DE811648C - Metal treatment agents - Google Patents
Metal treatment agentsInfo
- Publication number
- DE811648C DE811648C DEP13346A DEP0013346A DE811648C DE 811648 C DE811648 C DE 811648C DE P13346 A DEP13346 A DE P13346A DE P0013346 A DEP0013346 A DE P0013346A DE 811648 C DE811648 C DE 811648C
- Authority
- DE
- Germany
- Prior art keywords
- metal treatment
- sodium sulfate
- phosphoric acid
- sodium
- oxidizing agents
- 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
- 229910052751 metal Inorganic materials 0.000 title claims description 5
- 239000002184 metal Substances 0.000 title claims description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 16
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 8
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 8
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 7
- 235000011152 sodium sulphate Nutrition 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 239000001488 sodium phosphate Substances 0.000 claims description 5
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 claims description 4
- 239000007800 oxidant agent Substances 0.000 claims description 4
- 229910000640 Fe alloy Inorganic materials 0.000 claims description 3
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 claims description 3
- 235000010344 sodium nitrate Nutrition 0.000 claims description 3
- 239000004317 sodium nitrate Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 2
- 229910000162 sodium phosphate Inorganic materials 0.000 claims 1
- 238000004381 surface treatment Methods 0.000 claims 1
- 239000003973 paint Substances 0.000 description 4
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 description 3
- 229910000397 disodium phosphate Inorganic materials 0.000 description 3
- 235000019800 disodium phosphate Nutrition 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- IKOKHHBZFDFMJW-UHFFFAOYSA-N 2-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]-3-(2-morpholin-4-ylethoxy)pyrazol-1-yl]-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical group C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C=1C(=NN(C=1)CC(=O)N1CC2=C(CC1)NN=N2)OCCN1CCOCC1 IKOKHHBZFDFMJW-UHFFFAOYSA-N 0.000 description 1
- JHWIEAWILPSRMU-UHFFFAOYSA-N 2-methyl-3-pyrimidin-4-ylpropanoic acid Chemical compound OC(=O)C(C)CC1=CC=NC=N1 JHWIEAWILPSRMU-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910000406 trisodium phosphate Inorganic materials 0.000 description 1
- 235000019801 trisodium phosphate Nutrition 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc 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
- 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
- C23C22/24—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 hexavalent chromium compounds
- C23C22/33—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 hexavalent chromium compounds containing also phosphates
-
- 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
- C23C22/10—Orthophosphates containing oxidants
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)
- Chemical Treatment Of Metals (AREA)
Description
Metallbehandlungsmittel Es ist bekannt, daß man Teile aus Eisen und Eisenlegierungen zwecks Erhöhung des Rostschutzes und der Haftfestigkeit von Überzügen, wie Lacken, einer Behandlung mit Phosphorsäure unterzieht. Der Versand und die Lagerung von flüssiger Phosphorsäure erfordern einen Aufwand von Glasemballage, der das Verfahren in der Handhabung ungünstig beeinflußt und oft unwirtschaftlich macht.Metal treatment agents It is known that parts made of iron and Iron alloys to increase rust protection and the adhesive strength of coatings, such as paints, subjecting them to a treatment with phosphoric acid. Shipping and storage of liquid phosphoric acid require an expense of glass packaging, which the process adversely affected in handling and often makes it uneconomical.
Es wurde nun gefunden, daß Mischungen aus Natriumsulfat und Phosphorsäure lagerfähige Pulver darstellen, die mit sehr gutem Erfolg als Phosphatierungsmittel verwendet werden können. Solche Mischungen kann man z. B. dadurch erhalten, daß man wasserfreies Natriumsulfat in fein gepulverter Form in. geeigneten Vorrichtungen mit konzentrierter Phosphorsäure mischt. Die untere Grenze des Natriumsulfatgehaltes liegt bei etwa 40°/0. Man kann diese Gemische aber auch technisch besonders einfach dadurch herstellen, daß man wasserfreie oder wasserarme Natriumsalze der Phosphorsäure, wie Dinatriumphosphat oder Trinatriumphosphat, mit entsprechenden Mengen konzentrierter Schwefelsäure umsetzt. Da bei der Umsetzung von primärem Natriumphosphat die entstehende Menge von Natriumsulfat nicht genügt, um ein trockenes Pulver zu erhalten, hat man bei der Verwendung dieses Salzes so verfahren, daß man eine entsprechende Menge Natriumsulfat zusetzt. Die erhaltenen Produkte sind, trotzdem sie, z. B. im Fall der Verwendung von Dinatriumphosphat, etwa 400/a freie, bekanntlich sehr hygroskopische Phosphorsäure enthalten, absolut lagerbeständig. Sie können daher z. B. ohne weiteres in Papiersäcken, Papptrommeln u. dgl. versandt werden.It has now been found that mixtures of sodium sulfate and phosphoric acid represent storable powders that are very successful as phosphating agents can be used. Such mixtures can be used, for. B. obtained in that anhydrous sodium sulfate in finely powdered form in suitable devices mixes with concentrated phosphoric acid. The lower limit of the sodium sulfate content is around 40 ° / 0. However, these mixtures can also be technically particularly simple by preparing anhydrous or low-water sodium salts of phosphoric acid, like disodium phosphate or trisodium phosphate, with corresponding amounts more concentrated Converts sulfuric acid. Since in the implementation of primary sodium phosphate the resulting Amount of sodium sulfate is insufficient to obtain a dry powder, one has When using this salt, proceed in such a way that an appropriate amount is used Adds sodium sulfate. The products obtained are, in spite of the fact that they are e.g. B. in the case the use of disodium phosphate, about 400 / a free, known to be very hygroscopic Contains phosphoric acid, absolutely stable. You can therefore z. B. without further ado be sent in paper sacks, cardboard drums and the like.
