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 PDF

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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
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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
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US111336A
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English (en)
Inventor
Mascre Jacques Edouard Georges
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.)
Lambiotte Freres Ets
Original Assignee
Lambiotte Freres Ets
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.)
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Publication date
Application filed by Lambiotte Freres Ets filed Critical Lambiotte Freres Ets
Application granted granted Critical
Publication of US2160406A publication Critical patent/US2160406A/en
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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)
US111336A 1939-04-29 1936-11-17 Product for inhibiting the attack on metals by acids or salts and its applications Expired - Lifetime US2160406A (en)

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)

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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)

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US (1) US2160406A (US06342305-20020129-C00040.png)
BE (2) BE436021A (US06342305-20020129-C00040.png)
FR (2) FR810779A (US06342305-20020129-C00040.png)

Cited By (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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
BE436021A (US06342305-20020129-C00040.png)
FR50554E (fr) 1941-01-15
BE413600A (US06342305-20020129-C00040.png)
FR810779A (fr) 1937-03-30

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