US20040221870A1 - Product and method to clean titanium surfaces - Google Patents
Product and method to clean titanium surfaces Download PDFInfo
- Publication number
- US20040221870A1 US20040221870A1 US10/830,564 US83056404A US2004221870A1 US 20040221870 A1 US20040221870 A1 US 20040221870A1 US 83056404 A US83056404 A US 83056404A US 2004221870 A1 US2004221870 A1 US 2004221870A1
- Authority
- US
- United States
- Prior art keywords
- cleaning product
- product according
- fixative
- descaling
- propellant
- 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.)
- Abandoned
Links
- 239000010936 titanium Substances 0.000 title claims abstract description 46
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 229910052719 titanium Inorganic materials 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims description 16
- 238000004140 cleaning Methods 0.000 claims abstract description 78
- 239000000126 substance Substances 0.000 claims abstract description 72
- 239000000834 fixative Substances 0.000 claims abstract description 67
- 239000000203 mixture Substances 0.000 claims abstract description 63
- 239000003380 propellant Substances 0.000 claims abstract description 44
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000002562 thickening agent Substances 0.000 claims abstract description 35
- 239000004094 surface-active agent Substances 0.000 claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910017604 nitric acid Inorganic materials 0.000 claims abstract description 20
- 239000007789 gas Substances 0.000 claims description 35
- 239000007921 spray Substances 0.000 claims description 16
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- 239000006260 foam Substances 0.000 claims description 11
- LVGUZGTVOIAKKC-UHFFFAOYSA-N 1,1,1,2-tetrafluoroethane Chemical group FCC(F)(F)F LVGUZGTVOIAKKC-UHFFFAOYSA-N 0.000 claims description 10
- 150000001875 compounds Chemical class 0.000 claims description 10
- QPJSUIGXIBEQAC-UHFFFAOYSA-N n-(2,4-dichloro-5-propan-2-yloxyphenyl)acetamide Chemical compound CC(C)OC1=CC(NC(C)=O)=C(Cl)C=C1Cl QPJSUIGXIBEQAC-UHFFFAOYSA-N 0.000 claims description 9
- KJFMBFZCATUALV-UHFFFAOYSA-N phenolphthalein Chemical group C1=CC(O)=CC=C1C1(C=2C=CC(O)=CC=2)C2=CC=CC=C2C(=O)O1 KJFMBFZCATUALV-UHFFFAOYSA-N 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 8
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 claims description 8
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical group [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 8
- 235000019333 sodium laurylsulphate Nutrition 0.000 claims description 8
- 239000004113 Sepiolite Substances 0.000 claims description 5
- 229910052624 sepiolite Inorganic materials 0.000 claims description 5
- 235000019355 sepiolite Nutrition 0.000 claims description 5
- 239000003570 air Substances 0.000 claims description 4
- 125000000129 anionic group Chemical group 0.000 claims description 4
- 239000001569 carbon dioxide Substances 0.000 claims description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 4
- 229930195733 hydrocarbon Natural products 0.000 claims description 4
- 150000002430 hydrocarbons Chemical class 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 239000001272 nitrous oxide Substances 0.000 claims description 4
- 229910000000 metal hydroxide Inorganic materials 0.000 claims description 2
- 150000004692 metal hydroxides Chemical class 0.000 claims description 2
- 229920001206 natural gum Polymers 0.000 claims description 2
- 238000006386 neutralization reaction Methods 0.000 claims description 2
- 239000001488 sodium phosphate 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
- 229910000406 trisodium phosphate Inorganic materials 0.000 claims description 2
- 235000019801 trisodium phosphate Nutrition 0.000 claims description 2
- 239000003945 anionic surfactant Substances 0.000 claims 2
- 239000003093 cationic surfactant Substances 0.000 claims 2
- 229910052909 inorganic silicate Inorganic materials 0.000 claims 1
- 239000013543 active substance Substances 0.000 description 16
- 230000003472 neutralizing effect Effects 0.000 description 9
- 239000002253 acid Substances 0.000 description 8
- 239000012752 auxiliary agent Substances 0.000 description 7
- 206010003504 Aspiration Diseases 0.000 description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 6
- 239000007864 aqueous solution Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000011109 contamination Methods 0.000 description 3
- 238000011049 filling Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 239000012298 atmosphere Substances 0.000 description 2
- 125000002091 cationic group Chemical group 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- -1 for example Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 150000007522 mineralic acids Chemical class 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 208000005189 Embolism Diseases 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
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 229910009973 Ti2O3 Inorganic materials 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 239000002563 ionic surfactant Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- GQUJEMVIKWQAEH-UHFFFAOYSA-N titanium(III) oxide Chemical compound O=[Ti]O[Ti]=O GQUJEMVIKWQAEH-UHFFFAOYSA-N 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/042—Acids
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/0008—Detergent materials or soaps characterised by their shape or physical properties aqueous liquid non soap compositions
- C11D17/003—Colloidal solutions, e.g. gels; Thixotropic solutions or pastes
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/0043—For use with aerosol devices
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/044—Hydroxides or bases
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/12—Water-insoluble compounds
- C11D3/124—Silicon containing, e.g. silica, silex, quartz or glass beads
- C11D3/1246—Silicates, e.g. diatomaceous earth
- C11D3/1253—Layer silicates, e.g. talcum, kaolin, clay, bentonite, smectite, montmorillonite, hectorite or attapulgite
- C11D3/1266—Layer silicates, e.g. talcum, kaolin, clay, bentonite, smectite, montmorillonite, hectorite or attapulgite in liquid compositions
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/22—Carbohydrates or derivatives thereof
- C11D3/222—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
-
- 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
-
- 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
-
- 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
- C23G1/10—Other heavy metals
- C23G1/103—Other heavy metals copper or alloys of copper
-
- 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
- C23G1/10—Other heavy metals
- C23G1/106—Other heavy metals refractory metals
-
- 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
- C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
- C23G1/20—Other heavy metals
- C23G1/205—Other heavy metals refractory metals
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
- C11D2111/10—Objects to be cleaned
- C11D2111/14—Hard surfaces
- C11D2111/16—Metals
Definitions
- the invention concerns a cleaning product to clean titanium surfaces and its application in a procedure to clean titanium surfaces such as titanium facades and panels.
