BR9811841A - Alkaline tape passivation - Google Patents
Alkaline tape passivationInfo
- Publication number
- BR9811841A BR9811841A BR9811841-2A BR9811841A BR9811841A BR 9811841 A BR9811841 A BR 9811841A BR 9811841 A BR9811841 A BR 9811841A BR 9811841 A BR9811841 A BR 9811841A
- Authority
- BR
- Brazil
- Prior art keywords
- passivation
- alkaline
- tape
- ions
- iron
- Prior art date
Links
- 238000002161 passivation Methods 0.000 title abstract 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 229910052804 chromium Inorganic materials 0.000 abstract 2
- 239000011651 chromium Substances 0.000 abstract 2
- -1 iron (III) ions Chemical class 0.000 abstract 2
- 229910001335 Galvanized steel Inorganic materials 0.000 abstract 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 abstract 1
- 239000012670 alkaline solution Substances 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 239000008397 galvanized steel Substances 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 229910001425 magnesium ion Inorganic materials 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/313—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit
- B01F25/3131—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit with additional mixing means other than injector mixers, e.g. screens, baffles or rotating elements
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
Patente de Invenção: <B>"PASSIVAçãO DE FITA ALCALINA"<D>. Processo para a passivação alcalina de superfícies de aço zincadas e zincadas com ligas, bem como de alumínio em instalações de fita, sendo que as superfícies de metal são postas em contato com uma solução aquosa, formadora de complexo e contendo ferro, alcalina, que apresenta uma alcalinidade livre de 5 até 20 pontos e uma alcalinidade global na faixa de 7 até 30 pontos e contém 0,1 até 1 g/l de íons de magnésio, 0,1 até 1 g/l de íons de ferro (III) e 0,5 até 5 g/l de íons de amino ou de hidroxicarboxilato. Em seguida, pode efetuar-se uma pós-passivação contendo cromo ou sem cromo.Invention Patent: <B> "ALKALINE TAPE PASSIVATION" <D>. Process for the alkaline passivation of galvanized and alloyed galvanized steel surfaces, as well as aluminum in tape installations, and the metal surfaces are brought into contact with an aqueous, complex-forming, iron-containing, alkaline solution that presents a free alkalinity of 5 to 20 points and an overall alkalinity in the range of 7 to 30 points and contains 0.1 to 1 g / l of magnesium ions, 0.1 to 1 g / l of iron (III) ions and 0.5 to 5 g / l of amino or hydroxycarboxylate ions. Then, a post-passivation containing chromium or without chromium can be performed.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19733973A DE19733973C2 (en) | 1997-08-06 | 1997-08-06 | Device for dosing and mixing flowable media |
| PCT/EP1998/004670 WO1999007917A1 (en) | 1997-08-06 | 1998-07-25 | Alkaline strip passivation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR9811841A true BR9811841A (en) | 2000-08-15 |
Family
ID=7838123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR9811841-2A BR9811841A (en) | 1997-08-06 | 1998-07-25 | Alkaline tape passivation |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1001841A1 (en) |
| BR (1) | BR9811841A (en) |
| DE (1) | DE19733973C2 (en) |
| WO (1) | WO1999007461A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1319435A3 (en) * | 2001-12-12 | 2004-10-06 | Collectplan GmbH | Method and apparatus for introducing a first medium in a second medium |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2406470A1 (en) * | 1977-10-18 | 1979-05-18 | Utilisation Ration Gaz | MIXING DEVICE FOR TWO FLUIDS AND WING VALVE EQUIPPED WITH SUCH A DEVICE |
| JPS54127064A (en) * | 1978-03-06 | 1979-10-02 | Komax Systems Inc | Charging instrument of stationary mixer |
| DE4421352C2 (en) * | 1994-06-17 | 1997-03-20 | Specker Helmut | Method and device for diluting a liquid concentrate with water |
-
1997
- 1997-08-06 DE DE19733973A patent/DE19733973C2/en not_active Expired - Fee Related
-
1998
- 1998-07-24 EP EP98943781A patent/EP1001841A1/en not_active Withdrawn
- 1998-07-24 WO PCT/EP1998/004656 patent/WO1999007461A1/en not_active Ceased
- 1998-07-25 BR BR9811841-2A patent/BR9811841A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EP1001841A1 (en) | 2000-05-24 |
| DE19733973A1 (en) | 1999-04-29 |
| WO1999007461A1 (en) | 1999-02-18 |
| DE19733973C2 (en) | 2000-08-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B08F | Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette] |
Free format text: REFERENTE A 5A,6A E 7A ANUIDADES. |