CN106868481B - Aluminum sol coating is inhibiting the application in the spontaneous combustion of metal uranium surface - Google Patents
Aluminum sol coating is inhibiting the application in the spontaneous combustion of metal uranium surface Download PDFInfo
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- CN106868481B CN106868481B CN201710210200.3A CN201710210200A CN106868481B CN 106868481 B CN106868481 B CN 106868481B CN 201710210200 A CN201710210200 A CN 201710210200A CN 106868481 B CN106868481 B CN 106868481B
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- aluminum sol
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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 Aluminum sol coatings to inhibit the application in the spontaneous combustion of metal uranium surface, and the preparation method of the Aluminum sol coating is the following steps are included: prepared by (I) Aluminum sol；(II) Aluminum sol concentration is adjusted；(III) Aluminum sol pH value is adjusted；The spraying of (IV) metal uranium surface；(V) coating is air-dried, is agglomerated.The present invention uses inorganic matrix material, and subsequent material recovery processing is simple；Basis material Aluminum sol itself is fire proofing, there is preferable heatproof flame-retardant performance；The coating being prepared is good with metallic uranium associativity uranium layer surface is stable, fine and close, non-combustible, high temperature resistant, can effectively inhibit the oxidation or spontaneous combustion of metallic uranium layer, and influence on the processing of the uranium material recycle in later period small as far as possible.
Description
The present patent application is the divisional application of parent application " preparation method for inhibiting 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 methods in metal surface prepares coating, and in particular to a kind of inhibition metal uranium surface spontaneous combustion
Coating preparation method.
Background technique
Can be generated in metallic uranium vacuum melting and metallic uranium vacuum evaporation process be attached to process components surface uranium it is thin
Film or uranium layer can aoxidize and corrode in air since metallic uranium chemical activity is extremely strong, be attached to the metal on process components surface
Spontaneous combustion may occur at any time during storage for uranium, and the unexpected spontaneous combustion in storage easily causes accident.Canister is used at present
Package storage, the method that storage combustible is avoided around hold-up vessel, although largely reducing process components surface gold
Belong to the harm that uranium spontaneous combustion generates, but fails fundamentally to solve the metallic uranium layer spontaneous combustion problems in storage.Therefore, it is necessary in metal
Uranium surface surface makes a kind of coating that can inhibit spontaneous combustion.
Summary of the invention
The present invention is proposed to overcome disadvantage existing in the prior art, and the purpose is to provide a kind of inhibition metal
The preparation method of the coating of uranium surface spontaneous combustion.
The technical scheme is that
A kind of preparation method for the coating inhibiting the spontaneous combustion of metal uranium surface, the preparation method comprises the following steps:
The preparation of (I) Aluminum sol
It takes the pure water of certain mass to be heated to 80 DEG C, finely ground aluminium isopropoxide is added thereto, 80 DEG C of heated at constant temperature 1 are small
When, Aluminum sol is obtained, Aluminum sol is then heated to 90 DEG C and is stirred 1 hour；
(II) Aluminum sol concentration is adjusted
Aluminum sol concentration is adjusted with pure water after Aluminum sol is uniform, until in Aluminum sol hydrated alumina micel quality
Between score 25%~30%；
(III) Aluminum sol pH value is adjusted
Aluminum sol pH value is adjusted between 3-4 with hydrochloric acid, obtains coating colloidal solution；
The spraying of (IV) metal uranium surface
The process components that rigid exposure is empty, uranium layer surface is not apparent from oxidation are 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；
(V) coating is air-dried, is agglomerated
It opens ventilation and accelerates to air-dry by uranium layer surface coating colloidal solution, cohesion to be drained off forms a film until colloidal sol to get arriving
Protective coating.
The protective coating constituent structure formula is x (Al2O3·nH2O)·yHCl·zH2O。
The mass ratio of pure water and aluminium isopropoxide is 13.2:1 in the step (I).
The molar ratio that hydrochloric acid and aluminium isopropoxide are added in the step (III) is 0.07:1.
The beneficial effects of the present invention are:
The present invention uses inorganic matrix material, and subsequent material recovery processing is simple；Basis material Aluminum sol itself is fire-retardant
Material has preferable heatproof flame-retardant performance；The coating being prepared uranium layer surface is stable, fine and close, non-combustible, high temperature resistant, with
Metallic uranium associativity is good, can effectively inhibit the oxidation or spontaneous combustion of metallic uranium layer, and influence on the processing of the uranium material recycle in later period
It is small as far as possible.
Detailed description of the invention
Fig. 1 is the preparation flow schematic diagram that metallic uranium layer spontaneous combustion of the present invention inhibits coating.