- the nature, composition and thickness of the layer of protective oxides formed on the surface of the titanium depend on environmental conditions. In most aqueous environments, the oxide formed is TiO 2 , although also a mixture of TiO 2 , Ti 2 O 3 and TiO can also be formed. The naturally formed oxide films reach thicknesses of around 10 nm, which are not visible with the naked eye.
- the invention in general, deals with the problem of providing a method to clean titanium surfaces such as the titanium panels used to build facades.
- the solution provided by the invention is based on the development of a cleaning product that includes, separately, (i) a descaling substance, which contains an active agent that acts on the metal surface, composed of a mixture of inorganic acids, and (ii) a fixative, which inhibits and neutralizes the action of the descaling substance, and also in the application of this cleaning product to clean titanium surfaces.
- the invention provides a cleaning product, useful for cleaning titanium surfaces, that includes, separately, (A) a descaling or cleaning substance, from hereon called the descaling substance, which contains an active agent that acts on the metal surface, which is composed of a mixture of inorganic acids, and, (B) a fixative or neutralizer, from hereon referred to as the fixative, which inhibits and neutralizes the action of the descaling substance.
- A a descaling or cleaning substance, from hereon called the descaling substance, which contains an active agent that acts on the metal surface, which is composed of a mixture of inorganic acids
- B a fixative or neutralizer, from hereon referred to as the fixative, which inhibits and neutralizes the action of the descaling substance.
- the cleaning product of the invention corresponds, separately, to:
- A.1) a mixture of nitric acid and hydrofluoric acid
- composition of the descaling substance consists of water, an active agent and auxiliary agents (thickener, surfactant and indicator), as well as a propellant.
- the active agent is comprised of a mixture of nitric and hydrofluoric acid, and acts on the metal surface (Ti), providing the chemical reaction responsible for eliminating the contamination, impurities and oxides. Beneficially, the active agent also has a protective effect to prevent progression of the cleaning chemical reaction on the metal substrate.
- the active agent usually added in the form of an aqueous solution, is present in the descaling substance in a concentration ranging from 1 to 20% in weight relative to the total descaling composition.
- this active agent consists of a mixture of nitric acid and hydrofluoric acid that contains between 1% and 10% in weight of nitric acid compared to the total descaling composition and between 0.1% and 1% in weight of hydrofluoric acid relative to the total descaling composition, and the weight ratio of nitric acid: hydrofluoric acid is 10:1.
- the thickener is introduced in the descaling substance as a stabilizer, also giving it viscosity and selected Theological characteristics.
- a thickening agent a water-soluble organic pseudoplastic thickener can be used, for example, of cellulotic type or a natural gum, for example xanthane gum.
- the thickening agent can be present in the descaling substance in a concentration ranging from 0.1% to 1% in weight relative to the total descaling composition.
- the surfactant alters the surface tension of the descaling substance, favoring the formation of foam, stabilization of this substance and dispersion of its components.
- Potential surfactants include ionic ones (anionic or cationic), in concentrations ranging from 0.1 to 1% in weight compared to the total descaling composition. In one specific application this surfactant is sodium dodecyl sulphate.
- the indicator is introduced in the descaling substance to indicate, by a color change, the time of neutralization of the descaling substance applied on the metallic surface by the fixative substance.
- the indicator is present in the descaling substance at a concentration less than 0.1% in weight relative to the total weight of descaling substance.
- the indicator used is phenolphthalein.
- the water present in the descaling substance can come from the active agent (if the acids present are supplied in aqueous solution) and/or from the auxiliary agents (if these are provided dissolved or suspended in water) and/or from water added to make up the descaling solution.
- the descaling substance can take one of several different forms, for example, it can be a foam, gel or a spray gel. Depending on its form of preparation and packaging, the descaling substance may or may not contain a propellant.
- the propellant is a substance that provides the packaged descaling substance with a high internal pressure that results in its forced ejection onto the metallic surface to be cleaned.
- the propellant can be a liquated or compressed gas.
- Liquated gases are substances that are liquid at ambient temperature, due to the effect of pressure, and that become gaseous at atmospheric pressure. At a specific temperature, the high working pressure is constant and equals the vapor pressure of the liquated propellant. Vaporization of the propellant into the atmosphere favors spray formation or conversion into fine droplets of the non-volatile compounds in solution favoring the formation of microfoams.
- liquated gases include hydrocarbons and hydrofluorocarbons (HFC), which can be used at a concentration ranging from 5% to 20% in weight relative to the total descaling composition.
- the propellant is hydrofluorocarbon identified as HFC 134a (1,1,1,2-tetrafluoroethane).
- Compressed gases are substances injected at appropriate pressures that maintain the excess pressure on the surface of the descaling substance in the container, forcing this to the exterior in the same way as an embolus that acts on the surface of a liquid, especially in the case of insoluble gases.
