US1992045A - Phosphoric acid metal cleaning and rust preventing solution - Google Patents
Phosphoric acid metal cleaning and rust preventing solution Download PDFInfo
- Publication number
- US1992045A US1992045A US620552A US62055232A US1992045A US 1992045 A US1992045 A US 1992045A US 620552 A US620552 A US 620552A US 62055232 A US62055232 A US 62055232A US 1992045 A US1992045 A US 1992045A
- Authority
- US
- United States
- Prior art keywords
- phosphoric acid
- rust preventing
- oil
- sulfonated
- rust
- 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
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 title description 38
- 229910000147 aluminium phosphate Inorganic materials 0.000 title description 19
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 title description 17
- 229910052751 metal Inorganic materials 0.000 title description 15
- 239000002184 metal Substances 0.000 title description 15
- 238000004140 cleaning Methods 0.000 title description 12
- 229960004838 phosphoric acid Drugs 0.000 description 18
- 235000011007 phosphoric acid Nutrition 0.000 description 18
- 239000003921 oil Substances 0.000 description 11
- 235000019198 oils Nutrition 0.000 description 11
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000006277 sulfonation reaction Methods 0.000 description 5
- 239000002904 solvent Substances 0.000 description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 229910019142 PO4 Inorganic materials 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 239000002385 cottonseed oil Substances 0.000 description 3
- 235000012343 cottonseed oil Nutrition 0.000 description 3
- 235000014113 dietary fatty acids Nutrition 0.000 description 3
- 235000019441 ethanol Nutrition 0.000 description 3
- 229930195729 fatty acid Natural products 0.000 description 3
- 239000000194 fatty acid Substances 0.000 description 3
- 150000004665 fatty acids Chemical class 0.000 description 3
- 239000010452 phosphate Substances 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000010775 animal oil Substances 0.000 description 2
- 239000011928 denatured alcohol Substances 0.000 description 2
- 239000012456 homogeneous solution Substances 0.000 description 2
- 230000003449 preventive effect Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 159000000000 sodium salts Chemical class 0.000 description 2
- 150000003460 sulfonic acids Chemical class 0.000 description 2
- 235000015112 vegetable and seed oil Nutrition 0.000 description 2
- 239000008158 vegetable oil Substances 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004359 castor oil Substances 0.000 description 1
- 235000019438 castor oil Nutrition 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002285 corn oil Substances 0.000 description 1
- 235000005687 corn oil Nutrition 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- -1 ferrous metals Chemical class 0.000 description 1
- 235000021323 fish oil Nutrition 0.000 description 1
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910001463 metal phosphate Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004006 olive oil Substances 0.000 description 1
- 235000008390 olive oil Nutrition 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 238000005406 washing Methods 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/07—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing phosphates
- C23C22/08—Orthophosphates
Definitions
- aqueous phosphoric acid has the properties of dissolving rust, scale and other mineral incrustations found on the surfaces of metallic articles when they have p assed through the ordinary fabricating operations prior to painting or otherwise finishing them; co-incidentally with such dissolving of rust, etc., the phosphoric -acid attacks, to a slight extent, the metal itself to form a beneficial film of metal phosphate which protects the metal from further rust or otherwise being attacked by moist atmosphere
- Such a protecting phosphate film does not form wherever the metal surface has come in contact with grease, oil or shows handmarks, such spots being liable to rust'after the ph osphoric acid treatment and at the same time paints and other coatings do not adhere well to such incompletely protected spots.
- the organic products which I have found useful for this purpose are-the sulfonatiori products of animal and vegetable oils which are the glycerids of high molecular fatty acids. Physically,
- aqueous phosphoric acid and the sulfonated oil in amounts sufilcient to produce a homogeneous solution.
- Methyl alcohol, ethyl alcohol, acetone, etc. are convenient solvents for the production of a homogeneous solution of phosphoric acid 5 and a. sulfonated oil in water.
