CN106868481A - Application of the Alumina gel coating on metal uranium surface spontaneous combustion is suppressed - Google Patents
Application of the Alumina gel coating on metal uranium surface spontaneous combustion is suppressed Download PDFInfo
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- CN106868481A CN106868481A CN201710210200.3A CN201710210200A CN106868481A CN 106868481 A CN106868481 A CN 106868481A CN 201710210200 A CN201710210200 A CN 201710210200A CN 106868481 A CN106868481 A CN 106868481A
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- alumina gel
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- alumina
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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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C20/00—Chemical coating by decomposition of either solid compounds or suspensions of the coating forming compounds, without leaving reaction products of surface material in the coating
- C23C20/06—Coating with inorganic material, other than metallic material
- C23C20/08—Coating with inorganic material, other than metallic material with compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
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- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Chemically Coating (AREA)
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- Paints Or Removers (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
The invention discloses a kind of application of Alumina gel coating on metal uranium surface spontaneous combustion is suppressed, the preparation method of the Alumina gel coating is comprised the following steps：It is prepared by (I) Alumina gel；(II) Alumina gel concentration is adjusted；(III) Alumina gel pH value is adjusted；(IV) metallic uranium surface spraying；Air-dried, cohesion of (V) coating.The present invention uses inorganic matrix material, and subsequent material recycling is simple；Matrix material Alumina gel has preferable heatproof flame-retardant performance from as fire proofing；The coating for preparing is good with metallic uranium associativity uranium layer surface is stable, fine and close, non-combustible, high temperature resistant, can effectively suppress the oxidation or spontaneous combustion of metallic uranium layer, and as far as possible small on the uranium material recycle treatment influence in later stage.
Description
The present patent application is the divisional application of parent application " suppressing the preparation method of the coating of metal uranium surface spontaneous combustion ", female
The applying date of case application is on April 10th, 2015, application number 2015101664216.
Technical field
The invention belongs to a kind of method in metal surface prepares coating, and in particular to one kind suppresses metal uranium surface spontaneous combustion
Coating preparation method.
Background technology
The uranium for being attached to process components surface can be produced thin in metallic uranium vacuum melting and metallic uranium vacuum evaporation process
Film or uranium layer, because metallic uranium chemism is extremely strong, can aoxidize and corrode in atmosphere, be attached to the metal on process components surface
Uranium may occur spontaneous combustion at any time in storage process, and the unexpected spontaneous combustion in storage easily triggers accident.Use canister at present
Package storage, the method for avoiding depositing combustible around hold-up vessel, although largely reduce process components surface gold
The harm that the spontaneous combustion of category uranium is produced, but fail fundamentally to solve the metallic uranium layer spontaneous combustion problems in storage.Accordingly, it would be desirable in metal
Uranium surface surface makes a kind of coating for suppressing spontaneous combustion.
The content of the invention
The present invention is proposed to overcome shortcoming present in prior art, the purpose is to provide a kind of suppression metal
The preparation method of the coating of uranium surface spontaneous combustion.
The technical scheme is that：
A kind of preparation method of the coating for suppressing metal uranium surface spontaneous combustion, the preparation method is comprised the following steps：
It is prepared by (I) Alumina gel
The pure water for taking certain mass is heated to 80 DEG C, and finely ground aluminium isopropoxide is added thereto, and 80 DEG C of heated at constant temperature 1 are small
When, Alumina gel is obtained, Alumina gel is then heated to 90 DEG C and is stirred 1 hour；
(II) Alumina gel concentration is adjusted
Alumina gel concentration is adjusted with pure water after Alumina gel is uniform, the quality of alumina molecule group is hydrated into Alumina gel
Between fraction 25%~30%；
(III) Alumina gel pH value is adjusted
Alumina gel pH value is adjusted between 3-4 with hydrochloric acid, obtains coating colloidal solution；
(IV) metallic uranium surface spraying
Empty, uranium layer surface will just be exposed it be not apparent from the process components of oxidation and will be placed in vent cabinet level table, coating colloid is molten
Liquid is filled in atomizing lance, then by coating colloidal solution even application in metallic uranium layer surface；
Air-dried, cohesion of (V) coating
Open ventilation to accelerate uranium layer surface coating colloidal solution to air-dry, cohesion to be drained off obtains until colloidal sol film forming
Protective coating.