- the gas occupies an increasingly larger volume, its initial pressure is reduced and, therefore, the initial working conditions change.
- Nitrogen, carbon dioxide, nitrous oxide and air can be used in appropriate amounts at the required working pressure.
- this descaling compound depends on the form or type of viscous vehicle concerned.
- this descaling compound can take the form of:
- the foam and spray gel products are prepared in pressurized containers resistant to acid media, from the following components [active agent, auxiliary agents (in gel form or as an aqueous mixture of thickener, surfactant and indicator), water and gas propellant, in the proportions appropriate to satisfy the percentages defined for the final desired product].
- active agent active agent
- auxiliary agents in gel form or as an aqueous mixture of thickener, surfactant and indicator
- water and gas propellant in the proportions appropriate to satisfy the percentages defined for the final desired product.
- application of the descaling substance is done, for example, by spraying with a gun, with a maximum interval of 3 hours between filling the container and application of the product, preferably less than 1 hour.
- the gel type product is prepared in acid-resistant containers from the following components [active agent, gel or aqueous mixture of auxiliary agents (thickener, surfactant and indicator) and water, in appropriate proportions to satisfy the percentages defined for the final desired product].
- active agent gel or aqueous mixture of auxiliary agents (thickener, surfactant and indicator) and water, in appropriate proportions to satisfy the percentages defined for the final desired product.
- the fixative is comprised of a neutralizing active agent that stops the action of the descaling agent, neutralizing it, some auxiliary agents (thickener and surfactant), water and a propellant.
- the neutralizing active agent inhibits the action of the acid present in the descaling substance when the fixative is applied to the metallic surface thus reducing the likelihood of a too aggressive attack of the acid on the metallic surface, neutralizing the cleaning product and favoring its collection and elimination.
- a neutralizing active agent a base can be used, generally in the form of an aqueous solution, capable of neutralizing the acid present in the descaling substance.
- this base can be an alkaline metal hydroxide, for example, sodium hydroxide, in a concentration of between 1% and 20% in weight relative to the total fixative composition, or trisodium phosphate, in a concentration of between 1% and the maximum permitted concentration relative to the fixative.
- the thickener has the same function as mentioned previously relative to the descaling substance.
- a thickening agent preferentially, inorganic products with a silicate base are used, for example, sepiolite, at a concentration ranging from 1 to 8% in weight relative to the total fixative composition, since this type of thickener can also neutralize the hydrofluoric acid of the descaling substance.
- the surfactant fulfils the same function as that mentioned for the descaling substance.
- the surfactant present in the fixative can correspond to ionic surfactants (anionic or cationic), that can be the same or different to those used in the descaling substance.
- the surfactant can be present in the fixative in a concentration ranging from 0.1 to 1% in weight relative to the total fixative composition.
- the water present in the fixative can either come from the neutralizing active agent (if the base is supplied in aqueous solution) and/or from auxiliary agents (in the case that these are supplied dissolved or suspended in water) and/or of water that is incorporated to make up the volume of the fixative.
- the propellant which can be a liquated gas or a compressed gas, fulfils the same function as that mentioned previously relative to the descaling substance.
- the propellant present in the fixative compound can be the same as or different to that used in the descaling substance (if this contains propellant).
- the propellant can be present in the fixative substance in a concentration ranging from 5 to 20% in weight relative to the total fixative composition when the propellant is a liquated gas, for example, a hydrocarbon or a HFC, such as HFC 134a.
- a compressed gas for example, nitrogen, carbon dioxide, nitrous oxide or air
- this propellant is used, as mentioned previously, in the appropriate quantity at the working temperature required.
- the fixative can take any suitable form of presentation such as foam (FF) when the propellant is a liquated gas or in the form of spray gel (SGF) when the propellant is a compressed gas.
- FF foam
- SGF spray gel
- Both products are kept in pressurized containers resistant to alkaline media, and are composed of the following components [neutralizing active agents, auxiliary agents (in the form of gel or an aqueous mixture of thickener and surfactant) in proportions that satisfy the percentages defined for the final desired product and propellant gas].
- Application of the fixative substance is done, for example, by spraying with a gun, with a maximum interval between filling the container and application of the product of 3 hours, but preferably less than 1 hour.
- the invention provides a cleaning product, useful for cleaning titanium surfaces, that also has, separately, the characteristics listed in Table 1.
- TABLE 1 Cleaning Product A) A descaling compound that contains: A mixture of: Nitric acid (HNO 3 ) 1-10% Hydrofluoric acid (HF) 0.1-1% In a weight ratio HNO 3 :HF of 10:1 A thickening agent 0.1-1% A surfactant 0.1-1% An indicator ⁇ 0.1% A propellant (liquated gas) 5-20% Water (as required for) 100% Where the percentages are percentages in weight relative to the total descaling composition; and B) a fixative substance containing: A base 5-15% A thickening agent 2-8% A surfactant 0.1-1% A propellant (liquated gas) 5-20% Water (as required for) 100% Where the percentages are percentages in weight relative to the total fixative composition.
- the composition of which is recorded in Table 1 in the descaling composition the active agent is a mixture of 60% HNO 3 and 48% HF, the thickening agent is xanthane gum, the surfactant is sodium dodecyl sulphate, the indicator is phenolphthalein and the propellant (liquated gas) is HFC 134a.
- the composition of which is shown in Table 1 in the fixative composition, the base is sodium hydroxide, the thickening agent is sepiolite, the surfactant is sodium dodecyl sulfate and the propellant (liquated gas) is HFC 134a.