- I have, for instance prepared a base solution of 1 volume phosphoric acid, 1 volume denatured alcohol or other similar solvent, 1.5 vol- 15 ume water, to which I added from 1 to 5% of one of the following sulfonation products: sulfonated castor oil, sulfonated corn oil, sulfonated cotton seed oil, sulfonated fish oil, sulfonated olive oil, sodium salt of sulfonatedcorn oil, sodium salt of 20 sulfonated cotton seed oil, ammonium salt of sulfonated, cotton seed oil, etc.
- Pieces 'of sheet iron slightly rusted and coated with oil were immersed in such solutions; they were readily wet, the rust thereon dissolved quick- 25 ly and left a rust preventing film of phosphate on and completely covering the metal.
- a metal cleaning and rust preventing solu- 35 tion comprising aqueous phosphoric acid, a sulfonated vegetable'oil and ethyl alcohol.
- a metal cleaning and rust preventing solution comprising 1 volume of 85% phosphoric acid, a 1 volumeof denatured alcohol, 1 volumes of 40 water and from 1 to 5% of the total of a sulfonated vegetable oil.
- a metal cleaning and rust preventing solution comprising aqueous phosphoric acid, a suljonated animal oil and ethyl alcohol.
- a metal cleaning and rust preventing solution comprising aqueous phosphoric acid and a sulfonated glycerid of a high molecular fatty acid.
- a metal cleaning and rust preventing solution comprising aqueous phosphoric acid, a sul- 50 fonated glycerid of a high molecular fatty acid and a water soluble, .common solvent for phos- ⁇ phoric acid and said sulfonated acid.
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Description
William K.
signor NITED STATES PATENT OFFICE PHOSPHORIC ACID METAL'CLEANING AND RUST PREVENTING SOLUTION to The Schweitzer, East Cleveland, Ohio, as-
Grasselli Chemical Company,
Cleveland, Ohio, a corporation of Delaware No Drawin The present invention relates to 5 Claims.
improvements in cleaning metallic surfaces and protecting them from rusting, particularly those of articles of ferrous metals and consists in novel cleaning solu- 5 tions containing phosphoric acid as the rust removing and preventive agent and oil sulfonation products, which facilitate the action of the phosphoric acid on the metal surfaces.
As is well known, aqueous phosphoric acid has the properties of dissolving rust, scale and other mineral incrustations found on the surfaces of metallic articles when they have p assed through the ordinary fabricating operations prior to painting or otherwise finishing them; co-incidentally with such dissolving of rust, etc., the phosphoric -acid attacks, to a slight extent, the metal itself to form a beneficial film of metal phosphate which protects the metal from further rust or otherwise being attacked by moist atmosphere Such a protecting phosphate film however, does not form wherever the metal surface has come in contact with grease, oil or shows handmarks, such spots being liable to rust'after the ph osphoric acid treatment and at the same time paints and other coatings do not adhere well to such incompletely protected spots. I have found on the oily or greasy spots of the that oil sulfonation products act metal surface cleaning them, whereby they become amenable to the action of phosphoric acid, which then forms a continuous protecting film over the whole surface. Such sulfonated oils on the other hand,
donot interfere with the removal scale, etc., and do not prevent the attack of the of rust, oxide,
metal by the phosphoric acid to produce the phosphate film.
The organic products which I have found useful for this purpose are-the sulfonatiori products of animal and vegetable oils which are the glycerids of high molecular fatty acids. Physically,
- these products are characterized by being water soluble and generally liquid at ordinary temperatures.
While readily soluble in water, such sulfonation products-are less soluble in a phosphoric acid solution ofthe concentrations usually employed for cleaning and rust preventing I,- therefore,
usesucli emulsions which are eas th metallic surfaces and remove with water. I
It is, however, more convenient mixture a water purposes.
1 can emulsify these sulfonation products with the phosphoric acid solution and ily applied to d by washing to add to the soluble common solvent for g. Application July 1, 1932, Serial No. 620,552
aqueous phosphoric acid and the sulfonated oil in amounts sufilcient to produce a homogeneous solution. Methyl alcohol, ethyl alcohol, acetone, etc., are convenient solvents for the production of a homogeneous solution of phosphoric acid 5 and a. sulfonated oil in water.