The protective coating constituent structure formula is x (Al2O3·nH2O)·yHCl·zH2O。
Pure water and the mass ratio of aluminium isopropoxide are 13.2 in the step (I):1.
It is 0.07 with the mol ratio of aluminium isopropoxide that hydrochloric acid is added in the step (III):1.
The beneficial effects of the invention are as follows：
The present invention uses inorganic matrix material, and subsequent material recycling is simple；Matrix material Alumina gel is from as fire-retardant
Material, there is preferable heatproof flame-retardant performance；The coating for preparing uranium layer surface is stable, fine and close, non-combustible, high temperature resistant, with
Metallic uranium associativity is good, can effectively suppress the oxidation or spontaneous combustion of metallic uranium layer, and process influence to the uranium material recycle in later stage
It is as far as possible small.
Brief description of the drawings
Fig. 1 is the preparation flow schematic diagram that metallic uranium layer spontaneous combustion of the present invention suppresses coating.
Specific embodiment
Suppress coating to metallic uranium of the present invention layer spontaneous combustion with reference to Figure of description and embodiment to be described in detail：
As shown in figure 1, a kind of preparation method of the coating for suppressing metal uranium surface spontaneous combustion, comprises the following steps：
It is prepared by (I) Alumina gel
The pure water for taking certain mass is heated to 80 DEG C, and finely ground aluminium isopropoxide is added thereto, and 80 DEG C of heated at constant temperature 1 are small
When, Alumina gel being then heated to 90 DEG C and is stirred 1 hour, pure water is 13.2 with the mass ratio of aluminium isopropoxide:1(S1)；
(II) Alumina gel concentration is adjusted
Alumina gel concentration is adjusted with pure water after Alumina gel is uniform, the quality of alumina molecule group is hydrated into Alumina gel
Between fraction 25%~30% (S2)；
(III) Alumina gel pH value is adjusted
Alumina gel pH value is adjusted between 3-4 with hydrochloric acid, obtains coating colloidal solution, hydrochloric acid and the aluminium isopropoxide of addition
Mol ratio is 0.07:1(S3)；
(IV) metallic uranium surface spraying
Empty, uranium layer surface will just be exposed it be not apparent from the process components of oxidation and will be placed in vent cabinet level table, coating colloid is molten
Liquid is filled in atomizing lance, then by coating colloidal solution even application at metallic uranium layer surface (S4)；
Air-dried, cohesion of (V) coating
Open ventilation to accelerate uranium layer surface coating colloidal solution to air-dry, cohesion to be drained off obtains until colloidal sol film forming
Protective coating (S5).
The protective coating constituent structure formula is x (Al2O3·nH2O)·yHCl·zH2O。
Embodiment 1
A kind of preparation method of the coating for suppressing metal uranium surface spontaneous combustion, comprises the following steps：
It is prepared by (I) Alumina gel
The pure water for taking certain mass is heated to 80 DEG C, and finely ground aluminium isopropoxide is added thereto, and 80 DEG C of heated at constant temperature 1 are small
When, Alumina gel being then heated to 90 DEG C and is stirred 1 hour, pure water is 13.2 with the mass ratio of aluminium isopropoxide:1；
(II) Alumina gel concentration is adjusted
Alumina gel concentration is adjusted with pure water after Alumina gel is uniform, the quality of alumina molecule group is hydrated into Alumina gel
Fraction is 25%；
(III) Alumina gel pH value is adjusted
Alumina gel pH value is adjusted to 3 with hydrochloric acid, obtains coating colloidal solution, the hydrochloric acid of addition and the mol ratio of aluminium isopropoxide
It is 0.07:1；
(IV) metallic uranium surface spraying
Empty, uranium layer surface will just be exposed the process components of oxidation be not apparent from it and be placed in vent cabinet level table, by coating Alumina gel
Solution is filled in atomizing lance, then by colloidal solution even application in metallic uranium layer surface；
Air-dried, cohesion of (V) coating
Open ventilation to accelerate uranium layer surface Alumina gel solution to air-dry, cohesion to be drained off is protected until colloidal sol film forming
Shield coating.