- the cleaning product of the invention is useful for cleaning titanium surfaces, especially, titanium building facades. Therefore, the invention provides a method to clean titanium surfaces that consists of using the cleaning product of this invention. More specifically, this method corresponds to the following stages of:
- Stage a) or the descaling stage consists in applying the descaling substance of the cleaning product of the invention, homogeneously over the whole titanium surface to be cleaned, which is preferentially dry.
- the titanium surface is dried using instruments that do not cause mechanical damage of the metallic surface.
- this is administered in one way or another.
- foam descaling substances (FD) and spray gel descaling substances (SGD) are applied using the appropriate spray gun, while the gel descaling substance (GD) is applied with a sponge trowel taking care not to cause mechanical damage of the metallic surface.
- FD foam descaling substances
- SGD spray gel descaling substances
- Stage b) or the fixative stage consists in applying the fixative of the cleaning product of the invention to the metallic surface previously treated with the descaling substance in stage a) ensuring that the surface is completely and homogeneously covered.
- the fixative as foam (FF) and spray gel (SGF) are applied using an appropriate spray gun. After applying the fixative, this is left to act for 30 seconds to 5 minutes before proceeding to the following stage, confirming beforehand that the active neutralizing agent of the fixative substance has neutralized the acid present in the fixative, indicated by the color change of the indicator, or, alternatively, by the use of pH paper indicator strips.
- stage c) or the aspiration stage is carried out, in which the previously treated titanium surfaces are aspirated to remove the cleaning products from this previously treated surface. This aspiration is applied carefully using the appropriate equipment to avoid producing chemical or mechanical damage to the metallic surface.
- step d) or the rinsing is carried out, in which a water jet at a temperature between 5 and 30° C. is applied to eliminate the remains of products used in previous stages.
- the titanium surface to be cleaned is a titanium building facade or titanium panels to be used for the construction of facades.
- Both the descaling substance and the fixative are prepared and packaged in foam form by incorporating different compounds in the desired amounts.
- Titanium panels will be cleaned using cleaning products prepared according to Example 1.1. This will be done by following the protocol described below:
- Fixing the fixative of the cleaning product used in each case is applied to the titanium panels previously treated with the descaling substance using a spray gun and left to act for a period ranging from 30 seconds to 2 minutes;
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Abstract
Description
- This is a continuation of International Application PCT/ES01/00401 filed Oct. 24, 2001.
- The invention concerns a cleaning product to clean titanium surfaces and its application in a procedure to clean titanium surfaces such as titanium facades and panels.
- The excellent resistance of titanium and its alloys to corrosion is due to the formation of a protective film of oxides, which is continuous, stable and adheres strongly to the surface. Owing to the high affinity of titanium for oxygen, this film of oxides forms spontaneously as soon as a recent cut of the material is exposed to the atmosphere.
- The nature, composition and thickness of the layer of protective oxides formed on the surface of the titanium depend on environmental conditions. In most aqueous environments, the oxide formed is TiO2, although also a mixture of TiO2, Ti2O3 and TiO can also be formed. The naturally formed oxide films reach thicknesses of around 10 nm, which are not visible with the naked eye.
- Some factors can alter the characteristics and composition of the TiO2 layer, including the temperature or affinity of titanium for certain gases. Also, the presence of contamination or dirt on the metal surface can produce discontinuities in the surface that can give rise to severe localized corrosion processes. In the case of titanium panels used in construction and exposed to aggressive environmental, industrial and urban atmospheres, this type of phenomenon, which alters the surface characteristics of the panels and their composition, has been observed.
- Cleaning and surface passivation methods used in normal conditions to eliminate this type of oxide and surface contamination require immersion processes that use different types of solutions. These include acid pickling, electropolishing or mechanical processes. These methods are not viable in panels used for construction purposes owing to their high cost and because they can alter the surface characteristics of the original panels.
- There is, therefore, the need for a new method to clean surfaces containing titanium, such as the titanium panels used in construction, that can help to overcome all or most of the problems described here.
- The invention, in general, deals with the problem of providing a method to clean titanium surfaces such as the titanium panels used to build facades.
- The solution provided by the invention is based on the development of a cleaning product that includes, separately, (i) a descaling substance, which contains an active agent that acts on the metal surface, composed of a mixture of inorganic acids, and (ii) a fixative, which inhibits and neutralizes the action of the descaling substance, and also in the application of this cleaning product to clean titanium surfaces.
- The application of the cleaning product and the cleaning method provided by this invention permit easy and precise cleaning of the titanium surface without damaging it.
- This cleaning product and its application to clean titanium surfaces are both the objectives of this invention.
- The invention provides a cleaning product, useful for cleaning titanium surfaces, that includes, separately, (A) a descaling or cleaning substance, from hereon called the descaling substance, which contains an active agent that acts on the metal surface, which is composed of a mixture of inorganic acids, and, (B) a fixative or neutralizer, from hereon referred to as the fixative, which inhibits and neutralizes the action of the descaling substance.
- More specifically, the cleaning product of the invention corresponds, separately, to:
- A) a descaling substance comprised of:
- A.1) a mixture of nitric acid and hydrofluoric acid;
- A.2) a thickening agent;
- A.3) a surfactant;
- A.4) an indicator;
- A.5) water; and, optionally,
- A.6) a propellant; and
- B) a fixative substance that contains:
- B.1) an alkaline aqueous solution;
- B.2) a thickener;
- B.3) a surfactant;
- B.4) water; and
- B.5) a propellant.
