WO2003008529A1 - Procede de traitement d'une surface par un gel de traitement, et gel de traitement - Google Patents
Procede de traitement d'une surface par un gel de traitement, et gel de traitement Download PDFInfo
- Publication number
- WO2003008529A1 WO2003008529A1 PCT/FR2002/002509 FR0202509W WO03008529A1 WO 2003008529 A1 WO2003008529 A1 WO 2003008529A1 FR 0202509 W FR0202509 W FR 0202509W WO 03008529 A1 WO03008529 A1 WO 03008529A1
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- WO
- WIPO (PCT)
- Prior art keywords
- gel
- treatment
- weight
- silica
- mixture
- Prior art date
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Classifications
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/001—Decontamination of contaminated objects, apparatus, clothes, food; Preventing contamination thereof
- G21F9/002—Decontamination of the surface of objects with chemical or electrochemical processes
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- 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
- 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
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/046—Salts
-
- 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
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- 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
- C23G1/025—Cleaning or pickling metallic material with solutions or molten salts with acid solutions acidic pickling pastes
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- 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
Definitions
- PROCESS FOR TREATING A SURFACE WITH A TREATMENT GEL, AND TREATMENT GEL PROCESS FOR TREATING A SURFACE WITH A TREATMENT GEL, AND TREATMENT GEL.
- the present invention relates to a method for treating a surface with a gel, as well as to a treatment gel which can be used in such a method.
- the treatment can be for example a decontamination treatment, for example radioactive or organic, a pickling treatment or a degreasing treatment of a surface.
- Rinsing has the drawback of generating liquid effluents of the order of 10 L of water per kg of gel used. These decontamination effluents when it comes to radioactive decontamination are treated in existing nuclear material processing facilities. This therefore requires in-depth studies on the management of these effluents and their impact on the treatment circuits of the installations. Furthermore, such gels which must be rinsed cannot be used to treat installation surfaces which must not be flooded.
- the object of the present invention is precisely to provide a method for treating a surface with a gel, as well as a treatment gel which can be used in such a method, which overcomes the aforementioned drawbacks of the prior art.
- the treatment process comprises in this order the following stages: - application of the treatment gel on the surface to be treated, maintenance of the treatment gel on the surface to be treated at a temperature and relative humidity such as the dry gel and that it has the time to treat the surface before forming a dry and solid residue, and removal of the dry and solid residue from the treated surface.
- the gel dries while fracturing.
- the treatment gel advantageously consists of a colloidal solution comprising:
- the concentrations are expressed in moles per liter of gel in the present text.
- the inorganic, or inorganic viscosifying agent can, for example, be based on silica or a mixture of silicas.
- the silica is at a concentration of 5 to 15% by weight of the gel to ensure drying of the gel at a temperature between 20 ° C and 30 ° C and relative humidity between 20 and 70% by average in 2 to 5 hours.
- This silica can be hydrophilic, hydrophobic, acid or basic such as silica Tixosil 73 (trademark) sold by the company Rhodia.
- AEROSIL 380 silica (trademark) with a specific surface of 380 m 2 / g which offers the maximum viscosity properties for a minimum mineral load.
- the silica used can also be a so-called precipitated silica obtained for example by the wet method by mixing a solution of sodium silicate and an acid.
- the preferred precipitated silicas are sold by DEGUSSA under the name of SIPERNAT 22 LS and FK 310 (trademarks).
- the viscosity agent is a mixture of the two types of aforementioned silicas, pyrogenic and precipitated.
- the mixture of silicas is preferably at a concentration of 5 to 10% by weight of the gel to ensure drying of the gel at a temperature between 20 ° C and 30 ° C and relative humidity between 20 and 70% by average in 2 to 5 hours. Indeed, such a mixture unexpectedly influences the drying of the gel and the particle size of the residue obtained.
- the dry gel is in the form of particles of controlled size ranging from 0.1 to 2 mm thanks in particular to the aforementioned compositions of the present invention.
- the mineral viscous agent can also, for example, be based on alumina Al 2 0 3 , obtained for example by hydrolysis at high temperature.
- the alumina is at a concentration of 10 to 25% by weight in the gel to ensure drying of the gel at a temperature between 20 ° C and 30 ° C and relative humidity between 20 and 70% in 2 to 3 hours.
- the active treatment agent can be an acid or a mixture of acids, preferably chosen from hydrochloric acid, nitric acid, sulfuric acid and phosphoric acid.