Embodiment 2
It is prepared by (I) Alumina gel
The pure water for taking certain mass is heated to 80 DEG C, and finely ground aluminium isopropoxide is added thereto, and 80 DEG C of heated at constant temperature 1 are small
When, Alumina gel being then heated to 90 DEG C and is stirred 1 hour, pure water is 13.2 with the mass ratio of aluminium isopropoxide:1；
(II) Alumina gel concentration is adjusted
Alumina gel concentration is adjusted with pure water after Alumina gel is uniform, the mass fraction of hydrated alumina micel is
30%；
(III) Alumina gel pH value is adjusted
Alumina gel pH value is adjusted to 4 with hydrochloric acid, obtains coating colloidal solution, the hydrochloric acid of addition and the mol ratio of aluminium isopropoxide
It is 0.07:1；
(IV) metallic uranium surface spraying
Empty, uranium layer surface will just be exposed it be not apparent from the process components of oxidation and will be placed in vent cabinet level table, coating colloid is molten
Liquid is filled in atomizing lance, then by coating colloidal solution even application in metallic uranium layer surface；
Air-dried, cohesion of (V) coating
Open ventilation to accelerate uranium layer surface coating colloidal solution to air-dry, cohesion to be drained off obtains until colloidal sol film forming
Protective coating.
Tailing plate in metallic uranium vacuum evaporation process is to be deposited with layer of metal in stainless steel plate or carbon steel plate surface
Uranium film, because uranium film specific surface area is larger, in atmosphere at any time may spontaneous combustion under normal temperature.The empty tailing plate for taking out will just be exposed attached
The uranium surface for metallic uranium side makes Alumina gel coating by the method for the invention, and wait is condensed for 24 hours completely in coating
After film forming, fine and close, transparent coating has been obtained.Burn in coating surface high temperature, flame calcination, finger rub mill with the hands, coating is all protected
It is fixed to keep steady, not cracking, and combustion phenomena does not occur in uranium layer in coating；Process components are stored into half a year at normal temperatures, in air,
Uranium surface coating is still stablized, and change does not occur.
Claims (4)
1. application of the Alumina gel coating on metal uranium surface spontaneous combustion is suppressed, it is characterised in that：The preparation of the Alumina gel coating
Method is comprised the following steps：
It is prepared by (I) Alumina gel
The pure water for taking certain mass is heated to 80 DEG C, and finely ground aluminium isopropoxide is added thereto, 80 DEG C of heated at constant temperature 1 hour, obtains
To Alumina gel, Alumina gel is then heated to 90 DEG C and is stirred 1 hour, wherein：Pure water is 13.2 with the mass ratio of aluminium isopropoxide:
1(S1)；
(II) Alumina gel concentration is adjusted
Alumina gel concentration is adjusted with pure water after Alumina gel is uniform, the mass fraction of alumina molecule group is hydrated into Alumina gel
Between 25%~30% (S2)；
(III) Alumina gel pH value is adjusted
Alumina gel pH value is adjusted between 3-4 with hydrochloric acid, obtains coating colloidal solution, wherein：Hydrochloric acid and aluminium isopropoxide mole
Than being 0.07:1(S3)；
(IV) metallic uranium surface spraying
Coating colloidal solution is filled in atomizing lance, then by coating colloidal solution even application in metallic uranium layer surface
(S4)；
Air-dried, cohesion of (V) coating
Open ventilation to accelerate uranium layer surface coating colloidal solution to air-dry, cohesion to be drained off is protected until colloidal sol film forming
Coating (S5).
