US2160406A - Product for inhibiting the attack on metals by acids or salts and its applications - Google Patents
Product for inhibiting the attack on metals by acids or salts and its applications Download PDFInfo
- Publication number
- US2160406A US2160406A US111336A US11133636A US2160406A US 2160406 A US2160406 A US 2160406A US 111336 A US111336 A US 111336A US 11133636 A US11133636 A US 11133636A US 2160406 A US2160406 A US 2160406A
- Authority
- US
- United States
- Prior art keywords
- oils
- pure
- wood
- attack
- acid
- 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 - Lifetime
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
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/025—Cleaning or pickling metallic material with solutions or molten salts with acid solutions acidic pickling pastes
-
- 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
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/04—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors
- C23G1/06—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors
Definitions
- oils have a density between 0.890 and 0.935, most generally 0.910 to 0.925. They distil from 50-220" C. 80-90% passingon the average from l-130 C. to 205-210 C. They are rich in ketonic products (30-45% calculated as acetone) and allyl compounds (IO-30% calculated as allylalcohol) hydes, diketones, alcohols, hydrocarbons, furane and cyclopentane derivatives, amines, and other products which are unknown or not identified at present but which contribute for their part to tliil: special and characteristic properties of these 0 According to the present invention the unexpected'discovery has been made that these oils and all the fractions which are still very complex and which can be separated therefrom in one way or another exhibit inhibitory properties towards the attack on metals by acids or strongly dissociatedsadts.
- the residual oil about 0.9 part by volume may be extracted again by agitation in the cold with an equal volume of acid as described above and give a new quantity of extract only half as rich as the above extract.
- a practically deodorized extract may be ob tained by eliminating from the above extracts by distillation with a column, a first fraction of 10 which entrains the most volatile and strongly odoriferous constituents.
- a metal treating bath comprising a diluted mineral acid and as an inhibitor product preventing the attack of the 'metal itself a low proportion of crude wood spirit oils arising from the carbonization of wood.
- a metal pickling bath comprising a diluted mineral acid and as an inhibitor product preventing the attack of the metal itself a low proportion of crude wood spirit oils arising from carbonization of wood.
- A. metal scaling bath comprising a diluted mineral acid and as an inhibitor product preventing the attack of the metal itself a low proportion of crude wood spirit-oils arising from carbonization or wood.
- a metal treating bath comprising a diluted mineral acid and as an inhibitor product preventing the attack of the metal itself a low proportion of an aqueous extract of wood spirit oils.
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)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR50554T | 1939-04-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
US2160406A true US2160406A (en) | 1939-05-30 |
Family
ID=8685548
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US111336A Expired - Lifetime US2160406A (en) | 1939-04-29 | 1936-11-17 | Product for inhibiting the attack on metals by acids or salts and its applications |
Country Status (3)
Country | Link |
---|---|
US (1) | US2160406A (es) |
BE (2) | BE413600A (es) |
FR (2) | FR810779A (es) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2913408A (en) * | 1956-12-28 | 1959-11-17 | Dow Chemical Co | Corrosion inhibitors for ferrous metals in aqueous solutions of non-oxidizing acids |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3065184A (en) * | 1957-09-27 | 1962-11-20 | Harvel Res Corp | Acetone-formaldehyde reaction product corrosion inhibitor |
-
0
- BE BE436021D patent/BE436021A/xx unknown
- BE BE413600D patent/BE413600A/xx unknown
-
1935
- 1935-12-17 FR FR810779D patent/FR810779A/fr not_active Expired
-
1936
- 1936-11-17 US US111336A patent/US2160406A/en not_active Expired - Lifetime
-
1939
- 1939-04-29 FR FR50554D patent/FR50554E/fr not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2913408A (en) * | 1956-12-28 | 1959-11-17 | Dow Chemical Co | Corrosion inhibitors for ferrous metals in aqueous solutions of non-oxidizing acids |
Also Published As
Publication number | Publication date |
---|---|
FR810779A (fr) | 1937-03-30 |
BE436021A (es) | |
FR50554E (fr) | 1941-01-15 |
BE413600A (es) |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2913408A (en) | Corrosion inhibitors for ferrous metals in aqueous solutions of non-oxidizing acids | |
US2160406A (en) | Product for inhibiting the attack on metals by acids or salts and its applications | |
US2037762A (en) | Pickling compound and method of making and using same | |
CH659079A5 (fr) | Composition a base de fluorochlorohydrocarbure, d'ester phosphorique et d'acide carboxylique. | |
US2152406A (en) | Methods of pickling metals | |
DE2554776A1 (de) | Stabilisierte 1,1,1-trichloraethan- zusammensetzung | |
US2425414A (en) | Regeneration of spent caustic solutions for treating gasoline | |
US3281268A (en) | Scale removal | |
US3066097A (en) | Polyalkyl pyridines for corrosion inhibiting | |
DE135295T1 (de) | Reinigung von tertiaerem butylhydroperoxid enthaltend primaere und sekundaere hydroperoxide als verunreinigungen. | |
US2841625A (en) | Stabilization of chlorinated hydrocarbons with 2, 5-dimethyl-1, 5-hexadiene-3-yne andsynergistic mixtures containing same | |
US1961096A (en) | Inhibiting process and product | |
US1536545A (en) | Purification of esters | |
US2050354A (en) | Pickling of metal | |
US2330525A (en) | Corrosion inhibitor | |
US2178786A (en) | Purification of alkyl sulphates | |
US3282850A (en) | Corrosion inhibition with dipropargyl butylamine | |
US3431209A (en) | Solvent degreasing,self-emulsifying cleaning composition | |
US1807711A (en) | Sylvania | |
US2217874A (en) | Inhibitor | |
US2209445A (en) | Method and agent for breaking water-in-oil emulsions | |
US2313385A (en) | Process of extraction of oils from hardwood tar and purification thereof | |
GB823163A (en) | Corrosion inhibition | |
US2005605A (en) | Process and bath for pickling metals | |
US2072003A (en) | Condensation product of cinchona bark alkaloid |