- the acid is preferably present at a concentration of 0.1 to 7 mol / l, more preferably from 0.5 to 4 mol / l, to ensure drying of the gel at a temperature between 20 ° C. and 30 ° C. and relative humidity between 20 and 70% on average in 2 to 5 hours.
- the inorganic viscous agent is preferably silica or a mixture of silicas.
- the treatment gel according to the invention may also contain, as active treatment agent, a base, preferably an inorganic base, preferably chosen from soda, potash or their mixtures.
- the base is advantageously present at a concentration of less than 2 mol / l, preferably between 0.5 and 2 mol / l, more preferably between 1 and 2 mol / 1 to ensure drying of the gel at a temperature between 20 ° C. and 30 ° C and relative humidity between 20 and 70% on average in 2 to 5 hours
- the inorganic viscosity agent is preferably alumina.
- the gel of the invention may contain an oxidizing agent which has a normal oxidation-reduction potential greater than 1400 mV in a strong acid medium, that is to say an oxidizing power greater than that of permanganate.
- an oxidizing agent which has a normal oxidation-reduction potential greater than 1400 mV in a strong acid medium, that is to say an oxidizing power greater than that of permanganate.
- oxidizing agents can be Ce (IV), Co (III) and Ag (II).
- Oxidizing agents are generally associated with a mineral acid, such as preferably nitric acid at a moderate concentration of less than 2 mol / 1 and allowing rapid drying of the gel.
- Cerium is generally introduced in the form of electrified cerium (IV) nitrate Ce (N0 3 ) 4 or 1 hexanitrato diammonium cerate (NH 4 ) 2 Ce (N0 3 ) 6 .
- a typical example of an oxidizing decontamination gel according to the invention consists of a colloidal solution comprising 0.1 to 0.5 mol / l of Ce (NO 3 ) 4 or (NH 4 ) 2 Ce (NO 3 ) 6 / from 0.5 to 2 mol / 1 of nitric acid and from 5 to 15% by weight of silica.
- the gels of the invention can easily be prepared, at ambient temperature, by adding to an aqueous solution the mineral gelling agent which preferably has a high specific surface, for example greater than 100 m 2 / g.
- a viscosity at least equal to 350 mPa.s and a viscosity recovery time of less than one second are preferred so that the gel can be sprayed, at a distance or not, on the surface to be treated without running.
- the objective achieved by the present invention therefore also consists in providing gels with a duration of action controlled by a rapid drying time, sufficient to guarantee the treatment of the surface, most often between 2 and 5 hours, and even between 2 and 3 hours, at a temperature between 20 ° C and 30 ° C and average relative humidity between 20 and 70%.
- the gels according to the invention comprise a viscosity agent or preferably a mixture of viscosity agents and an active decontamination agent at the abovementioned concentrations, the drying of the gel leads to a dry residue having an ability to become detached easily from the support. Thus, no rinsing with water is necessary and the process thus generates no secondary effluent.
- the gels of the present invention can be generally described as colloidal solutions comprising one or more generally mineral viscosifying agents, such as alumina or silica and an active treatment agent, for example an acid, a base, an oxidizing agent, a reducing agent or a mixture thereof, which is chosen in particular according to the nature of the treatment and the surface to be treated.
- an active treatment agent for a treatment consisting in the removal of non-fixed contamination, in the form of grease, on stainless steel and ferritic surfaces, an alkaline gel having degreasing properties can be used.
- the removal of hot and cold fixed contamination on a stainless steel surface can be done using an oxidizing gel.
- the oxide layers can be dissolved by means of a reducing gel which will preferably be used in addition to the oxidizing gel and alternately.
- the gel can be applied to the surface to be treated by conventional methods such as by spraying with a spray gun or using a brush, for example a decontaminating brush.
- the viscous colloidal solution can for example be conveyed by means of a low pressure pump ( ⁇ 7 bars) and the burst of the gel jet on the surface can be obtained with a flat jet or round jet nozzle.
- the sufficiently short viscosity recovery time allows the sprayed gel to adhere to the wall.
- the amounts of gel deposited on the surface to be treated are generally from 100 to 2000 g / m 2 , preferably 100 to 1000 g / m 2 , more preferably 300 to 700 g / m 2 . They influence the drying time of the gel.