- A. Composition of Descaling Substance
- The composition of the descaling substance consists of water, an active agent and auxiliary agents (thickener, surfactant and indicator), as well as a propellant.
- The active agent is comprised of a mixture of nitric and hydrofluoric acid, and acts on the metal surface (Ti), providing the chemical reaction responsible for eliminating the contamination, impurities and oxides. Beneficially, the active agent also has a protective effect to prevent progression of the cleaning chemical reaction on the metal substrate. The active agent, usually added in the form of an aqueous solution, is present in the descaling substance in a concentration ranging from 1 to 20% in weight relative to the total descaling composition. In a specific application, this active agent consists of a mixture of nitric acid and hydrofluoric acid that contains between 1% and 10% in weight of nitric acid compared to the total descaling composition and between 0.1% and 1% in weight of hydrofluoric acid relative to the total descaling composition, and the weight ratio of nitric acid: hydrofluoric acid is 10:1.
- The thickener is introduced in the descaling substance as a stabilizer, also giving it viscosity and selected Theological characteristics. As a thickening agent, a water-soluble organic pseudoplastic thickener can be used, for example, of cellulotic type or a natural gum, for example xanthane gum. The thickening agent can be present in the descaling substance in a concentration ranging from 0.1% to 1% in weight relative to the total descaling composition.
- The surfactant alters the surface tension of the descaling substance, favoring the formation of foam, stabilization of this substance and dispersion of its components. Potential surfactants include ionic ones (anionic or cationic), in concentrations ranging from 0.1 to 1% in weight compared to the total descaling composition. In one specific application this surfactant is sodium dodecyl sulphate.
- The indicator is introduced in the descaling substance to indicate, by a color change, the time of neutralization of the descaling substance applied on the metallic surface by the fixative substance. The indicator is present in the descaling substance at a concentration less than 0.1% in weight relative to the total weight of descaling substance. In one application the indicator used is phenolphthalein.
- The water present in the descaling substance can come from the active agent (if the acids present are supplied in aqueous solution) and/or from the auxiliary agents (if these are provided dissolved or suspended in water) and/or from water added to make up the descaling solution.
- The descaling substance can take one of several different forms, for example, it can be a foam, gel or a spray gel. Depending on its form of preparation and packaging, the descaling substance may or may not contain a propellant.
- The propellant is a substance that provides the packaged descaling substance with a high internal pressure that results in its forced ejection onto the metallic surface to be cleaned. The propellant can be a liquated or compressed gas.
- Liquated gases are substances that are liquid at ambient temperature, due to the effect of pressure, and that become gaseous at atmospheric pressure. At a specific temperature, the high working pressure is constant and equals the vapor pressure of the liquated propellant. Vaporization of the propellant into the atmosphere favors spray formation or conversion into fine droplets of the non-volatile compounds in solution favoring the formation of microfoams. Examples of liquated gases include hydrocarbons and hydrofluorocarbons (HFC), which can be used at a concentration ranging from 5% to 20% in weight relative to the total descaling composition. In one specific application, the propellant is hydrofluorocarbon identified as HFC 134a (1,1,1,2-tetrafluoroethane).
- Compressed gases are substances injected at appropriate pressures that maintain the excess pressure on the surface of the descaling substance in the container, forcing this to the exterior in the same way as an embolus that acts on the surface of a liquid, especially in the case of insoluble gases. As the contents are discharged, the gas occupies an increasingly larger volume, its initial pressure is reduced and, therefore, the initial working conditions change. Nitrogen, carbon dioxide, nitrous oxide and air can be used in appropriate amounts at the required working pressure.
- As mentioned previously, the preparation and packaging of the descaling compound depends on the form or type of viscous vehicle concerned. As an example, this descaling compound can take the form of:
- a) foam (FD), when the propellant used is a liquated gas;
- b) spray gel (SPD), when the propellant used is a compressed gas; or
- c) gel (GD), when it does not contain propellant.
- The foam and spray gel products are prepared in pressurized containers resistant to acid media, from the following components [active agent, auxiliary agents (in gel form or as an aqueous mixture of thickener, surfactant and indicator), water and gas propellant, in the proportions appropriate to satisfy the percentages defined for the final desired product]. In this case, application of the descaling substance is done, for example, by spraying with a gun, with a maximum interval of 3 hours between filling the container and application of the product, preferably less than 1 hour.
- The gel type product is prepared in acid-resistant containers from the following components [active agent, gel or aqueous mixture of auxiliary agents (thickener, surfactant and indicator) and water, in appropriate proportions to satisfy the percentages defined for the final desired product]. In this case, application of the product is done, for example by sponge trowel, with a maximum time interval between filling the container and using the product of 3 hours, and preferably under 1 hour.
- B. Fixative Substance
- The fixative is comprised of a neutralizing active agent that stops the action of the descaling agent, neutralizing it, some auxiliary agents (thickener and surfactant), water and a propellant.
- The neutralizing active agent inhibits the action of the acid present in the descaling substance when the fixative is applied to the metallic surface thus reducing the likelihood of a too aggressive attack of the acid on the metallic surface, neutralizing the cleaning product and favoring its collection and elimination. As a neutralizing active agent, a base can be used, generally in the form of an aqueous solution, capable of neutralizing the acid present in the descaling substance. As an example, this base can be an alkaline metal hydroxide, for example, sodium hydroxide, in a concentration of between 1% and 20% in weight relative to the total fixative composition, or trisodium phosphate, in a concentration of between 1% and the maximum permitted concentration relative to the fixative.