Es wurde weiter gefunden, daß die Wirksamkeit der so hergestellten festen Mittel noch durch Zusatz von Oxydationsmitteln verbessert werden kann. So kann man diesen Mitteln z. B. Natriumnitrat, -Chromsäure oder chromsaure Salze allein oder im Gemisch miteinander zusetzen. Dadurch wird eine besonders gleichmäßige Ausbildung der Phosphatschicht erreicht und ein vorzüglicher Rostschutz sowie besonders gute Lackhaftfestigkeit erzielt.It was further found that the effectiveness of the solid means can still be improved by adding oxidizing agents. So can one of these funds z. B. sodium nitrate, chromic acid or chromic acid Add salts alone or in a mixture. This makes a particularly uniform Formation of the phosphate layer achieved and an excellent rust protection as well as special good paint adhesion achieved.
Die Anwendung der neuen Mittel erfolgt in wäßriger Lösung in 2- bis io°/'oiger Konzentration zweckmäßig bei erhöhter Temperatur. In der gleichen Weise lassen sich aus Zink oder Kadmium bestehende oder mit solchen Schichten überzogene Gegenstände behandeln. Beispiel io6 Gewichtsteile wasserfreies Dinatriumphosphat werden in einer Mischvorrichtung mit etwa 72 Gewichtsteilen 96°%oiger Schwefelsäure vermischt. Man erhält nach kurzer Zeit ein vollkommen trockenes, schüttiges Pulver, dem man dann noch etwa 8 Gewichtsteile Natriumnitrat und i Gewichtsteil Natriumbichromat beimischt. Eisenbleche, die mit einer 2°;'",igen Lösung dieses Mittels etwa 5 bis io Minuten bei 9o ° behandelt wurden, zeigten eine gleichmäßige Phosphatschichtbildung. Die so behandelten Bleche wurden auf übliche Weise mit Grund- und Decklack versehen und dann die Lackhaftfestigkeit durch Biegeproben und die Rostsicherheit durch die Gitterprobe bestimmt. Sowohl Korrosionsschutz als auch Lackhaftfestigkeit waren vorzüglich.The application of the new funds takes place in aqueous solution in 2- to 10% concentration expediently at elevated temperature. In the same way can be made of zinc or cadmium or coated with such layers Handle objects. Example 10 6 parts by weight of anhydrous disodium phosphate are in a mixer with about 72 parts by weight of 96% strength sulfuric acid mixed. A completely dry, loose powder is obtained after a short time, to which about 8 parts by weight of sodium nitrate and 1 part by weight of sodium dichromate are added admixed. Iron sheets, which with a 2 °; '"solution of this agent about 5 to Treated for 10 minutes at 90 ° showed a uniform phosphate layer formation. The panels treated in this way were provided with a base coat and top coat in the usual way and then the paint adhesion by bending tests and the rust resistance by the Grid sample determined. Both corrosion protection and paint adhesion were excellent.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP13346A DE811648C (en) | 1948-10-02 | 1948-10-02 | Metal treatment agents |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP13346A DE811648C (en) | 1948-10-02 | 1948-10-02 | Metal treatment agents |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE811648C true DE811648C (en) | 1951-08-23 |
Family
ID=7364571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEP13346A Expired DE811648C (en) | 1948-10-02 | 1948-10-02 | Metal treatment agents |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE811648C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2819193A (en) * | 1952-06-24 | 1958-01-07 | Parker Rust Proof Co | Solution and process for treating metal surfaces |
| DE1153222B (en) * | 1956-01-18 | 1963-08-22 | Metallgesellschaft Ag | Process for applying phosphate coatings to metal surfaces and solution for carrying out the process |
-
1948
- 1948-10-02 DE DEP13346A patent/DE811648C/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2819193A (en) * | 1952-06-24 | 1958-01-07 | Parker Rust Proof Co | Solution and process for treating metal surfaces |
| DE1153222B (en) * | 1956-01-18 | 1963-08-22 | Metallgesellschaft Ag | Process for applying phosphate coatings to metal surfaces and solution for carrying out the process |
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