- the drying time of the gel of the present invention depends mainly on its composition in the concentration ranges defined above. It is generally between 2 and 5 hours, more precisely between 2 and 3 hours, at a temperature between 20 ° C and 30 ° C and average relative humidity between 20 and 70%.
- the dry residue obtained after drying can be easily removed, for example by brushing and / or vacuuming, but also by gas jet, for example compressed air.
- the treatment of the surface can be repeated each time with the same gel or with gels of different nature during the different successive stages, each of these stages comprising the application of the gel, the maintenance of the gel on the surface for the treatment of the surface and its drying, as well as the elimination of the dry residue obtained.
- the present invention applies generally to the treatment, for example of decontamination, of metallic surfaces, large or not, which are not necessarily horizontal, but which can be inclined or even vertical.
- treatment is meant any surface treatment intended to clean, decontaminate or pickle said surface. It may, for example, be a radioactive or organic decontamination treatment. (for example elimination of microorganisms, parasites etc.), of a pickling treatment intended to eliminate oxides or of a degreasing treatment of a surface.
- the present invention can be used to treat all kinds of surfaces such as metal surfaces, plastic surfaces, surfaces of glassy materials, etc.
- the present invention can advantageously be used for example in the nuclear field to decontaminate tanks, ventilation ducts, storage pools, glove boxes, etc. It can be used both for the periodic maintenance of existing installations and for the remediation of installations.
- the present invention therefore also relates to a process for decontaminating an installation.
- the decontamination process can comprise a dedusting of the installation to be treated, followed by a treatment of the installation with means of a treatment method according to the present invention.
- Dusting the installation to be treated can be carried out, for example, by brushing, blowing or vacuuming the dust in order to remove the solid, non-fixed contamination.
- This pretreatment can be carried out, for example, on the stainless steel ventilation ducts of nuclear installations which contain significant quantities of dust.
- the treatment method of the present invention can then be used by applying one or more passes of gel of the invention to remove the contamination fixed at the inner walls of the sheaths.
- the gels dry completely after having acted on the surface and are easily detached from the wall by suction.
- FIG. 1 represents drying charts of a gel according to the present invention at 30 ° C. as a function of the relative humidity, this gel having a formulation Aerosil 380 (trademark) 8% + HN0 3 7 M.
- FIG. 2 represents drying graphs of a gel of the present invention at 25 ° C. as a function of relative humidity, this gel having an Aerosil 380 formulation (trademark) 8% + HN0 3 7 M (on the curve -x-: T: 25 ° C - H 2 : 42% Si038 alone).
- FIG. 3 represents drying charts of a gel of the present invention at 20 ° C. as a function of the relative humidity, this gel having a formulation Aerosil 380 (trademark) 8% + HN0 3 7 M.
- FIG. 4 represents drying charts of a gel of the present invention at 20 ° C. and 40% relative humidity depending on the amount of gel applied to a surface, this gel having a formulation
- Aerosil 380 (trademark) 8% + HN0 3 7 M.
- FIG. 5 is a graph representing the influence of the humidity rate on the drying kinetics at different drying temperatures of a gel according to the invention, this gel having an Aerosil formulation
- FIG. 6 is a graph representing the influence of the temperature on the drying kinetics of a gel according to the invention at 42% relative humidity, this gel having an Aerosil formulation
- FIG. 7 presents four photographs showing dry residues of gels obtained with the mixture Aerosil 380 (trademark) at 8% and FK310
- Te represents the evaporation rate as a percentage of the initial amount of solvent
- ts the drying time in minutes
- T the drying temperatures for each curve in ° C
- Hr the relative humidity rate during the various tests expressed as a percentage.
- the amount of gel deposited on the surface had only a slight influence on the drying characteristics and more particularly on the detachment ability. Different amounts of gel ranging from 0.1 to 2 kg of gel per m 2 were deposited on surfaces. Amounts of about 0.3 kg.m “2 to about 0.7 kg.m " 2 are preferred.
- the drying conditions are the most important parameters in the process of the present invention. Among them are the drying temperature and the humidity level of the drying air. The existence of a convective current is also important. The influence of these parameters was assessed quantitatively by plotting drying charts.
- the temperature range selected is 20 ° C to 30 ° C and the relative humidity range of the drying air 20% to 70%, the relative humidity being defined as the ratio of the vapor pressure of water at a given temperature at the saturated vapor pressure of water at the same temperature.