Specific embodiment
With reference to the accompanying drawings of the specification and embodiment inhibits coating to be described in detail metallic uranium layer spontaneous combustion of the present invention:
As shown in Figure 1, a kind of preparation method for the coating for inhibiting the spontaneous combustion of metal uranium surface, comprising the following steps:
The preparation of (I) Aluminum sol
It takes the pure water of certain mass to be heated to 80 DEG C, finely ground aluminium isopropoxide is added thereto, 80 DEG C of heated at constant temperature 1 are small
When, Aluminum sol is then heated to 90 DEG C and is stirred 1 hour, the mass ratio of pure water and aluminium isopropoxide is 13.2:1 (S1)；
(II) Aluminum sol concentration is adjusted
Aluminum sol concentration is adjusted with pure water after Aluminum sol is uniform, until in Aluminum sol hydrated alumina micel quality
Between score 25%~30% (S2)；
(III) Aluminum sol pH value is adjusted
Aluminum sol pH value is adjusted between 3-4 with hydrochloric acid, obtains coating colloidal solution, the hydrochloric acid of addition and aluminium isopropoxide
Molar ratio is 0.07:1 (S3)；
The spraying of (IV) metal uranium surface
The process components that rigid exposure is empty, uranium layer surface is not apparent from oxidation are 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)；
(V) coating is air-dried, is agglomerated
It opens ventilation and accelerates to air-dry by uranium layer surface coating colloidal solution, cohesion to be drained off forms a film until colloidal sol to get arriving
Protective coating (S5).
The protective coating constituent structure formula is x (Al2O3·nH2O)·yHCl·zH2O。
Embodiment 1
A kind of preparation method for the coating inhibiting the spontaneous combustion of metal uranium surface, comprising the following steps:
The preparation of (I) Aluminum sol
It takes the pure water of certain mass to be heated to 80 DEG C, finely ground aluminium isopropoxide is added thereto, 80 DEG C of heated at constant temperature 1 are small
When, Aluminum sol is then heated to 90 DEG C and is stirred 1 hour, the mass ratio of pure water and aluminium isopropoxide is 13.2:1；
(II) Aluminum sol concentration is adjusted
Aluminum sol concentration is adjusted with pure water after Aluminum sol is uniform, until in Aluminum sol hydrated alumina micel quality
Score is 25%；
(III) Aluminum sol pH value is adjusted
Aluminum sol pH value is adjusted to 3 with hydrochloric acid, obtains coating colloidal solution, the hydrochloric acid of addition and the molar ratio of aluminium isopropoxide
For 0.07:1；
The spraying of (IV) metal uranium surface
The process components that rigid exposure is empty, uranium layer surface is not apparent from oxidation are placed in vent cabinet level table, by coating Aluminum sol
Solution is filled in atomizing lance, then by colloidal solution even application in metallic uranium layer surface；
(V) coating is air-dried, is agglomerated
Open ventilation by uranium layer surface Aluminum sol solution accelerate air-dry, it is to be drained off cohesion until colloidal sol form a film to get to protect
Protect coating.
Embodiment 2
The preparation of (I) Aluminum sol
It takes the pure water of certain mass to be heated to 80 DEG C, finely ground aluminium isopropoxide is added thereto, 80 DEG C of heated at constant temperature 1 are small
When, Aluminum sol is then heated to 90 DEG C and is stirred 1 hour, the mass ratio of pure water and aluminium isopropoxide is 13.2:1；
(II) Aluminum sol concentration is adjusted
Aluminum sol concentration is adjusted with pure water after Aluminum sol is uniform, the mass fraction of hydrated alumina micel is
30%；
(III) Aluminum sol pH value is adjusted
Aluminum sol pH value is adjusted to 4 with hydrochloric acid, obtains coating colloidal solution, the hydrochloric acid of addition and the molar ratio of aluminium isopropoxide
For 0.07:1；
The spraying of (IV) metal uranium surface
The process components that rigid exposure is empty, uranium layer surface is not apparent from oxidation are 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；
(V) coating is air-dried, is agglomerated
It opens ventilation and accelerates to air-dry by uranium layer surface coating colloidal solution, cohesion to be drained off forms a film until colloidal sol to get arriving
Protective coating.