2. application of the Alumina gel coating according to claim 1 on metal uranium surface spontaneous combustion is suppressed, it is characterised in that：Institute
State Alumina gel coating surface high temperature burn, flame calcination, finger rub with the hands mill, coating all keep stabilization, it is not cracking, in coating
There is not combustion phenomena in uranium layer；Process components are stored half a year at normal temperatures, in air, uranium surface coating is still stablized, and does not go out
Now change.
3. application of the Alumina gel coating according to claim 1 on metal uranium surface spontaneous combustion is suppressed, it is characterised in that：Institute
State Alumina gel coating and be coated in and just exposure sky, uranium layer surface will be not apparent from the process components of oxidation.
4. a kind of tailing plate, it is characterised in that：Stainless steel plate or carbon steel plate surface evaporation have layer of metal uranium film, metallic uranium film
Surface is coated with Alumina gel coating, and the preparation method of the Alumina gel coating is comprised the following steps：
It is prepared by (I) Alumina gel
The pure water for taking certain mass is heated to 80 DEG C, and finely ground aluminium isopropoxide is added thereto, 80 DEG C of heated at constant temperature 1 hour, obtains
To Alumina gel, Alumina gel is then heated to 90 DEG C and is stirred 1 hour, wherein：Pure water is 13.2 with the mass ratio of aluminium isopropoxide:
1(S1)；
(II) Alumina gel concentration is adjusted
Alumina gel concentration is adjusted with pure water after Alumina gel is uniform, the mass fraction of alumina molecule group is hydrated into Alumina gel
Between 25%~30% (S2)；
(III) Alumina gel pH value is adjusted
Alumina gel pH value is adjusted between 3-4 with hydrochloric acid, obtains coating colloidal solution, wherein：Hydrochloric acid and aluminium isopropoxide mole
Than being 0.07:1(S3)；
(IV) metallic uranium surface spraying
Empty, uranium layer surface will just be exposed the process components of oxidation be not apparent from it and be placed in vent cabinet level table, coating colloidal solution will be filled
It is attached in atomizing lance, then by coating colloidal solution even application at metallic uranium layer surface (S4)；
Air-dried, cohesion of (V) coating
Open ventilation to accelerate uranium layer surface coating colloidal solution to air-dry, cohesion to be drained off is protected until colloidal sol film forming
Coating (S5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710210200.3A CN106868481B (en) | 2015-04-10 | 2015-04-10 | Aluminum sol coating is inhibiting the application in the spontaneous combustion of metal uranium surface |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510166421.6A CN104746059B (en) | 2015-04-10 | 2015-04-10 | Suppress the preparation method of the coating of metal uranium surface spontaneous combustion |
| CN201710210200.3A CN106868481B (en) | 2015-04-10 | 2015-04-10 | Aluminum sol coating is inhibiting the application in the spontaneous combustion of metal uranium surface |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510166421.6A Division CN104746059B (en) | 2015-04-10 | 2015-04-10 | Suppress the preparation method of the coating of metal uranium surface spontaneous combustion |
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| CN106868481A true CN106868481A (en) | 2017-06-20 |
| CN106868481B CN106868481B (en) | 2019-03-12 |
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| CN201710210200.3A Active CN106868481B (en) | 2015-04-10 | 2015-04-10 | Aluminum sol coating is inhibiting the application in the spontaneous combustion of metal uranium surface |