- The thickener has the same function as mentioned previously relative to the descaling substance. In this case, as a thickening agent, preferentially, inorganic products with a silicate base are used, for example, sepiolite, at a concentration ranging from 1 to 8% in weight relative to the total fixative composition, since this type of thickener can also neutralize the hydrofluoric acid of the descaling substance.
- The surfactant fulfils the same function as that mentioned for the descaling substance. The surfactant present in the fixative can correspond to ionic surfactants (anionic or cationic), that can be the same or different to those used in the descaling substance. The surfactant can be present in the fixative in a concentration ranging from 0.1 to 1% in weight relative to the total fixative composition.
- The water present in the fixative can either come from the neutralizing active agent (if the base is supplied in aqueous solution) and/or from auxiliary agents (in the case that these are supplied dissolved or suspended in water) and/or of water that is incorporated to make up the volume of the fixative.
- The propellant, which can be a liquated gas or a compressed gas, fulfils the same function as that mentioned previously relative to the descaling substance. The propellant present in the fixative compound can be the same as or different to that used in the descaling substance (if this contains propellant). The propellant can be present in the fixative substance in a concentration ranging from 5 to 20% in weight relative to the total fixative composition when the propellant is a liquated gas, for example, a hydrocarbon or a HFC, such as HFC 134a. Alternatively, when the propellant is a compressed gas, for example, nitrogen, carbon dioxide, nitrous oxide or air, this propellant is used, as mentioned previously, in the appropriate quantity at the working temperature required.
- The fixative can take any suitable form of presentation such as foam (FF) when the propellant is a liquated gas or in the form of spray gel (SGF) when the propellant is a compressed gas.
- Both products (foam and spray gel) are kept in pressurized containers resistant to alkaline media, and are composed of the following components [neutralizing active agents, auxiliary agents (in the form of gel or an aqueous mixture of thickener and surfactant) in proportions that satisfy the percentages defined for the final desired product and propellant gas]. Application of the fixative substance is done, for example, by spraying with a gun, with a maximum interval between filling the container and application of the product of 3 hours, but preferably less than 1 hour.
- In one specific application, the invention provides a cleaning product, useful for cleaning titanium surfaces, that also has, separately, the characteristics listed in Table 1.
TABLE 1 Cleaning Product A) A descaling compound that contains: A mixture of: Nitric acid (HNO3) 1-10% Hydrofluoric acid (HF) 0.1-1% In a weight ratio HNO3:HF of 10:1 A thickening agent 0.1-1% A surfactant 0.1-1% An indicator <0.1% A propellant (liquated gas) 5-20% Water (as required for) 100% Where the percentages are percentages in weight relative to the total descaling composition; and B) a fixative substance containing: A base 5-15% A thickening agent 2-8% A surfactant 0.1-1% A propellant (liquated gas) 5-20% Water (as required for) 100% Where the percentages are percentages in weight relative to the total fixative composition. - Where the percentages are percentages in weight relative to the total fixative composition.
- In one specific application of the cleaning product the composition of which is recorded in Table 1, in the descaling composition the active agent is a mixture of 60% HNO3 and 48% HF, the thickening agent is xanthane gum, the surfactant is sodium dodecyl sulphate, the indicator is phenolphthalein and the propellant (liquated gas) is HFC 134a.
- Similarly, in one specific application of the cleaning product the composition of which is shown in Table 1, in the fixative composition, the base is sodium hydroxide, the thickening agent is sepiolite, the surfactant is sodium dodecyl sulfate and the propellant (liquated gas) is HFC 134a.
- The cleaning product of the invention is useful for cleaning titanium surfaces, especially, titanium building facades. Therefore, the invention provides a method to clean titanium surfaces that consists of using the cleaning product of this invention. More specifically, this method corresponds to the following stages of:
- a) applying the descaling substance of the cleaning product of the invention to the titanium surface to be cleaned and letting it act for a period of time;
- b) applying the fixative composition of the cleaning product of the invention to the titanium surface previously treated with this descaling substance in stage a), and leaving it to act for a period of time;
- c) aspiration of the surfaces previously treated with these descaling and fixative compounds in stages a) and b); and
- d) rinsing the treated titanium surface after completing stage c).
- Stage a) or the descaling stage consists in applying the descaling substance of the cleaning product of the invention, homogeneously over the whole titanium surface to be cleaned, which is preferentially dry. Where necessary, the titanium surface is dried using instruments that do not cause mechanical damage of the metallic surface. Depending on the form of presentation of the descaling substance, this is administered in one way or another. For example, foam descaling substances (FD) and spray gel descaling substances (SGD) are applied using the appropriate spray gun, while the gel descaling substance (GD) is applied with a sponge trowel taking care not to cause mechanical damage of the metallic surface. After applying the descaling substance to the metallic surface this should be left to act for a period ranging from 15 seconds to 10 minutes before applying the fixative.
- Stage b) or the fixative stage consists in applying the fixative of the cleaning product of the invention to the metallic surface previously treated with the descaling substance in stage a) ensuring that the surface is completely and homogeneously covered. The fixative as foam (FF) and spray gel (SGF) are applied using an appropriate spray gun. After applying the fixative, this is left to act for 30 seconds to 5 minutes before proceeding to the following stage, confirming beforehand that the active neutralizing agent of the fixative substance has neutralized the acid present in the fixative, indicated by the color change of the indicator, or, alternatively, by the use of pH paper indicator strips.