- New 304 L stainless steel parts are coated with gel.
- the amount of gel deposited is 0.5 kg.m "2 ( ⁇ 5%) for the following tests when this is not specified.
- the silicas are pre-mixed in a cylindrical beaker tours.min 800 -1 using a propeller stirrer to ensure intimate mixing of the silica.
- When preparing the gel was stirred at 500 tours.min "1 by the same stirring system.
- the coated samples are placed in a climatic chamber at controlled temperature and humidity.
- the climatic chamber is of the trademark KBF and has a volume of 115 liters.
- the humidity is regulated by injecting steam generated by the passage of an electric current through humidifier.
- the speed of the convective current at the surface of the samples can be considered to be identical for all cases and of very low intensity.
- the mass of the coating over time is monitored for each fixed temperature / humidity pair.
- the curves obtained have the same appearance as at 30 ° C. However, drying times are extended. Total drying is obtained at 35% humidity in a time of the order of 5 hours. Taking into account the test carried out at 30 ° C, it is determined by extrapolation that with a relative humidity of 20% the total drying time for this value at 25 ° C is between 3 hours and 5 hours. At 50% humidity, the total drying time extrapolated is 9 hours, which remains acceptable in a surface treatment process.
- the test carried out in the DEMETER cell overlaps with the test carried out at 42% relative humidity in the climatic chamber. This allows release a couple of values representative of the atmosphere of an armored cell, ie 20 ° C and approximately 42% relative humidity. This analogy does not take into account a possible difference in convection between the climatic chamber and the shielded cell.
- the drying charts established in this example make it possible to predict the drying times necessary during an application of the method of the present invention provided that the temperature of the air in the sheath and its relative humidity are known.
- the representative area of the atmosphere of an armored cell has been estimated centered around the following values: temperature: 20 ° C and relative humidity: 40%. These values were obtained by analogy by carrying out a drying test in the DEMETER cell (trademark).
- the charts show good compatibility as soon as the temperature is above 20 ° C. and the humidity is less than approximately 40%. For lower temperatures or higher humidities, it may be necessary to set up a convective regime in the duct which can be achieved with half-speed operation.
- AEROSIL 380 (trademark), which is a pyrogenic silica with a high specific surface of 380 m 2 / g, and from 0.5% to 1% by weight of precipitated silica FK 310 (trademark).
- Example 3 The viscosity agent used in this example for the preparation of alkaline gels is alumina. It is aluminum oxide Al 2 0 3 supplied by the company DEGUSSA and whose primary particle size is around 13 nanometers and the BET specific surface is 100 m 2 / g.
- a quantity of 15 g of alumina is poured into 100 ml of water or into 100 ml of a sodium hydroxide solution of determined concentration.
- the solution is stirred using a mechanical stirrer equipped with a three-blade stirrer at a speed of 600 to 800 revolutions / min for 2 to
- the gel obtained is homogeneous and can be sprayed with a low pressure pump sold by the company FEVDI.
- a quantity of alumina of 15 g per 100 mL of solution makes it possible to obtain a viscosity allowing low pressure spraying ( ⁇ 7 bars) and guarantees a long contact time with the wall because the gel does not flow on a vertical wall.
- the mass of gel deposited is checked by weighing and is fixed at 500 g / m 2 .
- the plate is then put to dry in an oven at 22 ° C ⁇ 1 ° C in the presence of a strong convective air current.
- Relative humidity is controlled and fixed at a value of 42 ⁇ 1% considered representative of the humidity conditions encountered in the ventilation ducts of nuclear installations.
- the loss of mass of the gel is then monitored over time during the evaporation of the solvent (water).
- the mass of the two most concentrated soda gels that is to say 2.5 and 5 M, is followed over time.
- the initial mass of gel deposited is 1.5 g, ie approximately 220 mg of dry alumina.
- the two gels most concentrated in soda that is to say 2.5 and 5 M do not dry.
- the loss of mass of the 2.5 M gel reaches a plateau after 5 hours and the mass of gel stabilizes at around 330 mg after 24 hours.
- the gel still contains water and remains stuck on the steel plate. Loss of gel mass the most concentrated, at 5 M, continues after 24 h and the gel contains even more water than the 2.5 M gel.
- the 0.5 M sodium hydroxide gel dries in 75 minutes and the residue is completely detached from the plate at the slightest mechanical stress.
