US1838338A - Process and bath for pickling metals - Google Patents
Process and bath for pickling metals Download PDFInfo
- Publication number
- US1838338A US1838338A US247747A US24774728A US1838338A US 1838338 A US1838338 A US 1838338A US 247747 A US247747 A US 247747A US 24774728 A US24774728 A US 24774728A US 1838338 A US1838338 A US 1838338A
- Authority
- US
- United States
- Prior art keywords
- bath
- acid
- pickling
- organic bases
- metals
- 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
- 238000005554 pickling Methods 0.000 title description 14
- 239000002184 metal Substances 0.000 title description 13
- 229910052751 metal Inorganic materials 0.000 title description 13
- 150000002739 metals Chemical class 0.000 title description 9
- 238000000034 method Methods 0.000 title description 8
- 239000002253 acid Substances 0.000 description 18
- 150000007530 organic bases Chemical class 0.000 description 14
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 8
- 239000002585 base Substances 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 239000003208 petroleum Substances 0.000 description 6
- 239000003921 oil Substances 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 241000276489 Merlangius merlangus Species 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000010908 decantation Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- -1 for example Substances 0.000 description 1
- 238000004508 fractional distillation Methods 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 238000001256 steam distillation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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
- C23G1/04—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
- This invention relates to the production ofp ga rficbase from crackedpetroleum one and particularly to the use of sachtas'esi'fi' connection with the pickling of metals.
- oils which have been subjected to cracking temperatures contain valuable organic bases.
- oils cracked under pressure usually in .excess of 700 F., an
- Such pressure distillate is agitated with about 0.04 lbs. of 50 sulfuric acid per gallon of oil and the acid layer is settled out and withdrawn.
- the acid solution is then completely wimd with a strong base such as sodium hvdrnxide. whereupon the organic bases separateT- n oily layer on the surface of the solution, and may be removed therefrom by decantation.
- the organic bases may be removed from the neutralized solution by distillation with steam, or by extraction with a suitable solvent such as aht or the like, the organic bases being recovered from the extraction liquid by fractional distillation.
- a suitable solvent such as aht or the like
- the latter methods are particularly suitable where lime is used to neutralize the sulfuric acid, since in that case there is a considerable tendency for the oily bases to become emulsified, rendering separation by decantation difficult and incomplete.
- the organic bases may also be recovered from the acid sludges produced by treating such distillates with stronger acid, for example, sulfuric acid of 60 Baum or higher.
- acid sludge may suitably be neutralized with alkali and the bases recovered by steam distillation or solvent extraction as indicated above.
- the bases thus obtained are an oily liquid having a disagreeable odor and comprising a mixture of organic bases of nitrogenous character.
- the bases are capable of technical utilization. For example, they have a remarkable efiect in retarding the rate of corrosion of iron and steel and other metals by acid without substantial effect upon the rate of attack on oxides of iron. On this account they may be used in pickling metals, particularly fer- As an indication of this effect it may be stated that two baths of 5 sulfuric acid Were prepared. To one bath 0.135 gram of organic bases obtained as described above was added per liter. Strips of clean sheet iron were immersed in both baths which were maintained at 180 F. Durin a period of 10 minutes the strip immerse in the, pure A dilute acid sufiered a corrosion loss of 27 .5 mg. per square inch, While the strip immersed in similar acid to which the organic bases had been added had a corrosion loss of only 7.2 mg. per square inch.
- a pickling bath comprising a dilute acid and organic bases separated from cracked petroleum oil.
- a pickling bath comprising a dilute acid and a relatively small quantity of separated bases derived from cracked petroleum oil.
- a pickling bath comprising a dilute acid and free organic bases derived from petroleum oil.
Description
Patented Dec. 29, 1931 UNITED STATES PATENT OFFICE VANDERVEER VOORHEES, F WHITING, INDIANA, ASSIGNOR TO STANDARD OIL COM- PANY, 0F WHITING, INDIANA, A CORPORATION OF INDIANA PROCESS AND BATH FOR PIGKLING- METALS No Drawing.
This invention relates to the production ofp ga rficbase from crackedpetroleum one and particularly to the use of sachtas'esi'fi' connection with the pickling of metals. The
invention will be readily understood from the following description.
It is found that petroleum oils which have been subjected to cracking temperatures contain valuable organic bases. For the recovery of these bases it is preferred to employ oils cracked under pressure at temperatures 'ri hichare. usually in .excess of 700 F., an
particularly distillate products therefrom,
such as cracked gasoline and kerosene. It may be" stated specifically 'th'afgoo'd'result-s are obtained with pressure distillate derived from the cracking of mid-continent stock by the Burton process at temperatures of 720760 F. and pressures above 4 atmospheres.
As a specific examplesuch pressure distillate is agitated with about 0.04 lbs. of 50 sulfuric acid per gallon of oil and the acid layer is settled out and withdrawn. The acid solution is then completely wimd with a strong base such as sodium hvdrnxide. whereupon the organic bases separateT- n oily layer on the surface of the solution, and may be removed therefrom by decantation.