The exact amounts of sulfonated oil which can be incorporated in this manner in aqueous phosphoric acid and will produce an efficient cleaning and rust preventive solution, is not particl0 ularly critical and amounts of from 1 to 5% of the solution have given excellent results.
I have, for instance prepared a base solution of 1 volume phosphoric acid, 1 volume denatured alcohol or other similar solvent, 1.5 vol- 15 ume water, to which I added from 1 to 5% of one of the following sulfonation products: sulfonated castor oil, sulfonated corn oil, sulfonated cotton seed oil, sulfonated fish oil, sulfonated olive oil, sodium salt of sulfonatedcorn oil, sodium salt of 20 sulfonated cotton seed oil, ammonium salt of sulfonated, cotton seed oil, etc.
Pieces 'of sheet iron slightly rusted and coated with oil were immersed in such solutions; they were readily wet, the rust thereon dissolved quick- 25 ly and left a rust preventing film of phosphate on and completely covering the metal.
It will be understood that when using the salts of the sulfonated oils, such as mentioned above, the free sulfonic acids will be formed in the phos- 30 phoric acid solutions and for this reason the salts X will be the full equivalents of the sulfonic acids themselves. 7
I claim: v
1. A metal cleaning and rust preventing solu- 35 tion comprising aqueous phosphoric acid, a sulfonated vegetable'oil and ethyl alcohol.
2. A metal cleaning and rust preventing solution comprising 1 volume of 85% phosphoric acid, a 1 volumeof denatured alcohol, 1 volumes of 40 water and from 1 to 5% of the total of a sulfonated vegetable oil. I
3. A metal cleaning and rust preventing solution comprising aqueous phosphoric acid, a suljonated animal oil and ethyl alcohol.
4. A metal cleaning and rust preventing solution comprising aqueous phosphoric acid and a sulfonated glycerid of a high molecular fatty acid.
5. A metal cleaning and rust preventing solution comprising aqueous phosphoric acid, a sul- 50 fonated glycerid of a high molecular fatty acid and a water soluble, .common solvent for phos- \phoric acid and said sulfonated acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US620552A US1992045A (en) | 1932-07-01 | 1932-07-01 | Phosphoric acid metal cleaning and rust preventing solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US620552A US1992045A (en) | 1932-07-01 | 1932-07-01 | Phosphoric acid metal cleaning and rust preventing solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1992045A true US1992045A (en) | 1935-02-19 |
Family
ID=24486404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US620552A Expired - Lifetime US1992045A (en) | 1932-07-01 | 1932-07-01 | Phosphoric acid metal cleaning and rust preventing solution |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1992045A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2614948A (en) * | 1947-03-27 | 1952-10-21 | Michael W Freeman | Producing modified machine elements |
| US2694059A (en) * | 1951-05-17 | 1954-11-09 | Hercules Powder Co Ltd | Corrosion inhibition in chlorite bleaching of cellulose derivatives |
| US4289638A (en) * | 1979-09-28 | 1981-09-15 | Svenson Bruce E | Metal treatment |
| US5279707A (en) * | 1992-10-23 | 1994-01-18 | Time Savers | Die discoloration remover solution and method |
| WO2015162604A1 (en) | 2014-04-22 | 2015-10-29 | Green Future Ltd. | Method and formulations for removing rust and scale from steel and for regenerating pickling liquor in hot-dip galvanization process |
-
1932
- 1932-07-01 US US620552A patent/US1992045A/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2614948A (en) * | 1947-03-27 | 1952-10-21 | Michael W Freeman | Producing modified machine elements |
| US2694059A (en) * | 1951-05-17 | 1954-11-09 | Hercules Powder Co Ltd | Corrosion inhibition in chlorite bleaching of cellulose derivatives |
| US4289638A (en) * | 1979-09-28 | 1981-09-15 | Svenson Bruce E | Metal treatment |
| US5279707A (en) * | 1992-10-23 | 1994-01-18 | Time Savers | Die discoloration remover solution and method |
| WO2015162604A1 (en) | 2014-04-22 | 2015-10-29 | Green Future Ltd. | Method and formulations for removing rust and scale from steel and for regenerating pickling liquor in hot-dip galvanization process |
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