- the 1 M soda gel dries in 2 hours and also comes off very easily. It is therefore necessary to reduce the amount of soda so that the water evaporates enough so as to obtain a residue which detaches from the support.
- a concentration of 1 to 2 mol / 1 is often preferred: it leads to a gel which dries relatively quickly, that is to say in 2 to 3 hours, and is very easily detached from the steel support at the slightest stress.
- gels based on silica AEROSIL 380 (trademark) at 8% by weight and of a mixture of nitric acid and phosphoric acid were prepared.
- the concentration of each of the two acids is preferably less than 2 mol / l. Beyond that, the gel does not dry at a temperature of 25 ° C and a relative humidity of 40%.
- the drying times observed at a temperature of 25 ° C and a relative humidity of 40% vary between 2 and 4 hours.
- a gel (HN0 3 1M / H 3 P0 4 1M) was notably prepared and tested in terms of decontamination on aluminum flanges coming from a pneumatic transfer network of a nuclear waste reprocessing plant.
- Decontamination factors of the order of 14 (Cs 137, Eu 154) were obtained after a single gel pass (Cs 137: from 1300 Bq / cm 2 to 110 Bq / cm 2 ) and the surface activity was able be lowered below 50 Bq / cm 2 with an additional pass.
- an oxidizing gel according to the invention was prepared using 3M nitric acid and 0.1 to 0.3 Ce (IV) .
- the gels dry quickly in less than 3 hours and are easily peeled off with a brush.
- the corrosion results obtained by coating 500 g / m2 on inconel are quite interesting since generalized erosion is indeed between 0.1 and 0.3 ⁇ m.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/483,839 US7713357B2 (en) | 2001-07-17 | 2002-07-15 | Method for treating a surface with a treatment gel and treatment gel |
JP2003514073A JP4334339B2 (ja) | 2001-07-17 | 2002-07-15 | 処理ゲル表面処理方法および処理ゲル |
EP02760387A EP1421165B1 (fr) | 2001-07-17 | 2002-07-15 | Procede de traitement d'une surface par un gel de traitement, et gel de traitement |
UA2004010352A UA82465C2 (uk) | 2001-07-17 | 2002-07-15 | Спосіб обробки поверхні за допомогою обробного гелю, його застосування та обробний гель |
DE60214567T DE60214567T2 (de) | 2001-07-17 | 2002-07-15 | Verfahren zur oberflächenbehandlung mittels eines gels zur behandlung, und gel zur behandlung |
US11/200,700 US7718010B2 (en) | 2001-07-17 | 2005-08-09 | Method for treating a surface with a treatment gel, and treatment gel |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR01/9520 | 2001-07-17 | ||
FR0109520A FR2827530B1 (fr) | 2001-07-17 | 2001-07-17 | Procede de traitement d'une surface par un gel de traitement, et gel de traitement |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10483839 A-371-Of-International | 2002-07-15 | ||
US11/200,700 Division US7718010B2 (en) | 2001-07-17 | 2005-08-09 | Method for treating a surface with a treatment gel, and treatment gel |
Publications (1)
Publication Number | Publication Date |
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WO2003008529A1 true WO2003008529A1 (fr) | 2003-01-30 |
Family
ID=8865598
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/FR2002/002509 WO2003008529A1 (fr) | 2001-07-17 | 2002-07-15 | Procede de traitement d'une surface par un gel de traitement, et gel de traitement |
Country Status (11)
Country | Link |
---|---|
US (2) | US7713357B2 (fr) |
EP (1) | EP1421165B1 (fr) |
JP (1) | JP4334339B2 (fr) |
CN (1) | CN1273578C (fr) |
AT (1) | ATE338806T1 (fr) |
DE (1) | DE60214567T2 (fr) |
ES (1) | ES2271318T3 (fr) |
FR (1) | FR2827530B1 (fr) |
RU (1) | RU2291895C2 (fr) |
UA (1) | UA82465C2 (fr) |
WO (1) | WO2003008529A1 (fr) |
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FR2827530B1 (fr) * | 2001-07-17 | 2004-05-21 | Commissariat Energie Atomique | Procede de traitement d'une surface par un gel de traitement, et gel de traitement |