- After the fixation stage, stage c) or the aspiration stage is carried out, in which the previously treated titanium surfaces are aspirated to remove the cleaning products from this previously treated surface. This aspiration is applied carefully using the appropriate equipment to avoid producing chemical or mechanical damage to the metallic surface.
- Finally, after aspiration, step d) or the rinsing is carried out, in which a water jet at a temperature between 5 and 30° C. is applied to eliminate the remains of products used in previous stages.
- In one specific application, the titanium surface to be cleaned is a titanium building facade or titanium panels to be used for the construction of facades.
- The following example illustrates application of the invention and should not in any way be considered to limit its scope of application.
- Several cleaning products were prepared with formulations included among the compositions recorded in Table 2.
TABLE 2 Composition of cleaning products of the invention A) Descaling substance composed of a mixture of: HNO3 60% 1-10% HF 48% 0.1-1% Weight ratio HNO3:HF of 10:1 xanthane gum 0.1-1% sodium docedyl sulphate 0.1-1% phenolphthalein <0.1% HFC 134a (liquated gas) 5-20% Water (as required for) 100% Where the percentages are percentages in weight relative to the total in the descaling compound; and B) Fixative containing: NaOH 5-15% sepiolite 2-8% Sodium dodecyl sulphate 0.1-1% HFC 134a (liquated gas) 5-20% Water (as required for) 100% Where the percentages are percentages in weight relative to the total amount of fixative. - Where the percentages are percentages in weight relative to the total amount of fixative.
- Both the descaling substance and the fixative are prepared and packaged in foam form by incorporating different compounds in the desired amounts.
- Titanium panels will be cleaned using cleaning products prepared according to Example 1.1. This will be done by following the protocol described below:
- a) Descaling: the descaling substance of the cleaning product used in each case is applied by spraying the surface of the titanium panels using a spray gun and leaving the product to act for a period ranging from 30 seconds to 3 minutes;
- b) Fixing: the fixative of the cleaning product used in each case is applied to the titanium panels previously treated with the descaling substance using a spray gun and left to act for a period ranging from 30 seconds to 2 minutes;
- c) Aspiration: the products formed and the remains left on the previously treated titanium panels are aspirated with the help of an aspiration system that is neither chemically or mechanically aggressive; and
- d) Rinsing: with water jets at a temperature between 5 and 30° C., to eliminate the remains of products from previous stages.
- The cleaning products tested showed their efficacy at cleaning the treated titanium panels.
Claims (39)
Applications Claiming Priority (1)
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PCT/ES2001/000401 WO2003035933A1 (en) | 2001-10-24 | 2001-10-24 | Product and method for cleaning titanium surfaces |
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PCT/ES2001/000401 Continuation WO2003035933A1 (en) | 2001-10-24 | 2001-10-24 | Product and method for cleaning titanium surfaces |
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Cited By (6)
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US20060112972A1 (en) * | 2004-11-30 | 2006-06-01 | Ecolab Inc. | Methods and compositions for removing metal oxides |
US20060191076A1 (en) * | 2003-03-05 | 2006-08-31 | Bonfa Marcio Henrique P | Method of treating a textile using a colour changing form |
US20060234516A1 (en) * | 2005-04-13 | 2006-10-19 | Hong Eun S | Composition for cleaning semiconductor device and method for cleaning semiconductor device using the same |
US10000728B2 (en) | 2015-07-17 | 2018-06-19 | S. C. Johnson & Son, Inc. | Cleaning composition with propellant |
US10358625B2 (en) | 2015-07-17 | 2019-07-23 | S. C. Johnson & Son, Inc. | Non-corrosive cleaning composition |
US11339353B2 (en) | 2015-12-07 | 2022-05-24 | S.C. Johnson & Son, Inc. | Acidic hard surface cleaner with glycine betaine ester |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
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JP4159334B2 (en) | 2002-09-30 | 2008-10-01 | 新日本製鐵株式会社 | Discoloration removal cleaning agent and discoloration removal cleaning method for titanium and titanium alloy building materials |
US9133714B2 (en) * | 2006-11-01 | 2015-09-15 | United Technologies Corporation | Titanium foil as a structural heater element |
US20080102292A1 (en) * | 2006-11-01 | 2008-05-01 | United Technologies Corporation | Surface treatment for a thin titanium foil |
JP2008144206A (en) * | 2006-12-07 | 2008-06-26 | Kobe Steel Ltd | Acid pickling liquid for titanium or titanium alloy, and acid pickling method using the same |
FR2931711B1 (en) * | 2008-06-02 | 2010-08-27 | Victor Seita | PIPE CLEANER WITH VISUAL TEMPERATURE INDICATOR AND RINSING INDICATOR |
FR2931836B1 (en) | 2008-06-02 | 2011-01-21 | Victor Seita | ACID CLEANER CLEANER WITH VISUAL INDICATOR AND RINSE INDICATOR |