| CN201510166421.6A Active CN104746059B (en) | 2015-04-10 | 2015-04-10 | Suppress the preparation method of the coating of metal uranium surface spontaneous combustion |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107964339A (en) * | 2017-12-07 | 2018-04-27 | 吴子享 | A kind of silanization graphene rust-proofing colloidal sol and preparation method thereof |
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|---|---|---|---|---|
| US2894884A (en) * | 1945-01-09 | 1959-07-14 | Allen G Gray | Method of applying nickel coatings on uranium |
| GB829089A (en) * | 1948-07-26 | 1960-02-24 | Atomic Energy Authority Uk | Improvements in or relating to coating of uranium metal and uranium-base alloy |
| US4385943A (en) * | 1981-10-21 | 1983-05-31 | The United States Of America As Represented By The United States Department Of Energy | Corrosion-resistant uranium |
| CN1415543A (en) * | 2002-07-23 | 2003-05-07 | 浙江省中明科技有限公司 | Method for preparing nano alumina in high purity by using vapor phase process of aluminium alkoxide |
| CN102021545A (en) * | 2010-12-16 | 2011-04-20 | 沈阳化工大学 | Preparation method of Al2O3 coating with high temperature oxidation resistance |
| CN102824716A (en) * | 2012-09-24 | 2012-12-19 | 核工业理化工程研究院 | Preparation method of fire extinguishing agent for extinguishing spontaneous combustion of uranium metal |
| CN103013192A (en) * | 2012-12-08 | 2013-04-03 | 上海迪道科技有限公司 | Manufacturing method of micronano-coating for metal material surface corrosion prevention and modification |
| CN103614713A (en) * | 2013-12-05 | 2014-03-05 | 广西大学 | Method for preparing high-temperature composite coating on niobium-based surface by utilizing sol-gel method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB853521A (en) * | 1945-01-06 | 1960-11-09 | Atomic Energy Authority Uk | Electro-plating uranium with protective metals |
| US6760396B1 (en) * | 1946-02-04 | 2004-07-06 | The United States Of America As Represented By The United States Department Of Energy | Coated metal articles and method of making |
| CN102304713B (en) * | 2011-08-09 | 2013-03-13 | 四川材料与工艺研究所 | Preparation method of uranium surface coating |
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2015
- 2015-04-10 CN CN201710210200.3A patent/CN106868481B/en active Active
- 2015-04-10 CN CN201510166421.6A patent/CN104746059B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2894884A (en) * | 1945-01-09 | 1959-07-14 | Allen G Gray | Method of applying nickel coatings on uranium |
| GB829089A (en) * | 1948-07-26 | 1960-02-24 | Atomic Energy Authority Uk | Improvements in or relating to coating of uranium metal and uranium-base alloy |
| US4385943A (en) * | 1981-10-21 | 1983-05-31 | The United States Of America As Represented By The United States Department Of Energy | Corrosion-resistant uranium |
| CN1415543A (en) * | 2002-07-23 | 2003-05-07 | 浙江省中明科技有限公司 | Method for preparing nano alumina in high purity by using vapor phase process of aluminium alkoxide |
| CN102021545A (en) * | 2010-12-16 | 2011-04-20 | 沈阳化工大学 | Preparation method of Al2O3 coating with high temperature oxidation resistance |
| CN102824716A (en) * | 2012-09-24 | 2012-12-19 | 核工业理化工程研究院 | Preparation method of fire extinguishing agent for extinguishing spontaneous combustion of uranium metal |
| CN103013192A (en) * | 2012-12-08 | 2013-04-03 | 上海迪道科技有限公司 | Manufacturing method of micronano-coating for metal material surface corrosion prevention and modification |
| CN103614713A (en) * | 2013-12-05 | 2014-03-05 | 广西大学 | Method for preparing high-temperature composite coating on niobium-based surface by utilizing sol-gel method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107964339A (en) * | 2017-12-07 | 2018-04-27 | 吴子享 | A kind of silanization graphene rust-proofing colloidal sol and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104746059B (en) | 2017-08-25 |
| CN104746059A (en) | 2015-07-01 |
| CN106868481B (en) | 2019-03-12 |
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