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- 2002-07-15 AT AT02760387T patent/ATE338806T1/de not_active IP Right Cessation
- 2002-07-15 CN CNB028181379A patent/CN1273578C/zh not_active Expired - Lifetime
- 2002-07-15 RU RU2004104467/15A patent/RU2291895C2/ru not_active IP Right Cessation
- 2002-07-15 DE DE60214567T patent/DE60214567T2/de not_active Expired - Lifetime
- 2002-07-15 UA UA2004010352A patent/UA82465C2/uk unknown
- 2002-07-15 US US10/483,839 patent/US7713357B2/en not_active Expired - Fee Related
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- 2002-07-15 JP JP2003514073A patent/JP4334339B2/ja not_active Expired - Lifetime
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Cited By (13)
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US8636848B2 (en) * | 2005-10-05 | 2014-01-28 | Commissariat A L'energie Atomique | Vacuumable gel for decontaminating surfaces and use thereof |
WO2007039598A3 (fr) * | 2005-10-05 | 2007-06-28 | Commissariat Energie Atomique | Gel aspirable pour la decontamination de surfaces et utilisation |
FR2891470A1 (fr) * | 2005-10-05 | 2007-04-06 | Commissariat Energie Atomique | Gel aspirable pour la decontamination de surfaces et utilisation |
KR101848108B1 (ko) | 2010-07-02 | 2018-04-11 | 꼼미사리아 아 레네르지 아토미끄 에뜨 옥스 에너지스 앨터네이티브즈 | 생물학적 정화 겔 및 이 겔을 이용한 표면 정화 방법 |
FR2962046A1 (fr) * | 2010-07-02 | 2012-01-06 | Commissariat Energie Atomique | Gel de decontamination biologique et procede de decontamination de surfaces utilisant ce gel. |
RU2569747C2 (ru) * | 2010-07-02 | 2015-11-27 | Коммиссариат А Л'Энержи Атомик Э О Энержи Альтернатив | Гель для биологической деконтаминации и способ деконтаминации поверхностей посредством использования этого геля |
US9451765B2 (en) | 2010-07-02 | 2016-09-27 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Biological decontamination gel and method for decontaminating surfaces by using this gel |
WO2012001046A1 (fr) * | 2010-07-02 | 2012-01-05 | Commissariat à l'énergie atomique et aux énergies alternatives | Gel de décontamination biologique et procédé de décontamination de surfaces utilisant ce gel |
US10105714B2 (en) | 2012-05-11 | 2018-10-23 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Method for the radioactive decontamination of soil by dispersed air flotation foam and said foam |
WO2016059125A1 (fr) * | 2014-10-15 | 2016-04-21 | Commissariat à l'énergie atomique et aux énergies alternatives | Gel pour eliminer les graffitis et procede pour eliminer les graffitis utilisant ce gel |
FR3027310A1 (fr) * | 2014-10-15 | 2016-04-22 | Commissariat Energie Atomique | Gel pour eliminer les graffitis et procede pour eliminer les graffitis utilisant ce gel. |
US10376931B2 (en) | 2014-10-15 | 2019-08-13 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Gel for removing graffiti and method for removing graffiti using said gel |
RU2655525C2 (ru) * | 2016-10-05 | 2018-05-28 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Волгоградский государственный медицинский университет" Министерства здравоохранения Российской Федерации ГБОУ ВПО ВолгГМУ МЗ РФ | Неводный способ очистки для удаления поверхностных загрязнений с ортопедических конструкций |
Also Published As
Publication number | Publication date |
---|---|
DE60214567T2 (de) | 2007-09-13 |
RU2291895C2 (ru) | 2007-01-20 |
RU2004104467A (ru) | 2005-05-10 |
CN1273578C (zh) | 2006-09-06 |
JP2004535510A (ja) | 2004-11-25 |
ES2271318T3 (es) | 2007-04-16 |
ATE338806T1 (de) | 2006-09-15 |
EP1421165B1 (fr) | 2006-09-06 |
US7718010B2 (en) | 2010-05-18 |
EP1421165A1 (fr) | 2004-05-26 |
US7713357B2 (en) | 2010-05-11 |
FR2827530A1 (fr) | 2003-01-24 |
CN1592778A (zh) | 2005-03-09 |
FR2827530B1 (fr) | 2004-05-21 |
US20040175505A1 (en) | 2004-09-09 |
UA82465C2 (uk) | 2008-04-25 |
JP4334339B2 (ja) | 2009-09-30 |
US20060032518A1 (en) | 2006-02-16 |
DE60214567D1 (de) | 2006-10-19 |
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