Tailing plate in metallic uranium vacuum evaporation process is that one layer of metal has been deposited in stainless steel plate or carbon steel plate surface
Uranium film in air at any time may spontaneous combustion under room temperature since uranium film specific surface area is larger.The empty tailing plate taken out is exposed attached by rigid
The uranium surface of metallic uranium side make Aluminum sol coating by the method for the invention, and wait and being agglomerated completely in coating for 24 hours
After film forming, fine and close, transparent coating has been obtained.Burned with high temperature in coating surface, flame calcination, finger rub mill with the hands, coating is all protected
It is fixed to keep steady, and does not crack, uranium layer does not occur combustion phenomena in coating；By process components at normal temperature, half a year is stored in air,
Uranium surface coating is still stable, does not change.
Claims (4)
1. Aluminum sol coating is inhibiting the application in the spontaneous combustion of metal uranium surface, it is characterised in that: the preparation of the Aluminum sol coating
Method the following steps are included:
The preparation of (I) Aluminum sol
Take the pure water of certain mass to be heated to 80 DEG C, finely ground aluminium isopropoxide be added thereto, 80 DEG C heated at constant temperature 1 hour, obtain
To Aluminum sol, Aluminum sol is then heated to 90 DEG C and is stirred 1 hour, in which: the mass ratio of pure water and aluminium isopropoxide is 13.2:
1(S1)；
(II) Aluminum sol concentration is adjusted
Aluminum sol concentration is adjusted with pure water after Aluminum sol is uniform, until in Aluminum sol hydrated alumina micel mass fraction
Between 25%~30% (S2)；
(III) Aluminum sol pH value is adjusted
Aluminum sol pH value is adjusted between 3-4 with hydrochloric acid, obtains coating colloidal solution, in which: mole of hydrochloric acid and aluminium isopropoxide
Than for 0.07:1 (S3)；
(iv) metal uranium surface sprays
Coating colloidal solution is filled in atomizing lance, then by coating colloidal solution even application in metallic uranium layer surface
(S4)；
(v) air-dried, the cohesion of coating
Open ventilation by uranium layer surface coating colloidal solution accelerate air-dry, it is to be drained off cohesion until colloidal sol form a film to get to protection
Coating (S5).
2. Aluminum sol coating according to claim 1 is inhibiting the application in the spontaneous combustion of metal uranium surface, it is characterised in that: institute
State that Aluminum sol coating surface is burned with high temperature, flame calcination, finger rub mill with the hands, coating all keeps stable, do not crack, in coating
Uranium layer does not occur combustion phenomena；By process components at normal temperature, stored in air half a year, uranium surface coating is still stable, does not go out
Now change.
3. Aluminum sol coating according to claim 1 is inhibiting the application in the spontaneous combustion of metal uranium surface, it is characterised in that: institute
Stating Aluminum sol coating, empty, uranium layer surface is not apparent from the process components of oxidation coated in just exposure.
4. a kind of tailing plate, it is characterised in that: stainless steel plate or carbon steel plate surface are vapor-deposited with one layer of metallic uranium film, metallic uranium film
Surface is coated with Aluminum sol coating, the preparation method of the Aluminum sol coating the following steps are included:
The preparation of (I) Aluminum sol
Take the pure water of certain mass to be heated to 80 DEG C, finely ground aluminium isopropoxide be added thereto, 80 DEG C heated at constant temperature 1 hour, obtain
To Aluminum sol, Aluminum sol is then heated to 90 DEG C and is stirred 1 hour, in which: the mass ratio of pure water and aluminium isopropoxide is 13.2:
1(S1)；
(II) Aluminum sol concentration is adjusted
Aluminum sol concentration is adjusted with pure water after Aluminum sol is uniform, until in Aluminum sol hydrated alumina micel mass fraction
Between 25%~30% (S2)；
(III) Aluminum sol pH value is adjusted
Aluminum sol pH value is adjusted between 3-4 with hydrochloric acid, obtains coating colloidal solution, in which: mole of hydrochloric acid and aluminium isopropoxide
Than for 0.07:1 (S3)；
(iv) metal uranium surface sprays
The process components that rigid exposure is empty, uranium layer surface is not apparent from oxidation are placed in vent cabinet level table, coating colloidal solution is filled
It is attached in atomizing lance, then by coating colloidal solution even application at metallic uranium layer surface (S4)；
(v) air-dried, the cohesion of coating
Open ventilation by uranium layer surface coating colloidal solution accelerate air-dry, it is to be drained off cohesion until colloidal sol form a film to get to protection
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)
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| 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 CN106868481A (en) | 2017-06-20 |
| CN106868481B true CN106868481B (en) | 2019-03-12 |
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| 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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| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104746059B (en) | 2017-08-25 |
| CN106868481A (en) | 2017-06-20 |
| CN104746059A (en) | 2015-07-01 |
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