped into the degreasing solvent or cleaning may be assisted using a spray lance; however, normal cleaning is achieved merely by condensation of vapour on the articles.
GB1317960D 1970-07-22 1970-07-22 Vapour degreasing process and apparatus Expired GB1317960A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3557370 1970-07-22

Publications (1)

Publication Number Publication Date
GB1317960A true GB1317960A (en) 1973-05-23

Family

ID=10379234

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1317960D Expired GB1317960A (en) 1970-07-22 1970-07-22 Vapour degreasing process and apparatus

Country Status (2)

Country Link
GB (1) GB1317960A (en)
NL (1) NL7010229A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3714312A1 (en) * 1987-04-29 1988-11-10 Siemens Ag Process and device for cleaning electrical devices with an insulating oil in a vessel
GB2209768A (en) * 1987-09-16 1989-05-24 Croftshaw Equipment Limited Vapour/liquid solvent degreasing plant
GB2224639A (en) * 1988-11-15 1990-05-16 Canon Kk Vapor cleaning method
CN111804116A (en) * 2020-07-31 2020-10-23 宁波巨化化工科技有限公司 Trichloroethylene quenching coarse separation tower

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3714312A1 (en) * 1987-04-29 1988-11-10 Siemens Ag Process and device for cleaning electrical devices with an insulating oil in a vessel
GB2209768A (en) * 1987-09-16 1989-05-24 Croftshaw Equipment Limited Vapour/liquid solvent degreasing plant
GB2224639A (en) * 1988-11-15 1990-05-16 Canon Kk Vapor cleaning method
FR2638984A1 (en) * 1988-11-15 1990-05-18 Canon Kk APPARATUS AND METHOD FOR STEAM CLEANING AND DRYING
DE3937864A1 (en) * 1988-11-15 1990-06-21 Canon Kk METHOD AND DEVICE FOR CLEANING AND DRYING BY STEAM
GB2224639B (en) * 1988-11-15 1993-03-24 Canon Kk Vapor cleaning and drying method and apparatus
CN111804116A (en) * 2020-07-31 2020-10-23 宁波巨化化工科技有限公司 Trichloroethylene quenching coarse separation tower
CN111804116B (en) * 2020-07-31 2021-12-14 宁波巨化化工科技有限公司 Trichloroethylene quenching coarse separation tower

Also Published As

Publication number Publication date
NL7010229A (en) 1972-01-12

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees