GB550703A - Improvements in the degreasing of metal articles - Google Patents
Improvements in the degreasing of metal articlesInfo
- Publication number
- GB550703A GB550703A GB9094/41A GB909441A GB550703A GB 550703 A GB550703 A GB 550703A GB 9094/41 A GB9094/41 A GB 9094/41A GB 909441 A GB909441 A GB 909441A GB 550703 A GB550703 A GB 550703A
- Authority
- GB
- United Kingdom
- Prior art keywords
- water
- solvent
- degreasing
- layer
- metal
- 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
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
- C23G5/028—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing halogenated hydrocarbons
- C23G5/02806—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing halogenated hydrocarbons containing only chlorine as halogen atom
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)
Abstract
550,703. Degreasing non-porous articles. BOOTH, W. E., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. July 18, 1941, No. 9094. [Class 91] In the removal of solvent from a metal or like non-porous article degreased in a bath of a liquid chlorinated aliphatic hydrocarbon solvent capable of forming an azeotrope with water of boiling point lower than that of water, the article is withdrawn from the bath of solvent through a supernatant layer of water of substantial depth at a temperature of below its boiling point but above that of the azeotrope, a zone of vapour consisting of the vapours of water and solvent in azeotropic proportions being maintained above the water layer. Of suitable solvents comprising chloroform, ethylene dichloride, dichloroethylene, and trichloroethylene, the last is preferred, its azeotrope with water boiling at 73C. In the usual type of apparatus in which the vapour zone in the upper part of the open topped degreasing vessel 1 is limited by condensing coils 2, the space between the latter and the upper surface 21 of the water layer is connected by a wide duct 4 with a distillation vessel 3. The latter is supplied in azeotropic proportions with water from the aqueous layer overflowing a sloping wall 20 and with solvent from the lower liquid layer through a valved pipe 18, the respective layers in the degreasing vessel being continuously supplemented by the return of water and solvent through pipes 16 and 17 respectively from a separator 14 which collects the mixed condensate from a trough 11 arranged below the condensing coils. The temperatures of the layers of liquid are controlled by a heating coil 10 and a cooling coil 9. The apparatus is particularly applicable for the degreasing and subsequent drying from solvent of metal wool, metal swarf, metal pressings, wire cloth, and wire gauze. Specification 525,995 is referred to.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9094/41A GB550703A (en) | 1941-07-18 | 1941-07-18 | Improvements in the degreasing of metal articles |
US445040A US2310569A (en) | 1941-07-18 | 1942-05-29 | Degreasing of metal articles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9094/41A GB550703A (en) | 1941-07-18 | 1941-07-18 | Improvements in the degreasing of metal articles |
Publications (1)
Publication Number | Publication Date |
---|---|
GB550703A true GB550703A (en) | 1943-01-20 |
Family
ID=9865233
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9094/41A Expired GB550703A (en) | 1941-07-18 | 1941-07-18 | Improvements in the degreasing of metal articles |
Country Status (2)
Country | Link |
---|---|
US (1) | US2310569A (en) |
GB (1) | GB550703A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150197870A1 (en) * | 2014-01-15 | 2015-07-16 | The Board Of Trustees Of The Leland Stanford Junior University | Method for Plating Fine Grain Copper Deposit on Metal Substrate |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2660869A (en) * | 1951-10-23 | 1953-12-01 | Aurora Res Ind Inc | Dry cleaning apparatus |
US2838289A (en) * | 1954-04-30 | 1958-06-10 | Jr Leonard L Northrup | Means for cleaning equipment |
US2923648A (en) * | 1956-09-26 | 1960-02-02 | Du Pont | Di-phase cleaning system |
US3021235A (en) * | 1957-06-04 | 1962-02-13 | Du Pont | Metal cleaning process |
US2990302A (en) * | 1958-07-25 | 1961-06-27 | Purex Corp Ltd | Method of agitating cleansing liquid |
NL121693C (en) * | 1959-05-22 | |||
DE1280022B (en) * | 1959-10-19 | 1968-10-10 | Atomenergie Ab | Process for pickling zirconium or zirconium alloys |
US3070463A (en) * | 1961-06-08 | 1962-12-25 | Donald J Barday | Solvent recovering and purifying method and apparatus |
US3238065A (en) * | 1962-05-14 | 1966-03-01 | Du Pont | Method and apparatus for maintaining a constant boiling liquid level in vapor solvent degreasing operation |
US3530073A (en) * | 1968-09-30 | 1970-09-22 | Union Carbide Corp | Azeotropic composition |
US3632480A (en) * | 1970-06-08 | 1972-01-04 | Dow Chemical Co | Vapor degreasing apparatus with falling film heat exchange surface |
US3653963A (en) * | 1970-11-23 | 1972-04-04 | Robert N Lewis | Method for cleaning steel wool pads |
GB1399867A (en) * | 1971-09-27 | 1975-07-02 | Ici Ltd | Cleaning process |
US4204913A (en) * | 1978-04-06 | 1980-05-27 | Finishing Equipment, Inc. | Solvent recovery apparatus |
US4289586A (en) * | 1978-04-06 | 1981-09-15 | Finishing Equipment, Inc. | Solvent recovery method |
US4233120A (en) * | 1978-04-14 | 1980-11-11 | John Gladstone & Company (Engineering) Limited | Distillation method for solvent recovery |
US4313311A (en) * | 1979-06-04 | 1982-02-02 | Mccord James W | Vapor generating and recovering apparatus |
US4572767A (en) * | 1982-09-28 | 1986-02-25 | Mccord James W | Vapor generating and recovery apparatus |
US4556456A (en) * | 1984-02-21 | 1985-12-03 | Ruckriegel Michael J | Multi-vapor level vapor generating and recovery apparatus |
DE3725565A1 (en) * | 1987-08-01 | 1989-02-16 | Peter Weil | METHOD AND SYSTEM FOR DE-PAINTING OBJECTS WITH A SUBMERSIBLE CONTAINER WITH SOLVENT |
US4955403A (en) * | 1988-11-30 | 1990-09-11 | Westinghouse Electric Corp. | Closed loop system and method for cleaning articles with a volatile cleaning solvent |
US5075982A (en) * | 1990-09-25 | 1991-12-31 | Allied-Signal Inc. | Open top defluxer with improved solvent vapor recovery |
US5114495A (en) * | 1991-02-04 | 1992-05-19 | Vulcan Materials Company | Use of azeotropic compositions in vapor degreasing |
US7276138B1 (en) * | 2003-06-16 | 2007-10-02 | Mccord Richard G | Vapor generating and recovery apparatus |
-
1941
- 1941-07-18 GB GB9094/41A patent/GB550703A/en not_active Expired
-
1942
- 1942-05-29 US US445040A patent/US2310569A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150197870A1 (en) * | 2014-01-15 | 2015-07-16 | The Board Of Trustees Of The Leland Stanford Junior University | Method for Plating Fine Grain Copper Deposit on Metal Substrate |
Also Published As
Publication number | Publication date |
---|---|
US2310569A (en) | 1943-02-09 |
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