If desired, the organic bases may be removed from the neutralized solution by distillation with steam, or by extraction with a suitable solvent such as aht or the like, the organic bases being recovered from the extraction liquid by fractional distillation. The latter methods are particularly suitable where lime is used to neutralize the sulfuric acid, since in that case there is a considerable tendency for the oily bases to become emulsified, rendering separation by decantation difficult and incomplete.
The organic bases may also be recovered from the acid sludges produced by treating such distillates with stronger acid, for example, sulfuric acid of 60 Baum or higher. In this method the acid sludge may suitably be neutralized with alkali and the bases recovered by steam distillation or solvent extraction as indicated above.
drous metals.
Application filed January 18, 1928. Serial No. 247,747.
The bases thus obtained are an oily liquid having a disagreeable odor and comprising a mixture of organic bases of nitrogenous character.
The bases are capable of technical utilization. For example, they have a remarkable efiect in retarding the rate of corrosion of iron and steel and other metals by acid without substantial effect upon the rate of attack on oxides of iron. On this account they may be used in pickling metals, particularly fer- As an indication of this effect it may be stated that two baths of 5 sulfuric acid Were prepared. To one bath 0.135 gram of organic bases obtained as described above was added per liter. Strips of clean sheet iron were immersed in both baths which were maintained at 180 F. Durin a period of 10 minutes the strip immerse in the, pure A dilute acid sufiered a corrosion loss of 27 .5 mg. per square inch, While the strip immersed in similar acid to which the organic bases had been added had a corrosion loss of only 7.2 mg. per square inch.
This effect of the organic bases in reducing the attack of acids upon metals is exhibited by pickling baths of wide ranges of concentration and with wide ranges of added bases. The specific figures given are illustrative only and are intended to set forth a specific pickling bath suitable for commercial utilization.
i lthough the present invention has been described in connection with the details of specific embodiments thereof it is not intended that the specific details shall be regarded as limitations upon the scope of the invention, which is intended to be protected broadly within the scope of the appended claims.
I claim:
1. A pickling bath comprising a dilute acid and organic bases separated from cracked petroleum oil.
2. A pickling bath comprising a dilute acid and a relatively small quantity of separated bases derived from cracked petroleum oil.
3. The method of acid pickling metals which comprises subjecting the metal to the action of an acid pickling bath, and incorpo- 100 rating in said bath separated, free organic bases derived from petroleum.
4. The method of acid pickling metals which comprises subjecting the metal to the action of an acid pickling bath, and incorporating in said bath separated, free organic bases derived from a cracked petroleum oil.
5. The method of acid pickling metals which comprises subjectin the metal to the action of an acid pickling ath, and incorporating in said bath separated, free organic bases derived from a cracked petroleum distillate.
6. A pickling bath comprising a dilute acid and free organic bases derived from petroleum oil.
In testimony whereof I have hereunto set my hand this 4th day of January, 1928.
VANDERVEER VOORHEES.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US247747A US1838338A (en) | 1928-01-18 | 1928-01-18 | Process and bath for pickling metals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US247747A US1838338A (en) | 1928-01-18 | 1928-01-18 | Process and bath for pickling metals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1838338A true US1838338A (en) | 1931-12-29 |
Family
ID=22936204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US247747A Expired - Lifetime US1838338A (en) | 1928-01-18 | 1928-01-18 | Process and bath for pickling metals |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1838338A (en) |
-
1928
- 1928-01-18 US US247747A patent/US1838338A/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2778777A (en) | Removal of metal components from petroleum oils | |
| JP3871342B2 (en) | Method for neutralizing petroleum acids using overbased detergents | |
| US1838338A (en) | Process and bath for pickling metals | |
| US2009710A (en) | Method of removing ash-forming components from crude petroleum oil | |
| US2152406A (en) | Methods of pickling metals | |
| US1761328A (en) | Process of purifying lubricating-oil distillates | |
| US5643439A (en) | Process for neutralization of petroleum acids using alkali metal trialkylsilanolates | |
| US2980606A (en) | Hydrocarbon refining to reduce sulfur, nitrogen, and naphthenic acid content | |
| US1826144A (en) | Process of refining hydrocarbon oils with manganese salts | |
| US2176389A (en) | Process for pickling metals | |
| US1793146A (en) | Pickling metals | |
| US2293253A (en) | Handling of acid sludges | |
| US2005605A (en) | Process and bath for pickling metals | |
| US1973499A (en) | Treatment of hydrocarbon oils | |
| US1941251A (en) | Treatment of hydrocarbon oils | |
| US2209445A (en) | Method and agent for breaking water-in-oil emulsions | |
| US2226106A (en) | Corrosion inhibitor | |
| US1954959A (en) | Method of freeing oils from sulphur dioxide | |
| US2081168A (en) | Method of preventing scale depositions and removing such deposits from metallic surfaces | |
| US1950739A (en) | Refining treatment of hydrocarbon oils | |
| US1673045A (en) | Process for producing demulsifying agents for refining petroleum oil | |
| US1799780A (en) | Purification of tar acid-bearing oils | |
| US2217874A (en) | Inhibitor | |
| US1950735A (en) | Process for desulphurizing hydrocarbon oils | |
| US1938513A (en) | Process for working up naphthenic acid soap-containing oily residues |