GB0814101D0 (en) * | 2008-08-01 | 2008-09-10 | Reckitt Benckiser Uk Ltd | Composition |
CZ303547B6 (en) * | 2009-03-10 | 2012-11-28 | Wetter@Antonín | Formulation for removing corrosion products from metallic surfaces |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3844859A (en) * | 1969-12-16 | 1974-10-29 | Boeing Co | Titanium chemical milling etchant |
US4683008A (en) * | 1985-07-12 | 1987-07-28 | Sparkle Wash, Inc. | Method for cleaning hard surfaces |
US4874434A (en) * | 1988-05-16 | 1989-10-17 | Kerr-Mcgee Chemical Corporation | Method of treating a titanium structure |
US4971631A (en) * | 1988-03-07 | 1990-11-20 | Bernard Lietaer | Compositions and methods for cleaning hard surfaces |
US5217569A (en) * | 1991-01-07 | 1993-06-08 | United Technologies Corporation | Chemical milling solution for reduced hydrogen absorption |
US5364551A (en) * | 1993-09-17 | 1994-11-15 | Ecolab Inc. | Reduced misting oven cleaner |
US6046117A (en) * | 1997-05-22 | 2000-04-04 | Wacker Siltronic Gesellschaft Fur Halbleitermaterialien Ag | Process for etching semiconductor wafers |
US6258242B1 (en) * | 1999-02-08 | 2001-07-10 | Aerospatiale Matra | Process for surface preparation and polyaniline deposition for the absorption of light |
US6274027B1 (en) * | 1999-07-06 | 2001-08-14 | Sumitomo Metal Industries, Ltd | Method of descaling titanium material and descaled titanium material |
US6341612B1 (en) * | 2000-03-09 | 2002-01-29 | Steris Inc | Two compartment container for neutralizing used cleaning solutions |
US6770150B1 (en) * | 2000-03-09 | 2004-08-03 | Steris Inc. | Process for removing deposits from enclosed chambers |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2795433B1 (en) * | 1999-06-25 | 2001-08-31 | Org Europeene De Rech | BATH COMPOSITION FOR ELECTROLYTIC POLISHING OF TITANIUM, AND METHOD OF USING SAME |
-
2001
- 2001-10-24 ES ES01976326T patent/ES2294034T3/en not_active Expired - Lifetime
- 2001-10-24 WO PCT/ES2001/000401 patent/WO2003035933A1/en active IP Right Grant
- 2001-10-24 EP EP01976326A patent/EP1447461B1/en not_active Expired - Lifetime
- 2001-10-24 JP JP2003538427A patent/JP2005506452A/en active Pending
- 2001-10-24 BR BR0117162-3A patent/BR0117162A/en not_active IP Right Cessation
- 2001-10-24 AT AT01976326T patent/ATE380891T1/en not_active IP Right Cessation
- 2001-10-24 CA CA002463954A patent/CA2463954A1/en not_active Abandoned
- 2001-10-24 DE DE60131908T patent/DE60131908D1/en not_active Expired - Lifetime
-
2004
- 2004-04-22 US US10/830,564 patent/US20040221870A1/en not_active Abandoned
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3844859A (en) * | 1969-12-16 | 1974-10-29 | Boeing Co | Titanium chemical milling etchant |
US4683008A (en) * | 1985-07-12 | 1987-07-28 | Sparkle Wash, Inc. | Method for cleaning hard surfaces |
US4971631A (en) * | 1988-03-07 | 1990-11-20 | Bernard Lietaer | Compositions and methods for cleaning hard surfaces |
US4874434A (en) * | 1988-05-16 | 1989-10-17 | Kerr-Mcgee Chemical Corporation | Method of treating a titanium structure |
US5217569A (en) * | 1991-01-07 | 1993-06-08 | United Technologies Corporation | Chemical milling solution for reduced hydrogen absorption |
US5364551A (en) * | 1993-09-17 | 1994-11-15 | Ecolab Inc. | Reduced misting oven cleaner |
US6046117A (en) * | 1997-05-22 | 2000-04-04 | Wacker Siltronic Gesellschaft Fur Halbleitermaterialien Ag | Process for etching semiconductor wafers |
US6258242B1 (en) * | 1999-02-08 | 2001-07-10 | Aerospatiale Matra | Process for surface preparation and polyaniline deposition for the absorption of light |
US6274027B1 (en) * | 1999-07-06 | 2001-08-14 | Sumitomo Metal Industries, Ltd | Method of descaling titanium material and descaled titanium material |
US6341612B1 (en) * | 2000-03-09 | 2002-01-29 | Steris Inc | Two compartment container for neutralizing used cleaning solutions |
US6770150B1 (en) * | 2000-03-09 | 2004-08-03 | Steris Inc. | Process for removing deposits from enclosed chambers |
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US20060112972A1 (en) * | 2004-11-30 | 2006-06-01 | Ecolab Inc. | Methods and compositions for removing metal oxides |
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US20060234516A1 (en) * | 2005-04-13 | 2006-10-19 | Hong Eun S | Composition for cleaning semiconductor device and method for cleaning semiconductor device using the same |
US10000728B2 (en) | 2015-07-17 | 2018-06-19 | S. C. Johnson & Son, Inc. | Cleaning composition with propellant |
US10358625B2 (en) | 2015-07-17 | 2019-07-23 | S. C. Johnson & Son, Inc. | Non-corrosive cleaning composition |
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US11339353B2 (en) | 2015-12-07 | 2022-05-24 | S.C. Johnson & Son, Inc. | Acidic hard surface cleaner with glycine betaine ester |
Also Published As
Publication number | Publication date |
---|---|
BR0117162A (en) | 2004-09-08 |
ES2294034T3 (en) | 2008-04-01 |
EP1447461A1 (en) | 2004-08-18 |
CA2463954A1 (en) | 2003-05-01 |
ATE380891T1 (en) | 2007-12-15 |
JP2005506452A (en) | 2005-03-03 |
WO2003035933A1 (en) | 2003-05-01 |
DE60131908D1 (en) | 2008-01-24 |
EP1447461B1 (en) | 2007-12-12 |
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